Configuring Routing on a Spoke/Hub/Mesh Wan

[klipsch]

I have configured the primary router,(2620)INDY, with an external ADRAN TSU LT. The second router, (1720)NASH, has an internal CSU/DSU. I have put an IP address on the serial interface and basicaly the routers are connected to each other with a cross over cable for lab testing.

1. I can ping from one router to another only to the IP address of the fastethernet connection. I cannot ping the serial IP's. Is this right or should I be able to ping the serial interface?

2. Even though I can ping on one router to the others fastethernet interface I cannot ping from my laptop to the other router. I am using the following for rouring:

ip route 192.168.2.0 255.255.255.0 serial0/0.18

ip route 192.168.3.0 255.255.255.0 serial0/0.23

ip route 192.168.5.0 255.255.255.0 serial0/0.22

ip route 192.168.7.0 255.255.255.0 serial0/0.21

[doug.lockwood]

1. You should be able to ping numbered serial interfaces under most conditions.

in a frame relay mapped multipoint scenario, it is sometimes necessary to map your own IP out the dlci in order to ping the local interface.

2. Under normal conditions, I recommend setting next hop to an IP address, not an interface.

Also, your static routes look "wrong" Unless you are using frame encapsulation, I would not expect the routers to use sub-interfaces in a back to back configuration. Without the configurations, I am talking generalities, however.

Hope this helps;

Doug