PPP is a switched (dial-up) protocol used with TCP/IP networks. All RSF functions can be used over PPP connections with the following limitations:
● RSF release 6.2 or later should be installed on the machines at both ends of the connection.
● PPP requires an asynchronous modem. This is in contrast to the old ECS modems which were configured for synchronous SDLC communications. Internal modems shipped with newer iSeries machines can be used without change. Older, synchronous modems must be reconfigured for asynchronous communications.
● RSF creates all of the necessary line, controller and device descriptions, as well as the PPP profiles. You just need to tell RSF how to establish contact between the machines.
On the server (answering) machine:
Change RSF Defaults (CHGRSFDFT)
Type choices, press Enter.
PPP server info: Line description . . . RSFSRP Name, *NONE, *SAME
Resource name . . . CMN05 Name
Interface type . . . *INTMODEM *RS232V24, *V35, *X21... Modem type . . . '2793 Internal Modem'
+ for more values
1. Select option 31 from the RSF menu to change the product defaults. Page down to PPP Server Info. Enter the following: Line description: RSFSRP
Resource name: The name of the resource that corresponds to your internal modem or an async external modem. (For internal modems, this is typically the first resource listed with type 2771, 2772, 2793, or 2805 on the WRKHDWRSC *CMN display. The text should say “Comm port”.)
Interface type: *INTMODEM for an internal modem. Otherwise *RS232V24.
Modem type: Enter a modem description that exactly matches one of the entries in the PPP modem list (CFGTCP then option 22, then option 11 to see the list.) Tip: If you page down and then page back up, RSF will fill in “2771 Internal Modem” for the modem type. Just type over the “2771” with the actual type of your adapter, if different.
PPP server IP address: This is the IP address that the remote machine uses to contact your machine via PPP. It should be different than your network address. A default value should have been filled in for you. If *CALC shows for this parameter, retype *CALC, press Enter and then prompt the command again to see the default IP address chosen by RSF.
2. Run the Display Network Attributes (DSPNETA) command. Page all the way to the end. Make sure that the correct country ID is specified for “Modem country or region ID”. If not, use the CHGNETA command to change it.
3. Select option 21 from the RSF menu to start the server function. Specify *NO for SDLC and *YES for both “Start dialup PPP support” and “Start RSF TCP/IP support”. You may type *YES for “Save as new defaults” if this parameter is shown. When you press Enter, additional parameters are displayed. Accept the defaults and press Enter again.
Start RSF Server Function (STRRSFSRV)
Type choices, press Enter.
Start dialup SDLC support . . . *NO *YES, *NO Start dialup PPP support . . . . *YES *YES, *NO Start RSF TCP/IP support . . . . *YES *YES, *NO Start broadcast support . . . . *NO *YES, *NO Save as new defaults . . . *YES *YES, *NO
4. If you like, you can also enter PPP Requester Info. Assuming you have only one modem, the information you enter hear should be nearly the same as what was entered for PPP Server Info. The only difference is that you should specify RSFRQP for Line Description. 5. The following information should then be provided to someone at the remote location so that they can configure the connection to your
machine:
Connection type: Tell them you are configured for a PPP (*TCPDIAL) connection.
Phone number: The phone number to use to reach your modem. You can confirm that you have the correct number by dialing from a regular phone and listening for the modem to answer. (Make sure to start the RSF server function first.)
IP address: The IP address shown for “PPP server IP address” in the RSF defaults. (See above.)
Call-back: If the remote location will be connecting using RSF’s call-back feature, they will need to know if an initial 9 or other sequence should precede an outgoing phone number when dialing from your modem, and whether any access code must follow the phone number when dialing long distance.
1. Select option 31 from the RSF menu to change the product defaults. Page down to PPP Requester Info. Enter one block of
information for each available outgoing PPP line. Call the first line RSFRQP, the second RSFRQP2, and so on. Be sure to enter a default call-back phone number if call-back is to be used. Key a plus sign in the blank after “+ for more values” and press Enter to define up to 8 lines. To define more than 8 lines, use DFU to edit file RSF/RSPF018
Change RSF Defaults (CHGRSFDFT)
Type choices, press Enter.
PPP requester info: Line description . . . RSFRQP Name, *NONE, *SAME
Resource name . . . CMN05 Name
Interface type . . . *INTMODEM *RS232V24, *V35, *X21... Modem type . . . '2793 Internal Modem'
Call-back phone number . . . . '12066330512'
Switched connection group . . *NONE Name, *NONE + for more values
PPP dial attempts . . . 1 1-10, *SAME PPP redial delay (sec.) . . . . 15 1-60, *SAME
2. Select option 1 from the RSF menu to Work With Servers. Press Enter at the initial prompt. Either key a 2 beside an entry in the list to change it, or press F6 to create a new entry. For each location to be contacted by PPP. Specify:
Server ID: A server ID
Connection method: *TCPDIAL
RSF phone number: The number to reach the server via PPP
Remote system: The IP address specified on the server machine for “PPP server IP address” in the RSF defaults
3. 3. Run the Display Network Attributes (DSPNETA) command. Page all the way to the end. Make sure that the correct country ID is specified for “Modem country or region ID”. If not, use the CHGNETA command to change it.