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(1)Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 CCIE Lab Workbook: CCIE R&S Lab Workbook | CCIE Security Lab Workbook | CCIE SP Lab Workbook | CCIE Voice Lab Workbook | CCIE Written Workbook: CCIE R&S 350-001 Written Workbook | CCIE Security 350-018 Written Workbook | CCIE SP 350-029 Written Workbook | CCIE Voice 350-030 Written Workbook | CCNA Exam Dumps: CCNA RS Dumps | CCNA ICND1/ICND2 Dumps | CCNA Security Dumps | CCNA SP Dumps | CCNA SP Operations Dumps | CCNA Voice Dumps | CCNA Wireless Dumps | CCNA Data Center Dumps | CCDA Dumps | CCNP Exam Dumps: CCNP RS Dumps | CCNP Security Dumps | CCNP SP Dumps | CCNP SP Operations Dumps | CCNP Voice Dumps | CCNP Wireless Dumps | CCNP Data Center Dumps | CCDP Dumps |. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(2) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Configuring Basic EIGRP Lab ............................................................................................................ 3 Configuring Default-network for EIGRP Lab .................................................................................... 6 Manually Summarizing EIGRP Routes Lab ..................................................................................... 11 Configuring EIGRP Unequal Cost Paths Lab ................................................................................... 15 Configuring EIGRP Authentication Lab .......................................................................................... 18 Understand EIGRP Query Lab ........................................................................................................ 20 Configuring Basic Multi Area OSPF and Area Summary Lab ......................................................... 28 Configuring OSPF in NBMA Lab ..................................................................................................... 32 Configuring OSPF Authentication Lab ........................................................................................... 37 Configuring OSPF External Summary Lab ...................................................................................... 43 Configuring OSPF Default Route With Metric Lab ......................................................................... 46 Configuring OSPF Stub Area Lab .................................................................................................... 49 Configuring OSPF Totally Stub Area Lab ........................................................................................ 53 Configuring OSPF NSSA Area and NSSA Totally Stub Lab .............................................................. 56 Configuring OSPF Virtual-Link between normal area and backbone area Lab ............................. 62 Configuring OSPF Virtual-Link between 2 backbone areas Lab .................................................... 65 Understand OSPF Routing Between Inter Area Lab ...................................................................... 68 Configuring Basic IS-IS Lab ............................................................................................................. 70 Configuring IS-IS Multi Area and Summary Route Lab .................................................................. 74 Migrate IS-IS Area Lab ................................................................................................................... 78 Redistributing into RIP and OSPF Lab ............................................................................................ 81 Redistributing Between EIGRP and IS-IS Lab ................................................................................. 83 Redistribution Using Administrative Distance Lab ........................................................................ 87 Filtering Routing Updates with a Distribute List Lab ..................................................................... 89 Filtering Routing Updates with a Route Map Lab ......................................................................... 91 Using Route Tag Filtering Routing Updates Lab ............................................................................ 93 Policy-based route Lab .................................................................................................................. 96 Configuring Basic BGP Lab ............................................................................................................. 99 Configuring BGP Using Loopback Addresses Lab ........................................................................ 101 Understand BGP Auto-Summary Lab .......................................................................................... 103 Configuring BGP Summarization Lab ........................................................................................... 106 Understand BGP Split Horizon Rule Lab ...................................................................................... 108. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(3) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Understand BGP Synchronization Rule Lab ................................................................................. 111 BGP Neighbor Authentication Lab............................................................................................... 114 Configuring BGP Local Preference Lab ........................................................................................ 117 Using Route Maps to Configuring BGP Local Preference Lab ..................................................... 121 Configuring BGP Multi-Exit Discriminator Lab............................................................................. 124 Configuring BGP Weight Lab ....................................................................................................... 128 Affects the BGP Routing By Path Prepend Lab ............................................................................ 131 Configuring BGP Routes Reflector Lab ........................................................................................ 134 Configuring BGP Confederation Lab ............................................................................................ 135 Using Route Tag to Store BGP AS-Path Lab ................................................................................. 139 Using Distribute-list to Filtering BGP Routing Lab ....................................................................... 143 Using Route-Map to Filtering BGP Routing Lab .......................................................................... 145 Using Prefix-List to Filtering BGP Routing Lab ............................................................................. 146 Configuring 802.1x Port-Based Authentication Lab .................................................................... 150 Routing Between VLANs and VTP Protocol Lab .......................................................................... 154 Configuring L2 & L3 EtherChannel with PAGP Lab ...................................................................... 163 Configuring L2 & L3 EtherChannel with LACP Lab ....................................................................... 169 Configuring Layer 3 Redundancy with HSRP Lab ......................................................................... 172 Configuring Layer 3 Redundancy with VRRP Lab......................................................................... 179. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(4) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Configuring Basic EIGRP Lab Topology. Lab Purpose: 1、Master EIGRP basic configuration. 