IBM SC30-3681-08 manual Dening the IP Address, Setting the Internal IP Address

Using XTP

Setting the National Personality

Each X.25 public network has its own standard con®guration. The National Personality refers to a group of 28 variables that de®ne the characteristics of the public data network. These variables provide the router with control information for packets transferred over the link and in¯uence the X.25 facilities used between and XTP router and its local DTE.

All facilities contained in incoming call requests are passed on to the peer router, regardless of whether the local router was con®gured to support that facility. For example, when packet size negotiation is requested in the incoming call and ¯ow control negotiation is not con®gured in the router.

The router will insure any packet size and window size being negotiated is within

the range speci®ed when de®ning the X.25 interface. For example, a packet window greater than 7 is negotiated down to 7 if packet-ext-seq-mode has not been de®ned for the X.25 interface.

To view the con®guration values, enterlist detailed at the X.25 Config> prompt. To

set the default values for the national personality, enter set national-personalityat the X.25 Config> prompt. For further information, refer to Software User's Guide

De®ning the IP Address

Before you con®gure the Concentrator router (as displayed in Figure 20 on

page 366 ) for XTP, de®ne the IP address for this router. Enterprotocol ip at the Config> prompt and enter add address at the IP config> prompt.

Config>protocol ip

IP config>add address

Which net is this address for [0]?3

New address [0.0.0.0]?128.185.100.7

Address mask [255.255.0.0]?255.255.255.0

Setting the Internal IP Address

Each router identi®es its peer routers by the internal IP address of the peer routers.

To set the internal IP address of the peer router, enter set internal IP address at the IP Config> prompt.

IP config>set internal-ip-address

Internal IP address [0.0.0.0]?128.185.100.1

Con®guring XTP

After you have con®gured X.25 and de®ned the IP address, you are ready to con®gure XTP for the router.

If you need further con®guration information when con®guring XTP, see ªXTP

Con®guring Commandsº on page 375.

Note: When con®guring your network for XTP, remember that the peer routers are always the routers you are communicating with over TCP/IP. Therefore, the peer router can differ depending on the point of view. When con®guring the routers de®ned as Remote 1 router and Remote 2 router in Figure 20 on page 366 , to them the peer router is the Concentrator router.

Chapter 28. Using XTP 369