2、Master EIGRP wild card bits configuration. 3、Master EIGRP auto summary feature, and learn how to disable auto summary. 4、Master EIGRP manually summary. Lab Steps:. 1、Config IP address for each router. 2、EIGRP AS number should be 50. 3、Enable EIGRP for the 3 routers.. R1#configure terminal R1(config-if)#router eigrp 50 R1(config-router)#network 172.16.0.0 R1(config-router)#network 10.1.1.0 R1(config-router)#network 10.1.2.0 R1(config-router)#network 10.1.3.0 R1(config-router)#network 10.1.4.0 R2#configure terminal R2(config-if)#router eigrp 50 R2(config-router)#network 172.16.0.0 R2(config-router)#network 131.131.0.0 R3#configure terminal R3(config-if)#router eigrp 50 R3(config-router)#network 172.16.0.0. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(5) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R3(config-router)#network 192.168.0.0 R3(config-router)#network 192.168.1.0 R3(config-router)#network 192.168.2.0 R3(config-router)#network 192.168.3.0 4、Check the EIGRP neighbour relationship on R2. R2#show ip eigrp 50 neighbors. IP-EIGRP neighbors for process 50 H Address. Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num 1 172.16.1.6 Se1/1 13 00:00:37 436 2616 0 2 0 172.16.1.1 Se1/0 13 00:02:34 736 4416 0 4 TIPS: H stands for neighbor sequence number, address is the neighbor address, Interface is the local interface which connect with neighbor.. 5、Check the routing table on R2. R2#show ip route 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.1.4/30 is directly connected, Serial1/1 D 172.16.0.0/16 is a summary, 00:06:33, Null0 C 172.16.1.0/30 is directly connected, Serial1/0 D 192.168.4.0/24 [90/2297856] via 172.16.1.6, 00:04:39, Serial1/1 D 10.0.0.0/8 [90/2297856] via 172.16.1.1, 00:06:34, Serial1/0 C 131.131.0.0/16 is directly connected, Loopback0 D 192.168.0.0/24 [90/2297856] via 172.16.1.6, 00:04:39, Serial1/1 D 192.168.1.0/24 [90/2297856] via 172.16.1.6, 00:04:39, Serial1/1 D 192.168.2.0/24 [90/2297856] via 172.16.1.6, 00:04:39, Serial1/1 D 192.168.3.0/24 [90/2297856] via 172.16.1.6, 00:04:39, Serial1/1. 6、 Check EIGRP routing table on R2. R2#show ip route eigrp 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks D 172.16.0.0/16 is a summary, 00:10:09, Null0 D 192.168.4.0/24 [90/2297856] via 172.16.1.6, 00:08:14, Serial1/1 D 10.0.0.0/8 [90/2297856] via 172.16.1.1, 00:10:10, Serial1/0 D 192.168.0.0/24 [90/2297856] via 172.16.1.6, 00:08:14, Serial1/1 D 192.168.1.0/24 [90/2297856] via 172.16.1.6, 00:08:14, Serial1/1 D 192.168.2.0/24 [90/2297856] via 172.16.1.6, 00:08:14, Serial1/1 D 192.168.3.0/24 [90/2297856] via 172.16.1.6, 00:08:14, Serial1/1. 7、There is a summary route 10.0.0.0/8 via 172.16.1.1 on R2 by auto summary feature, we could use "no auto-summary" command to disable it. R1(config) R1(config)#router eigrp 50 R1(config-router)#no auto-summary. R1(config-router)#exit Then check the eigrp route on R2 again.. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(6) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R2#show ip route eigrp 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks D 172.16.0.0/16 is a summary, 00:07:26, Null0 D 192.168.4.0/24 [90/2297856] via 172.16.1.6, 00:05:09, Serial1/1 10.0.0.0/24 is subnetted, 4 subnets. D D D D D D D D. 10.1.3.0 [90/2297856] via 172.16.1.1, 00:02:31, Serial1/0 10.1.2.0 [90/2297856] via 172.16.1.1, 00:02:31, Serial1/0 10.1.1.0 [90/2297856] via 172.16.1.1, 00:02:31, Serial1/0 10.1.4.0 [90/2297856] via 172.16.1.1, 00:02:31, Serial1/0 192.168.0.0/24 [90/2297856] via 172.16.1.6, 00:05:09, Serial1/1 192.168.1.0/24 [90/2297856] via 172.16.1.6, 00:05:09, Serial1/1 192.168.2.0/24 [90/2297856] via 172.16.1.6, 00:05:09, Serial1/1 192.168.3.0/24 [90/2297856] via 172.16.1.6, 00:05:09, Serial1/1. 8、Manually summarize network 192.168.0.0/24 192.168.1.0/24 192.168.2.0/24 192.168.3.0/24 to 1 item on R3. R3(config)#interface serail 1/0 R3(config-if)#ip summary eigrp 50 192.168.0.0 255.255.252.0 R3(config-if)#exit 9、Check routing table on R2 again. R2#show ip route eigrp ……… D 10.1.1.0 [90/2297856] via 172.16.1.1, 00:02:31, Serial1/0 D 10.1.4.0 [90/2297856] via 172.16.1.1, 00:02:31, Serial1/0 D 192.168.0.0/22 [90/2297856] via 172.16.1.6, 00:05:09, Serial1/1 ……… 10、Use wild card bits on R2's EIGRP configuration. R2(config)#no router eigrp 50 R2(config)#router eigrp 50 R2(config-router)#network 172.16.1.0 0.0.0.3 R2(config-router)#network 131.131.0.0 R2(config-router)#exit 11、This time there is only R1 in R2's neighbor table. R2#show ip eigrp neighbors IP-EIGRP neighbors for process 50 H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num 0 172.16.1.1 Se1/0 12 00:04:57 1510 5000 0 5 12、Check EIGRP routing table on R1. R1#show ip route eigrp 172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks D 172.16.0.0/16 is a summary, 00:02:55, Null0. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(7) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. 10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks D 10.0.0.0/8 is a summary, 00:02:55, Null0 D 131.131.0.0/16 [90/2297856] via 172.16.1.2, 00:00:06, Serial1/1 By www.ccieuniversity.com. Configuring Default-network for EIGRP Lab Topology. Lab Purpose: 1、Learn to use "ip default-network" command instead of " ip route 0.0.0.0 0.0.0.0 " in EIGRP network. Lab Steps:. 1、Finish the basic ip address configuration on all the routers. 2、Let's suppose R3 is the external router, so there is no EIGRP relationship between R2 and R3. What we need is a default route to the internal network on R3. R3(config)# R3(config)#ip route 0.0.0.0 0.0.0.0 192.168.10.1 R3(config)# 3、Enable EIGRP 50 on the internal routers. R1(config)#router eigrp 50 R1(config-router)#network 172.16.0.0 R1(config-router)#exit R5(config)#router eigrp 50. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(8) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R5(config-router)#network 172.16.0.0 R5(config-router)#exit R2(config)#router eigrp 50 R2(config-router)#network 172.16.0.0 R2(config-router)#exit 4、Check EIGRP neighbor relationship on R2. R2#show ip eigrp neighbors. IP-EIGRP neighbors for process 50 H Address 1 172.16.1.6 0 172.16.1.1. Interface (sec) Et1/2 Et1/0. Hold Uptime SRTT RTO Q Seq Type (ms) Cnt Num 11 00:00:54 1 3000 0 2 12 00:00:54 1 3000 0 2. 5、Add a default route on R2 to reach the external network. R2(config)#ip route 0.0.0.0 0.0.0.0 192.168.10.2 R2(config)# R2#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 4/43/92 ms R2# 6、R1 and R5 do not have route to external network, so they can not access external network. R1#show ip route. Gateway of last resort is not set. D C. 172.16.0.0/30 is subnetted, 2 subnets 172.16.1.4 [90/284160] via 172.16.1.2, 00:06:40, FastEthernet0/1 172.16.1.0 is directly connected, FastEthernet0/1. R1# R1#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R1#. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(9) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R5#show ip route. Gateway of last resort is not set. C D. 172.16.0.0/30 is subnetted, 2 subnets 172.16.1.4 is directly connected, Ethernet1/1 172.16.1.0 [90/307200] via 172.16.1.5, 00:12:15, Ethernet1/1. R5# R5#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R5# 7、One solution is to add a default route with the next hop R2 on both R1 and R5 . R1(config)#ip route 0.0.0.0 0.0.0.0 172.16.1.2. R1(config)#exit R1#show ip route. Gateway of last resort is 172.16.1.2 to network 0.0.0.0 172.16.0.0/30 is subnetted, 2 subnets D 172.16.1.4 [90/284160] via 172.16.1.2, 00:09:19, FastEthernet0/1 C 172.16.1.0 is directly connected, FastEthernet0/1 S* 0.0.0.0/0 [1/0] via 172.16.1.2. R1# R1#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 48/71/92 ms R1# R5(config)#ip route 0.0.0.0 0.0.0.0 172.16.1.5. R5(config)#exit R5# R5#show ip route. Gateway of last resort is 172.16.1.5 to network 0.0.0.0. C. 172.16.0.0/30 is subnetted, 2 subnets 172.16.1.4 is directly connected, Ethernet1/1. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(10) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. D 172.16.1.0 [90/307200] via 172.16.1.5, 00:13:57, Ethernet1/1 S* 0.0.0.0/0 [1/0] via 172.16.1.5. R5# R5#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 32/53/64 ms R5# 8、Another solution is to let R2 announce the external route to R1 and R5, this solution is better for large internal network, as it gets less configuration work. 9、So let's delete the default route on R1 and R5 first. R1(config)#no ip route 0.0.0.0 0.0.0.0 172.16.1.2. R1(config)#exit R1# R1#show ip route. Gateway of last resort is not set. D C. 172.16.0.0/30 is subnetted, 2 subnets 172.16.1.4 [90/284160] via 172.16.1.2, 00:19:02, FastEthernet0/1 172.16.1.0 is directly connected, FastEthernet0/1. R1# R1#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R1# R5(config)#no ip route 0.0.0.0 0.0.0.0 172.16.1.5. R5(config)#exit R5# R5#show ip route. Gateway of last resort is not set. C D. 172.16.0.0/30 is subnetted, 2 subnets 172.16.1.4 is directly connected, Ethernet1/1 172.16.1.0 [90/307200] via 172.16.1.5, 00:19:42, Ethernet1/1. R5#. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(11) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R5#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R5# 10、Then let's R2 announce the external network 192.168.10.0 to R1 and R5. R2(config)#router eigrp 50 R2(config-router)#network 192.168.10.0 R2(config-router)#exit R2(config)#ip default-network 192.168.10.0 R2(config)#exit R2#show ip route. Gateway of last resort is 192.168.10.2 to network 0.0.0.0 * 192.168.10.0/24 is variably subnetted, 2 subnets, 2 masks D* 192.168.10.0/24 is a summary, 00:00:53, Null0 C 192.168.10.0/30 is directly connected, Ethernet1/1 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.1.4/30 is directly connected, Ethernet1/2 D 172.16.0.0/16 is a summary, 00:22:22, Null0 C 172.16.1.0/30 is directly connected, Ethernet1/0 S* 0.0.0.0/0 [1/0] via 192.168.10.2. R2# 11、Check the routing table of R1 and R5 again, to make sure they have the external route. R1#show ip route. Gateway of last resort is 172.16.1.2 to network 192.168.10.0 D* 192.168.10.0/24 [90/284160] via 172.16.1.2, 00:02:03, FastEthernet0/1 172.16.0.0/30 is subnetted, 2 subnets D 172.16.1.4 [90/284160] via 172.16.1.2, 00:02:04, FastEthernet0/1 C 172.16.1.0 is directly connected, FastEthernet0/1. R1# R1#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 48/105/188 ms. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(12) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R1# R5#show ip route. Gateway of last resort is 172.16.1.5 to network 192.168.10.0 D* 192.168.10.0/24 [90/307200] via 172.16.1.5, 00:04:15, Ethernet1/1 172.16.0.0/30 is subnetted, 2 subnets C 172.16.1.4 is directly connected, Ethernet1/1 D 172.16.1.0 [90/307200] via 172.16.1.5, 00:04:19, Ethernet1/1 R5#. R5#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 76/87/96 ms By www.ccieuniversity.com. Manually Summarizing EIGRP Routes Lab Topology. Lab Purpose: 1、Understand the weakness of EIGRP auto summarization. 2、Master EIGRP manually summary configuration.. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(13) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Lab Steps:. 1、Finish basic ip configuration. 2、Enable EIGRP on all the routers, do not disable auto summary. 3、Ping on R2 to R1's 10.1.X.0/24 network and R4's 10.1.X.0/24 network, you will find to R1 is good, but to R4 fails. R2#ping 10.1.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/46/92 ms R2#ping 10.1.16.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.1.16.1, timeout is 2 seconds: U.U.U Success rate is 0 percent (0/5) R2# R2#ping 10.1.17.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.1.17.1, timeout is 2 seconds: U.U.U Success rate is 0 percent (0/5). 4、Check the routing table of R2. R2#show ip route Gateway of last resort is not set. D C C D D D D D. 172.16.0.0/30 is subnetted, 3 subnets 172.16.1.8 [90/307200] via 172.16.1.6, 00:06:25, Ethernet1/1 172.16.1.4 is directly connected, Ethernet1/1 172.16.1.0 is directly connected, Ethernet1/0 10.0.0.0/8 [90/409600] via 172.16.1.1, 00:06:09, Ethernet1/0 192.168.0.0/24 [90/409600] via 172.16.1.6, 00:06:25, Ethernet1/1 192.168.1.0/24 [90/409600] via 172.16.1.6, 00:06:25, Ethernet1/1 192.168.2.0/24 [90/409600] via 172.16.1.6, 00:06:25, Ethernet1/1 192.168.3.0/24 [90/409600] via 172.16.1.6, 00:06:25, Ethernet1/1. 5、Check the EIGRP topology database of R2. R2#show ip eigrp topology all-links IP-EIGRP Topology Table for AS(50)/ID(172.16.1.5) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - Reply status P 10.0.0.0/8, 1 successors, FD is 409600, serno 3 via 172.16.1.1 (409600/128256), Ethernet1/0 via 172.16.1.6 (435200/409600), Ethernet1/1 P 192.168.0.0/24, 1 successors, FD is 409600, serno 4 via 172.16.1.6 (409600/128256), Ethernet1/1. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(14) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. P 192.168.1.0/24, 1 successors, FD is 409600, serno 5 via 172.16.1.6 (409600/128256), Ethernet1/1 P 192.168.2.0/24, 1 successors, FD is 409600, serno 6 via 172.16.1.6 (409600/128256), Ethernet1/1 P 192.168.3.0/24, 1 successors, FD is 409600, serno 7 via 172.16.1.6 (409600/128256), Ethernet1/1 P 172.16.1.8/30, 1 successors, FD is 307200, serno 8 via 172.16.1.6 (307200/281600), Ethernet1/1 P 172.16.1.4/30, 1 successors, FD is 281600, serno 2 via Connected, Ethernet1/1 P 172.16.1.0/30, 1 successors, FD is 281600, serno 1 via Connected, Ethernet1/0. 6、The specific 10.1.X.0/24 networks on both R1 and R4 were automatically summarize to 10.0.0.0/8 before R2 receives. So R2 has two next hop to network 10.0.0.0/8, according to the topology database R1's (172.16.1.1) FD 409600 is better than R3's (172.16.1.6) FD 435200, then R2 will choose R1 172.16.1.1 as the next hop in the routing table, so ping traffic to the networks behind R4 will not going to R4. 7、To solve this issue, we need to use manual summary instead of auto summary. R1(config)#router eigrp 50 R1(config-router)#no auto-summary R1(config-router)#exit R1(config)# R1(config)#interface fastEthernet 0/1 R1(config-if)#ip summary-address eigrp 50 10.1.0.0 255.255.252.0 R1(config-if)#exit R1(config)#exit R4(config)#router eigrp 50 R4(config-router)#no auto-summary R4(config-router)#exit R4(config)# R4(config)#interface fastEthernet 0/0 R4(config-if)#ip summary-address eigrp 50 10.1.16.0 255.255.252.0 R4(config-if)#exit R4(config)#exit. 8、Check the routing table of R2. R2#show ip route Gateway of last resort is not set. D C C D D D D. 172.16.0.0/30 is subnetted, 3 subnets 172.16.1.8 [90/307200] via 172.16.1.6, 00:21:08, Ethernet1/1 172.16.1.4 is directly connected, Ethernet1/1 172.16.1.0 is directly connected, Ethernet1/0 10.0.0.0/22 is subnetted, 2 subnets 10.1.0.0 [90/409600] via 172.16.1.1, 00:03:13, Ethernet1/0 10.1.16.0 [90/435200] via 172.16.1.6, 00:01:02, Ethernet1/1 192.168.0.0/24 [90/409600] via 172.16.1.6, 00:21:08, Ethernet1/1 192.168.1.0/24 [90/409600] via 172.16.1.6, 00:21:08, Ethernet1/1. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(15) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. D D. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. 192.168.2.0/24 [90/409600] via 172.16.1.6, 00:21:08, Ethernet1/1 192.168.3.0/24 [90/409600] via 172.16.1.6, 00:21:08, Ethernet1/1. 9、Ping the networks behind R1 and R4 again. R2#ping 10.1.0.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.1.0.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 16/69/145 ms R2#ping 10.1.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 16/44/64 ms R2#ping 10.1.16.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.1.16.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 60/97/140 ms R2#ping 10.1.17.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.1.17.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 48/93/149 ms. 10、To decrease the size of routing table, we could manually summarize the networks from 192.168.0.0/24 to 192.168.3.0/24 behind R3. R3(config)#router eigrp 50 R3(config-router)#no auto-summary R3(config-router)#exit R3(config)# R3(config)#interface ethernet 1/1 R3(config-if)#ip summary-address eigrp 50 192.168.0.0 255.255.252.0 R3(config-if)#exit R3(config)# R3(config)#inter ethernet 1/0 R3(config-if)#ip summary-address eigrp 50 192.168.0.0 255.255.252.0 R3(config-if)#exit R3(config)#. 11、Check the routing table of R2 and R4. R4#show ip route Gateway of last resort is not set. C D. 172.16.0.0/30 is subnetted, 3 subnets 172.16.1.8 is directly connected, FastEthernet0/0 172.16.1.4 [90/284160] via 172.16.1.9, 00:02:41, FastEthernet0/0. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(16) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. D D C C C D C D. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. 172.16.1.0 [90/309760] via 172.16.1.9, 00:02:23, FastEthernet0/0 10.0.0.0/8 is variably subnetted, 6 subnets, 2 masks 10.1.0.0/22 [90/437760] via 172.16.1.9, 00:02:23, FastEthernet0/0 10.1.19.0/24 is directly connected, Loopback0 10.1.18.0/24 is directly connected, Loopback0 10.1.17.0/24 is directly connected, Loopback0 10.1.16.0/22 is a summary, 00:03:33, Null0 10.1.16.0/24 is directly connected, Loopback0 192.168.0.0/22 [90/156160] via 172.16.1.9, 00:02:41, FastEthernet0/0. R2#show ip route Gateway of last resort is not set. D C C D D D. 172.16.0.0/30 is subnetted, 3 subnets 172.16.1.8 [90/307200] via 172.16.1.6, 00:02:54, Ethernet1/1 172.16.1.4 is directly connected, Ethernet1/1 172.16.1.0 is directly connected, Ethernet1/0 10.0.0.0/22 is subnetted, 2 subnets 10.1.0.0 [90/409600] via 172.16.1.1, 00:16:13, Ethernet1/0 10.1.16.0 [90/435200] via 172.16.1.6, 00:02:54, Ethernet1/1 192.168.0.0/22 [90/409600] via 172.16.1.6, 00:02:54, Ethernet1/1. 12、Ping the networks behind R3 from R2 and R4. R2#ping 192.168.0.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.0.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/28/60 ms R4#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 24/37/48 ms. By www.ccieuniversity.com. Configuring EIGRP Unequal Cost Paths Lab Topology. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(17) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Lab Purpose: 1、Master EIGRP unequal cost load balance. 2、Master EIGRP metric modifying. 3、Master EIGRP AD、FD、FC、Successor、FS principal. Lab Steps:. 1、Finish basic ip configuration. 2、Enable EIGRP 50 on the 3 routers. 3、Check the routing table of R1. R1#show ip route. C D C D. 172.16.0.0/30 is subnetted, 3 subnets 172.16.1.8 is directly connected, FastEthernet0/0 172.16.1.4 [90/2172416] via 172.16.1.10, 00:00:11, FastEthernet0/0 172.16.1.0 is directly connected, Serial1/1 192.168.1.0/24 [90/156160] via 172.16.1.10, 00:00:11, FastEthernet0/0. 4、We can see there is only one way to network 192.168.1.0/24, to increase the capability of transmission, we need to use all the usable links. 5、If we want to use 172.16.1.2 as a unequal cost path, then we should make sure it is the FS of network 192.168.1.0/24. 6、Check the EIGRP 50 topology database we found that 172.16.1.2 is not in the 192.168.1.0/24 list, not a FS. R1#show ip eigrp 50 topology ……… P 192.168.1.0/24, 1 successors, FD is 156160 via 172.16.1.10 (156160/128256), FastEthernet0/0 P 172.16.1.8/30, 1 successors, FD is 28160 via Connected, FastEthernet0/0 ……… 7、Check the full EIGRP topology table we found that 172.16.1.2 could be the next hop of network 192.168.1.0/24, just not in use by the restriction of algorithm. R1#show ip eigrp 50 topology all-links. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(18) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. ……… P 192.168.1.0/24, 1 successors, FD is 156160, serno 6 via 172.16.1.10 (156160/128256), FastEthernet0/0 via 172.16.1.2 (2809856/2297856), Serial1/1 ……… 8、According to the FS formula. AD of secondary-best route < FD of best route(Successor) = Feasible Successor We could do the math. Distance from R2 to network 192.168.1.0/24 should less than 156160, then 172.16.1.2 would be the FS. 9、Let's change the EIGRP metrics of R2 to make it work as a FS of R1. R2#configure terminal R2(config)#interface serial 1/1 R2(config-if)#bandwidth 10000000 R2(config-if)#delay 10 R2(config)#exit 10、Check the topology table of R1, we see 130816 is less than 15160. R1#show ip eigrp topology all-links ……… P 192.168.1.0/24, 1 successors, FD is 156160, serno 6 via 172.16.1.10 (156160/128256), FastEthernet0/0 via 172.16.1.2 (2300416/130816), Serial1/1 ……… 11、This time we could enable unequal cost load balance, and give the right variance value. According to the variance formula. FD of FS route < FD of best route(Successor) * Varince So the math is 2300416 < 156160 * x x≈14.73 12、Let test 14 as the variance number. R1(config)#router eigrp 50 R1(config-router)#variance 14 R1(config-router)#exit R1(config)#exit R1#clear ip router * R1#show ip route ……… C 172.16.1.0 is directly connected, Serial1/1 D 192.168.1.0/24 [90/156160] via 172.16.1.10, 00:00:00, FastEthernet0/0 ……… Seems 14 is not enough. 13、Let's change it to 15.. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(19) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R1(config)#router eigrp 50 R1(config-router)#variance 15 R1(config-router)#exit R1(config)#exit R1#clear ip router * R1#show ip route ……… C 172.16.1.0 is directly connected, Serial1/1 D 192.168.1.0/24 [90/156160] via 172.16.1.10, 00:00:01, FastEthernet0/0 [90/2300416] via 172.16.1.2, 00:00:01, Serial1/1 This time both 172.16.1.10 and 172.16.1.2 are the next hop for network 192.168.1.0/24. By www.ccieuniversity.com. Configuring EIGRP Authentication Lab Topology. Lab Purpose: 1、Master EIGRP authentication principal. 2、Master EIGRP authentication configuration. Lab Steps:. 1、Finish basic ip configuration. 2、Enable EIGRP 50 on the 2 routers. 3、Check the routing tables of R1 and R2. R1#show ip route. 172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks 172.16.1.8/30 is directly connected, Serial1/1 172.16.0.0/16 is a summary, 00:00:37, Null0 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 10.1.1.0/24 is directly connected, Loopback0 D 10.0.0.0/8 is a summary, 00:00:37, Null0 D 192.168.1.0/24 [90/2297856] via 172.16.1.10, 00:00:09, Serial1/1 C D. R1#. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(20) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R2#show ip route. 172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks C 172.16.1.8/30 is directly connected, Serial1/0 D 172.16.0.0/16 is a summary, 00:00:53, Null0 D 10.0.0.0/8 [90/2297856] via 172.16.1.9, 00:00:51, Serial1/0 C 192.168.1.0/24 is directly connected, Loopback0 R2#. 4、Config EIGRP authentication on R1. R1#configure terminal R1(config)#key chain edurainbow R1(config-keychain)#key 1 R1(config-keychain-key)#key-string cisco R1(config-keychain-key)#exit R1(config-keychain)#exit R1(config)# R1(config)#interface serial 1/1 R1(config-if)#ip authentication key-chain eigrp 50 edurainbow R1(config-if)#ip authentication mode eigrp 50 md5 R1(config-if)#end R1(config)#. 5、"Use clear ip route *" command to speed up converge. 6、Then check the routing table of R1 and R2 again. R1#show ip route C 172.16.1.8/30 is directly connected, Serial1/1 D 172.16.0.0/16 is a summary, 00:00:16, Null0 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 10.1.1.0/24 is directly connected, Loopback0 D 10.0.0.0/8 is a summary, 00:00:16, Null0 R1# R2#show ip route ……… C 172.16.1.8/30 is directly connected, Serial1/0 D 172.16.0.0/16 is a summary, 00:02:53, Null0 C 192.168.1.0/24 is directly connected, Loopback0 R2#. This time the neighbor is down and EIGRP routes are missing. *Mar 14 15:35:27.343: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 50: Neighbor 172.16.1.9 (Serial1/0) is up: new adjacency *Mar 14 15:35:29.767: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 50: Neighbor 172.16.1.9 (Serial1/0) is down: Auth failure. 7 Check the neighbor table of R2 we found no item there. R2#show ip eigrp 50 neighbors IP-EIGRP neighbors for process 50. 8、Config EIGRP authentication on R2. R2#. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(21) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R2#configure terminal R2(config)#key chain edurainbow R2(config-keychain)#key 1 R2(config-keychain-key)#key-string cisco R2(config-keychain-key)#exit R2(config-keychain)#exit R2(config)# R2(config)#interface serial 1/0 R2(config-if)#ip authentication key-chain eigrp 50 edurainbow R2(config-if)#ip authentication mode eigrp 50 md5 R2(config-if)#exit R2(config)#exit R2(config)#. 9、Then we found neighbor is up again. *Mar 14 15:46:04.071: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 50: Neighbor 172.16.1.9 (Serial1/0) is up: new adjacency R2#show ip eigrp 50 neighbors IP-EIGRP neighbors for process 50 H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num 0 172.16.1.9 Se1/0 11 00:01:17 28 200 0 8. 10、Check the routing table of R1 and R2 we found the RIGRP routes are back. R1#show ip route 172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks C 172.16.1.8/30 is directly connected, Serial1/1 D 172.16.0.0/16 is a summary, 00:08:41, Null0 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 10.1.1.0/24 is directly connected, Loopback0 D 10.0.0.0/8 is a summary, 00:08:42, Null0 D 192.168.1.0/24 [90/2297856] via 172.16.1.10, 00:02:54, Serial1/1 R1# R2#show ip route 172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks C 172.16.1.8/30 is directly connected, Serial1/0 D 172.16.0.0/16 is a summary, 00:08:28, Null0 D 10.0.0.0/8 [90/2297856] via 172.16.1.9, 00:03:44, Serial1/0 C 192.168.1.0/24 is directly connected, Loopback0. By www.ccieuniversity.com. Understand EIGRP Query Lab Topology. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(22) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Lab Purpose: 1、Understand EIGRP route update mechanism. 2、Master EIGRP debug command.. 3、Master stub configuration. Lab Steps:. 1、Finish basic ip configuration. 2、Enable EIGRP 50 on the 3 routers. 3、Check EIGRP routing table of R1 R2 R3. R1#show ip route eigrp 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks D 172.16.1.4/30 [90/2681856] via 172.16.1.2, 00:01:20, Serial1/1 D 172.16.0.0/16 is a summary, 00:01:00, Null0 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks D 10.0.0.0/8 is a summary, 00:00:59, Null0. R1# R2#show ip route eigrp D 10.0.0.0/8 [90/2297856] via 172.16.1.1, 00:01:16, Serial1/0 D 192.168.1.0/24 [90/2172416] via 172.16.1.1, 00:01:21, Serial1/0 [90/2172416] via 172.16.1.6, 00:01:21, Serial1/1. R2# R3#sh ip route eigrp 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks D 172.16.0.0/16 is a summary, 00:01:30, Null0 D 172.16.1.0/30 [90/2681856] via 172.16.1.5, 00:01:36, Serial1/0 D 10.0.0.0/8 [90/156160] via 192.168.1.1, 00:01:30, FastEthernet0/0 R3# 4、Debug EIGRP on R2 to track update. R2#debug eigrp fsm EIGRP FSM Events/Actions debugging is on. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(23) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R2#debug eigrp packets query EIGRP Packets debugging is on (QUERY) 5、Shutdown loopback0 on R1 to simulate a network issue. R1(config)#interface loopback 0 R1(config-if)#shutdown 6、Check debug information on R2. *Mar 15 22:03:26.087: EIGRP: Received QUERY on Serial1/0 nbr 172.16.1.1 *Mar 15 22:03:26.091: AS 50, Flags 0x0, Seq 127/192 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Mar 15 22:03:26.095: DUAL: rcvquery: 10.1.1.0/24 via 172.16.1.1 metric 4294967295/4294967295, RD is 2297856 *Mar 15 22:03:26.095: DUAL: Find FS for dest 10.1.1.0/24. FD is 2297856, RD is 2297856 *Mar 15 22:03:26.099: DUAL: 172.16.1.1 metric 4294967295/4294967295 *Mar 15 22:03:26.099: DUAL: 172.16.1.6 metric 2300416/156160 found Dmin is 2300416 *Mar 15 22:03:26.099: DUAL: send REPLY(R1/n1) about 10.1.1.0/24 to 172.16.1.1 *Mar 15 22:03:26.099: DUAL: RT installed 10.1.1.0/24 via 172.16.1.6 *Mar 15 22:03:26.099: DUAL: Send update about 10.1.1.0/24. Reason: metric chg *Mar 15 22:03:26.099: DUAL: Send update about 10.1.1.0/24. Reason: new if *Mar 15 22:03:26.147: EIGRP: Received QUERY on Serial1/1 nbr 172.16.1.6 *Mar 15 22:03:26.151: AS 50, Flags 0x0, Seq 144/194 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Mar 15 22:03:26.155: DUAL: rcvquery: 10.1.1.0/24 via 172.16.1.6 metric 4294967295/4294967295, RD is 2300416 *Mar 15 22:03:26.155: DUAL: Find FS for dest 10.1.1.0/24. FD is 2297856, RD is 2300416 *Mar 15 22:03:26.159: DUAL: 172.16.1.6 metric 4294967295/4294967295 *Mar 15 22:03:26.159: DUAL: 172.16.1.1 metric 4294967295/4294967295 not found Dmin is 4294967295 *Mar 15 22:03:26.159: DUAL: Peer total/stub 2/0 template/full-stub 2/0 *Mar 15 22:03:26.159: DUAL: Dest 10.1.1.0/24 entering active state. *Mar 15 22:03:26.159: DUAL: Set reply-status table. Count is 2. *Mar 15 22:03:26.159: DUAL: Not doing split horizon *Mar 15 22:03:26.159: DUAL: Going from state 1 to state 3 *Mar 15 22:03:26.171: EIGRP: Enqueueing QUERY on Serial1/1 iidbQ un/rely 0/1 serno 148-148. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(24) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. *Mar 15 22:03:26.175: EIGRP: Enqueueing QUERY on Serial1/1 nbr 172.16.1.6 iidbQ un/rely 0/0 peerQ un/rely 0/0 serno 148-148 *Mar 15 22:03:26.179: EIGRP: Sending QUERY on Serial1/1 nbr 172.16.1.6 *Mar 15 22:03:26.179: AS 50, Flags 0x0, Seq 195/144 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 148-148 *Mar 15 22:03:26.199: EIGRP: Enqueueing QUERY on Serial1/0 iidbQ un/rely 0/1 serno 148-148 *Mar 15 22:03:26.203: EIGRP: Enqueueing QUERY on Serial1/0 nbr 172.16.1.1 iidbQ un/rely 0/0 peerQ un/rely 0/0 serno 148-148 *Mar 15 22:03:26.207: EIGRP: Sending QUERY on Serial1/0 nbr 172.16.1.1 *Mar 15 22:03:26.207: AS 50, Flags 0x0, Seq 196/127 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 148-148 *Mar 15 22:03:26.215: DUAL: rcvreply: 10.1.1.0/24 via 172.16.1.6 metric 4294967295/4294967295 *Mar 15 22:03:26.219: DUAL: reply count is 2 *Mar 15 22:03:26.219: DUAL: Clearing handle 1, count now 1 *Mar 15 22:03:26.267: DUAL: rcvreply: 10.1.1.0/24 via 172.16.1.1 metric 4294967295/4294967295 *Mar 15 22:03:26.267: DUAL: reply count is 1 *Mar 15 22:03:26.267: DUAL: Clearing handle 0, count now 0 *Mar 15 22:03:26.271: DUAL: Freeing reply status table *Mar 15 22:03:26.271: DUAL: Find FS for dest 10.1.1.0/24. FD is 4294967295, RD is 4294967295 found ……… According to the debug output there are 4 query packets and 4 respond packets, thing if there are hundreds of routers the query will be huge. We could use manually summarize and stub feature to restrict the query scope. 7、Manually summary on R1 and R3. R1(config)#interface loopback 0 R1(config-if)#no shutdown R1(config)#interface serial 1/1 R1(config-if)#ip summary-address eigrp 50 10.0.0.0 255.0.0.0 R3(config)#interface serial 1/0 R3(config-if)#ip summary-address eigrp 50 10.0.0.0 255.0.0.0 8、Check routing table of R2 and R3 again to make sure they have learned the summary route. R2#show ip route eigrp 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(25) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. D. 172.16.0.0/16 [90/2684416] via 172.16.1.1, 00:15:27, Serial1/0 10.0.0.0/24 is subnetted, 1 subnets D 10.1.1.0 [90/2297856] via 172.16.1.1, 00:00:27, Serial1/0 D 192.168.1.0/24 [90/2172416] via 172.16.1.1, 00:15:09, Serial1/0 [90/2172416] via 172.16.1.6, 00:15:09, Serial1/1 R2#ping 10.1.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 48/78/104 ms R2# R3>show ip route eigrp 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks D 172.16.0.0/16 is a summary, 00:15:43, Null0 D 172.16.1.0/30 [90/2172416] via 192.168.1.1, 00:15:43, FastEthernet0/0 10.0.0.0/24 is subnetted, 1 subnets D 10.1.1.0 [90/156160] via 192.168.1.1, 00:00:57, FastEthernet0/0 R3> R3>ping 10.1.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 24/62/96 ms R3> 9、Shutdown loopback0 on R1 again to check the debug message on R2. *Mar 15 22:11:17.867: EIGRP: Received QUERY on Serial1/0 nbr 172.16.1.1 *Mar 15 22:11:17.871: AS 50, Flags 0x0, Seq 135/207 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Mar 15 22:11:17.875: DUAL: dest(10.1.1.0/24) not active *Mar 15 22:11:17.875: DUAL: rcvquery: 10.1.1.0/24 via 172.16.1.1 metric 4294967295/4294967295, RD is 4294967295 *Mar 15 22:11:17.879: DUAL: send REPLY(R1/n1) about 10.1.1.0/24 to 172.16.1.1 *Mar 15 22:11:17.879: DUAL: rcvquery: 10.0.0.0/8 via 172.16.1.1 metric 4294967295/4294967295, RD is 2297856. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(26) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. *Mar 15 22:11:17.883: DUAL: Find FS for dest 10.0.0.0/8. FD is 2297856, RD is 2297856 *Mar 15 22:11:17.883: DUAL: 172.16.1.1 metric 4294967295/4294967295 *Mar 15 22:11:17.887: DUAL: 172.16.1.6 metric 2300416/156160 found Dmin is 2300416 *Mar 15 22:11:17.887: DUAL: send REPLY(R1/n1) about 10.0.0.0/8 to 172.16.1.1 *Mar 15 22:11:17.891: DUAL: RT installed 10.0.0.0/8 via 172.16.1.6 *Mar 15 22:11:17.895: DUAL: Send update about 10.0.0.0/8. Reason: metric chg *Mar 15 22:11:17.895: DUAL: Send update about 10.0.0.0/8. Reason: new if *Mar 15 22:11:17.899: EIGRP: Received QUERY on Serial1/1 nbr 172.16.1.6 *Mar 15 22:11:17.903: AS 50, Flags 0x0, Seq 154/208 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Mar 15 22:11:17.907: DUAL: dest(10.1.1.0/24) not active *Mar 15 22:11:17.907: DUAL: rcvquery: 10.1.1.0/24 via 172.16.1.6 metric 4294967295/4294967295, RD is 4294967295 *Mar 15 22:11:17.911: DUAL: send REPLY(R1/n1) about 10.1.1.0/24 to 172.16.1.6 *Mar 15 22:11:17.951: DUAL: Removing dest 10.1.1.0/24, nexthop 172.16.1.1 *Mar 15 22:11:17.955: DUAL: Removing dest 10.0.0.0/8, nexthop 172.16.1.1 *Mar 15 22:11:18.015: DUAL: Removing dest 10.1.1.0/24, nexthop 172.16.1.6 *Mar 15 22:11:18.015: DUAL: No routes. Flushing dest 10.1.1.0/24 *Mar 15 22:11:18.019: EIGRP: Received QUERY on Serial1/1 nbr 172.16.1.6 *Mar 15 22:11:18.023: AS 50, Flags 0x0, Seq 157/212 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Mar 15 22:11:18.027: DUAL: rcvquery: 10.0.0.0/8 via 172.16.1.6 metric 4294967295/4294967295, RD is 2300416 *Mar 15 22:11:18.027: DUAL: Find FS for dest 10.0.0.0/8. FD is 2297856, RD is 2300416 *Mar 15 22:11:18.031: DUAL: 172.16.1.6 metric 4294967295/4294967295 not found Dmin is 4294967295 *Mar 15 22:11:18.031: DUAL: Peer total/stub 2/0 template/full-stub 2/0 *Mar 15 22:11:18.035: DUAL: Dest 10.0.0.0/8 entering active state. *Mar 15 22:11:18.035: DUAL: Set reply-status table. Count is 1. *Mar 15 22:11:18.039: DUAL: Doing split horizon on Serial1/1 *Mar 15 22:11:18.039: DUAL: Going from state 1 to state 3. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(27) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. *Mar 15 22:11:18.047: EIGRP: Enqueueing QUERY on Serial1/1 iidbQ un/rely 0/1 serno 161-161 *Mar 15 22:11:18.051: EIGRP: Enqueueing QUERY on Serial1/0 iidbQ un/rely 0/1 serno 161-161 *Mar 15 22:11:18.051: EIGRP: Enqueueing QUERY on Serial1/1 nbr 172.16.1.6 iidbQ un/rely 0/0 peerQ un/rely 0/0 serno 161-161 *Mar 15 22:11:18.055: EIGRP: Enqueueing QUERY on Serial1/0 nbr 172.16.1.1 iidbQ un/rely 0/0 peerQ un/rely 0/0 serno 161-161 *Mar 15 22:11:18.063: EIGRP: Sending QUERY on Serial1/0 nbr 172.16.1.1 *Mar 15 22:11:18.063: AS 50, Flags 0x0, Seq 214/135 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 161-161 *Mar 15 22:11:18.119: DUAL: dest(10.0.0.0/8) active *Mar 15 22:11:18.119: DUAL: rcvreply: 10.0.0.0/8 via 172.16.1.1 metric 4294967295/4294967295 *Mar 15 22:11:18.123: DUAL: reply count is 1 *Mar 15 22:11:18.123: DUAL: Clearing handle 0, count now 0 *Mar 15 22:11:18.123: DUAL: Freeing reply status table *Mar 15 22:11:18.123: DUAL: Find FS for dest 10.0.0.0/8. FD is 4294967295, RD is 4294967295 found *Mar 15 22:11:18.127: DUAL: send REPLY(R1/n1) about 10.0.0.0/8 to 172.16.1.6 *Mar 15 22:11:18.131: DUAL: Removing dest 10.0.0.0/8, nexthop 172.16.1.1 *Mar 15 22:11:18.131: DUAL: Going from state 3 to state 1 *Mar 15 22:11:18.171: DUAL: Removing dest 10.0.0.0/8, nexthop 172.16.1.6 *Mar 15 22:11:18.171: DUAL: No routes. Flushing dest 10.0.0.0/8 Obviously query packets for network 10.1.1.0/24 decrease to 2 this time. 10、To deeply solve the issue, we enable EIGRP stub feature on R2 to stop query packets for network 10.1.1.0/24. R2(config)#router eigrp 50 R2(config-router)#eigrp stub 11、Check the neighbor table on R1 to see the stub feature. R1#show ip eigrp neighbors detail IP-EIGRP neighbors for process 50 H Address Interface Hold Uptime Seq (sec) Num. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. SRTT (ms). RTO. Q Cnt. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(28) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. 0 172.16.1.2 Se1/1 12 00:01:01 220 Version 12.3/1.2, Retrans: 0, Retries: 0 Stub Peer Advertising ( CONNECTED SUMMARY ) Routes Suppressing queries 1 192.168.1.2 Fa0/0 14 01:09:11 159 Version 12.3/1.2, Retrans: 1, Retries: 0. 216. 1296. 0. 75. 450. 0. 12、Shutdown loopback0 of R1 again to see the debug output of R2. *Mar 15 22:22:31.371: DUAL: rcvupdate: 10.0.0.0/8 via 172.16.1.1 metric 4294967295/4294967295 *Mar 15 22:22:31.371: DUAL: Find FS for dest 10.0.0.0/8. FD is 2297856, RD is 2297856 *Mar 15 22:22:31.375: DUAL: 172.16.1.1 metric 4294967295/4294967295 *Mar 15 22:22:31.375: DUAL: 172.16.1.6 metric 2300416/156160 found Dmin is 2300416 *Mar 15 22:22:31.379: DUAL: Removing dest 10.0.0.0/8, nexthop 172.16.1.1 *Mar 15 22:22:31.383: DUAL: RT installed 10.0.0.0/8 via 172.16.1.6 *Mar 15 22:22:31.383: DUAL: Send update about 10.0.0.0/8. Reason: metric chg *Mar 15 22:22:31.387: DUAL: Send update about 10.0.0.0/8. Reason: new if *Mar 15 22:22:31.587: DUAL: rcvupdate: 10.0.0.0/8 via 172.16.1.6 metric 4294967295/4294967295 *Mar 15 22:22:31.587: DUAL: Find FS for dest 10.0.0.0/8. FD is 2297856, RD is 2300416 *Mar 15 22:22:31.591: DUAL: 172.16.1.6 metric 4294967295/4294967295 not found Dmin is 4294967295 *Mar 15 22:22:31.591: DUAL: Peer total/stub 2/0 template/full-stub 2/0 *Mar 15 22:22:31.595: DUAL: Dest 10.0.0.0/8 entering active state. *Mar 15 22:22:31.595: DUAL: Set reply-status table. Count is 2. *Mar 15 22:22:31.595: DUAL: Not doing split horizon *Mar 15 22:22:31.607: EIGRP: Enqueueing QUERY on Serial1/1 iidbQ un/rely 0/1 serno 169-169 *Mar 15 22:22:31.607: EIGRP: Enqueueing QUERY on Serial1/0 iidbQ un/rely 0/1 serno 169-169 *Mar 15 22:22:31.611: EIGRP: Enqueueing QUERY on Serial1/1 nbr 172.16.1.6 iidbQ un/rely 0/0 peerQ un/rely 0/0 serno 169-169 *Mar 15 22:22:31.615: EIGRP: Enqueueing QUERY on Serial1/0 nbr 172.16.1.1 iidbQ un/rely 0/0 peerQ un/rely 0/0 serno 169-169. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(29) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. *Mar 15 22:22:31.619: EIGRP: Sending QUERY on Serial1/1 nbr 172.16.1.6 *Mar 15 22:22:31.623: AS 50, Flags 0x0, Seq 226/169 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 169-169 *Mar 15 22:22:31.627: EIGRP: Sending QUERY on Serial1/0 nbr 172.16.1.1 *Mar 15 22:22:31.627: AS 50, Flags 0x0, Seq 227/148 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 169-169 *Mar 15 22:22:31.711: DUAL: dest(10.0.0.0/8) active *Mar 15 22:22:31.715: DUAL: rcvreply: 10.0.0.0/8 via 172.16.1.1 metric 4294967295/4294967295 *Mar 15 22:22:31.715: DUAL: reply count is 2 ………… This time R2 will not receive any query packet for network 10.1.1.0/24 By www.ccieuniversity.com. Configuring Basic Multi Area OSPF and Area Summary Lab Topology. Lab Purpose: 1、Master OSPF multi area configuration. 2、Distinguish routes from different areas. 3、Master OSPF route summary configuration. 4、Master OSPF basic configuration. Lab Steps:. 1、Finish basic ip configuration. 2、Enable OSPF 1 on R1, assign interfaces to the relevant area according to the topology. R1(config)#router ospf 1 R1(config-router)#network 10.1.2.0 0.0.0.255 area 1 R1(config-router)#network 10.1.1.0 0.0.0.255 area 1 R1(config-router)#network 192.168.1.0 0.0.0.3 area 1. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(30) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R1(config-router)#exit 3、Enable OSPF 1 on R2, assign interfaces to relevant area according to the topology. R2(config)#router ospf 1 R2(config-router)#network 192.168.1.0 0.0.0.3 area 1 R2(config-router)#network 192.168.1.4 0.0.0.3 area 0 R2(config)#exit 4、Refer to R1 and R2, finish the OSPF configuration on R3 and R4. 5、Check OSPF neighbor relationship on R2. R2#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 192.168.1.9 1 FULL/ 00:00:39 192.168.1.6 Serial1/1 10.1.2.1 1 FULL/ 00:00:37 192.168.1.1 Serial1/0. 6、Check the routing table of R1 to see OSPF route from different areas. R1#show ip route. Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area. N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP. ………… Gateway of last resort is not set 172.16.0.0/32 is subnetted, 2 subnets O IA 172.16.1.1 [110/193] via 192.168.1.2, 00:02:23, Serial1/1 O IA 172.16.2.1 [110/193] via 192.168.1.2, 00:02:23, Serial1/1 10.0.0.0/24 is subnetted, 2 subnets C 10.1.2.0 is directly connected, Loopback1 C 10.1.1.0 is directly connected, Loopback0 192.168.1.0/30 is subnetted, 3 subnets O IA 192.168.1.8 [110/192] via 192.168.1.2, 00:02:58, Serial1/1 C 192.168.1.0 is directly connected, Serial1/1 O IA 192.168.1.4 [110/128] via 192.168.1.2, 00:05:06, Serial1/1. 7、Check OSPF link state database of R1. R1#show ip ospf database OSPF Router with ID (10.1.2.1) (Process ID 1) Router Link States (Area 1) Link ID ADV Router Age Seq# Checksum Link count 10.1.2.1 10.1.2.1 492 0x80000004 0x00C83F 4 192.168.1.5 192.168.1.5 486 0x80000003 0x002BB5 2. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(31) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Summary Net Link States (Area 1) Link ID ADV Router Age 172.16.1.1 192.168.1.5 315 172.16.2.1 192.168.1.5 315 192.168.1.4 192.168.1.5 479 192.168.1.8 192.168.1.5 350. Seq# Checksum 0x80000001 0x00CCC0 0x80000001 0x00C1CA 0x80000001 0x00E33E 0x80000001 0x003E9F. 8、Use ping to test the connectivity on R1. R1#ping 172.16.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 216/240/288 ms R1# 9、Check the routing table and OSPF link state database on R4. R4#show ip route 172.16.0.0/24 is subnetted, 2 subnets C 172.16.1.0 is directly connected, Loopback0 C 172.16.2.0 is directly connected, Loopback1 10.0.0.0/24 is subnetted, 2 subnets O IA 10.1.2.0 [110/193] via 192.168.1.9, 00:15:14, Serial1/0 O IA 10.1.1.0 [110/193] via 192.168.1.9, 00:15:14, Serial1/0 192.168.1.0/30 is subnetted, 3 subnets C 192.168.1.8 is directly connected, Serial1/0 O IA 192.168.1.0 [110/192] via 192.168.1.9, 00:15:14, Serial1/0 O IA 192.168.1.4 [110/128] via 192.168.1.9, 00:15:14, Serial1/0. R4# R4#show ip ospf database OSPF Router with ID (172.16.2.1) (Process ID 1) Router Link States (Area 2) Link ID ADV Router Age Seq# Checksum Link count 172.16.2.1 172.16.2.1 1223 0x80000004 0x00B871 4 192.168.1.9 192.168.1.9 1224 0x80000002 0x00EA2E 2 Summary Net Link States (Area 2) Link ID ADV Router Age Seq# Checksum 10.1.1.0 192.168.1.9 2 0x80000001 0x00B586 10.1.2.0 192.168.1.9 2 0x80000001 0x00AA90 192.168.1.0 192.168.1.9 1265 0x80000001 0x00766B. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(32) www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. 192.168.1.4. 192.168.1.9. 1265. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. 0x80000001 0x00CB52. As you see all the area 1 specific routes are in the routing table of R4, we could do something to make it smaller. 10、Config OSPF area summary on R2. R2(config)#router ospf 1 R2(config-router)#area 1 range 10.1.0.0 255.255.0.0 R2(config-router)#exit R2(config)#exit 11、Check the routing table and OSPF database on R4 again. R4#show ip route 172.16.0.0/24 is subnetted, 2 subnets C 172.16.1.0 is directly connected, Loopback0 C 172.16.2.0 is directly connected, Loopback1 10.0.0.0/16 is subnetted, 1 subnets O IA 10.1.0.0 [110/193] via 192.168.1.9, 00:00:32, Serial1/0 192.168.1.0/30 is subnetted, 3 subnets C 192.168.1.8 is directly connected, Serial1/0 O IA 192.168.1.0 [110/192] via 192.168.1.9, 00:18:36, Serial1/0 O IA 192.168.1.4 [110/128] via 192.168.1.9, 00:18:36, Serial1/0. R4# R4#show ip ospf database OSPF Router with ID (172.16.2.1) (Process ID 1) Router Link States (Area 2) Link ID ADV Router Age 172.16.2.1 172.16.2.1 6 192.168.1.9 192.168.1.9 13. Seq# Checksum Link count 0x80000005 0x00B672 4 0x80000004 0x00E630 2. Summary Net Link States (Area 2) Link ID ADV Router Age Seq# Checksum 10.1.0.0 192.168.1.9 29 0x80000001 0x00C07C 192.168.1.0 192.168.1.9 1325 0x80000001 0x00766B 192.168.1.4 192.168.1.9 1325 0x80000001 0x00CB52. By www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(33) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Configuring OSPF in NBMA Lab Topology. Lab Purpose: 1、Master OSPF in NBMA network configuration. 2、Master OSPF interface network type configuration. 3、Master OSPF interface priority configuration. Lab Steps: 1、Finish basic ip configuration. 2、Enable OSPF on all routers and use default network type. R1(config)#interface loopback 0 R1(config-if)#ip address 172.16.1.1 255.255.255.0 R1(config-if)#ip ospf network point-to-point. R1(config-if)#exit R1(config)# R1(config)#interface serial 1/2. R1(config-if)#ip add 192.168.1.1 255.255.255.0 R1(config-if)#encapsulation frame-relay. R1(config-if)#no frame-relay inverse-arp R1(config-if)#frame-relay map ip 192.168.1.2 102 broadcast. R1(config-if)#frame-relay map ip 192.168.1.3 103 broadcast R1(config-if)#exit R1(config)# R1(config)#router ospf 1 R1(config-router)#network 192.168.1.0 0.0.0.255 area 0 R1(config-router)#network 172.16.1.0 0.0.0.255 area 0 R1(config-router)#exit R1(config)# R2(config)#interface loopback 0 R2(config-if)#ip address 172.16.3.1 255.255.255.0 R2(config-if)#ip ospf network point-to-point R2(config-if)#exit R2(config)#. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(34) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R2(config)#interface serial 1/2 R2(config-if)#encapsulation frame-relay R2(config-if)#ip address 192.168.1.2 255.255.255.0 R2(config-if)#no frame-relay inverse-arp R2(config-if)#frame-relay map ip 192.168.1.1 201 broadcast R2(config-if)#no shutdown R2(config-if)#exit R2(config)# R2(config)#router ospf 1 R2(config-router)#network 172.16.3.0 0.0.0.255 area 0 R2(config-router)#network 192.168.1.0 0.0.0.255 area 0 R2(config-router)#exit R2(config)# R3(config)#interface loopback 0 R3(config-if)#ip address 172.16.4.1 255.255.255.0 R3(config-if)#ip ospf network point-to-point R3(config-if)#exit R3(config)# R3(config)#interface serial 1/2 R3(config-if)#ip address 192.168.1.3 255.255.255.0 R3(config-if)#encapsulation frame-relay R3(config-if)#no frame-relay inverse-arp R3(config-if)#frame-relay map ip 192.168.1.1 301 broadcast R3(config-if)#no shutdown R3(config-if)#exit R3(config)# R3(config)#router ospf 1 R3(config-router)#network 172.16.4.0 0.0.0.255 area 0 R3(config-router)#network 192.168.1.0 0.0.0.255 area 0 R3(config-router)#exit R3(config)# 3、Check the OSPF neighbor table on R1 we can see no neighbor is up. R1#show ip ospf neighbor 4、Check Serial 1/2 OSPF information on R1. R1#show ip ospf interface serial 1/2 Serial1/2 is up, line protocol is up Internet Address 192.168.1.1/24, Area 0 Process ID 1, Router ID 172.16.1.1, Network Type NON_BROADCAST, Cost: 64 Transmit Delay is 1 sec, State DR, Priority 1 Designated Router (ID) 172.16.1.1, Interface address 192.168.1.1. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(35) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. No backup designated router on this network Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5 oob-resync timeout 120 Hello due in 00:00:15 Index 1/1, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 0, maximum is 0 Last flood scan time is 0 msec, maximum is 0 msec Neighbor Count is 0, Adjacent neighbor count is 0 Suppress hello for 0 neighbor(s) 5、According to the above information we could see the default OSPF network type for NBMA is NON_BROADCAST, So OSPF will not send out its hello packet which based on multi-cast. 6、One solution is to manually assign OSPF neighbor. R1(config)#router ospf 1 R1(config-router)#neighbor 192.168.1.2 R1(config-router)#neighbor 192.168.1.3 R2(config)#router ospf 1 R2(config-router)#neighbor 192.168.1.1 R3(config)#router ospf 1 R3(config-router)#neighbor 192.168.1.1 7、Then we can see the neighbors are up. *Jun 18 15:36:16.743: %OSPF-5-ADJCHG: Process 1, Nbr 172.16.4.1 on Serial1/2 from LOADING to FULL, Loading Done *Jun 18 15:36:16.747: %OSPF-5-ADJCHG: Process 1, Nbr 172.16.3.1 on Serial1/2 from LOADING to FULL, Loading Don 8、Check the OSPF neighbor table on R1. R1#show ip ospf neighbor Neighbor ID 172.16.3.1 172.16.4.1. Pri State Dead Time Address Interface 1 FULL/DROTHER 00:01:31 192.168.1.2 Serial1/2 1 FULL/DR 00:01:57 192.168.1.3 Serial1/2. 9、Beside manually allocate, we could also change the OSPF network type to build the neighbor relationship. Let's first remove the manually allocate configuration, then change the OSPF network type to broadcast. R1(config)#router ospf 1. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(36) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R1(config-router)#no neighbor 192.168.1.2 R1(config-router)#no neighbor 192.168.1.3 R2(config)#router ospf 1 R2(config-router)#no neighbor 192.168.1.1 R3(config)#router ospf 1 R3(config-router)#no neighbor 192.168.1.1 R1(config)#interface serial 1/2 R1(config-if)#ip ospf network broadcast R1(config-if)#exit R2(config)#interface serial 1/2 R2(config-if)#ip ospf network broadcast R2(config-if)#exit R3(config)#interface serial 1/2 R3(config-if)#ip ospf network broadcast R3(config-if)#exit 10、Check serial 1/2 OSPF information on R1. R1#show ip ospf interface serial 1/2 Serial1/2 is up, line protocol is up Internet Address 192.168.1.1/24, Area 0 Process ID 1, Router ID 172.16.1.1, Network Type BROADCAST, Cost: 64 Transmit Delay is 1 sec, State DR, Priority 1 ………… Network type is BROADCAST now. 11、Check OSPF neighbor table on R1 R2 R3. R1#show ip ospf neighbor Neighbor ID 172.16.3.1 172.16.4.1 R1#. Pri State Dead Time Address Interface 1 FULL/DROTHER 00:00:32 192.168.1.2 Serial1/2 1 FULL/DR 00:00:33 192.168.1.3 Serial1/2. R2#show ip ospf neighbor Neighbor ID 172.16.1.1 R2#. Pri State 1 FULL/BDR. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Dead Time Address Interface 00:00:30 192.168.1.1 Serial1/2. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(37) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R3#show ip ospf neighbor Neighbor ID 172.16.1.1 R3#. Pri State 1 FULL/BDR. Dead Time Address Interface 00:00:39 192.168.1.1 Serial1/2. 12、Look at the above OSPF neighbor table we can see: R1 considers 172.16.4.1(R3) as DR, 172.16.3.1(R2) as DROTHER, itself as BDR. R2 considers 172.16.1.1(R1) as BDR, itself as DR. R3 considers 172.16.1.1(R1) as BDR, itself as DR.. As the frame-relay network is not full mesh, it has only two PVC one is between R1 and R2, the other is between R1 and R3, to make sure everyone will receive LSU (LAS update), R1 should be the DR. 13、Change interface OSPF priority to 0 on R2 and R3, so neither R2 nor R3 will participate in DR/BDR selection. R2(config)#interface serial 1/2 R2(config-if)#ip ospf priority 0 R2(config-if)#exit R2(config)# R3(config)#interface serial 1/2 R3(config-if)#ip ospf priority 0 R3(config-if)#exit 14、Check OSPF neighbor table on R1 R2 R3, we can see R1 is always the DR. R1#show ip ospf neighbor Neighbor ID 172.16.3.1 172.16.4.1 R1#. Pri State Dead Time Address Interface 0 FULL/DROTHER 00:00:38 192.168.1.2 Serial1/2 0 FULL/DROTHER 00:00:39 192.168.1.3 Serial1/2. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(38) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. R2#show ip ospf neighbor Neighbor ID 172.16.1.1 R2#. Pri State 1 FULL/DR. Dead Time Address Interface 00:00:31 192.168.1.1 Serial1/2. R3#show ip ospf neighbor Neighbor ID 172.16.1.1. Pri State 1 FULL/DR. Dead Time Address Interface 00:00:38 192.168.1.1 Serial1/2. 15、We could also change the OSPF network type to P2P, then there will be no DR/BDR selection. OSPF network type diagram.. By www.ccieuniversity.com. Configuring OSPF Authentication Lab Topology. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

(39) Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. www.ccieuniversity.com. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Lab Purpose: 1、Master OSPF interface and area authentication configuration. Lab Steps: 1、Master OSPF in NBMA network configuration. 2、Finish OSPF basic configuration. 3、 Check the routing table of R1 and R2 R1#show ip route Gateway of last resort is not set 172.16.0.0/24 is subnetted, 2 subnets O IA 172.16.1.0 [110/193] via 192.168.1.2, 00:01:02, Serial1/1 O IA 172.16.2.0 [110/193] via 192.168.1.2, 00:01:02, Serial1/1 10.0.0.0/24 is subnetted, 2 subnets C 10.1.2.0 is directly connected, Loopback0 C 10.1.1.0 is directly connected, Loopback1 192.168.1.0/30 is subnetted, 3 subnets O IA 192.168.1.8 [110/192] via 192.168.1.2, 00:01:12, Serial1/1 C 192.168.1.0 is directly connected, Serial1/1 O IA 192.168.1.4 [110/128] via 192.168.1.2, 00:05:47, Serial1/1 R2#show ip route Gateway of last resort is not set 172.16.0.0/24 is subnetted, 2 subnets O IA 172.16.1.0 [110/129] via 192.168.1.6, 00:09:16, Serial1/1 O IA 172.16.2.0 [110/129] via 192.168.1.6, 00:09:16, Serial1/1 10.0.0.0/24 is subnetted, 2 subnets O 10.1.2.0 [110/65] via 192.168.1.1, 00:14:00, Serial1/0 O 10.1.1.0 [110/65] via 192.168.1.1, 00:14:00, Serial1/0 192.168.1.0/30 is subnetted, 3 subnets O IA 192.168.1.8 [110/128] via 192.168.1.6, 00:09:26, Serial1/1 C 192.168.1.0 is directly connected, Serial1/0. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/. Time limited special offer with 15% discount Your discount code PD1010 http://www.ccieuniversity.com/sitemap/.

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Routing Between VLANs and VTP Protocol Lab Configuring L2 & L3 EtherChannel with PAGP Lab Configuring Layer 3 Redundancy with HSRP Lab

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