Routing problem

[thiru.vel10]

HI Pradeep,

. There are three router A, B, C. A router having internet access and router A to B one Point to point Leased line, Router B to C one point to point Leased line.

Router C

One default router

Ip route 0.0.0.0 0.0.0.0 router B interface IP

Router B

IP route 0.0.0.0 0.0.0.0 Router A interface IP

IP route router C LAN network Router C serial int IP

Router A

IP route 0.0.0.0 0.0.0.0 ISP gateway.

This is our configuration.

I am able to ping Router C LAN IP from Router A

I am able to ping Router A and Router C LAN ip from Router C

I am able to ping Router B LAN ip and Loopback IP, but unable to ping Router A IP from Router C that is my problem , there is no dynamic routing protocol only default and static,

Please posted your Ideas for this

[nikhil.engineer · Accepted solution]

Hi,

As mentioned in previous post there is problem in your config.

RtrA dont have any information regarding C. Try to ping RtrB interface-ip add which is conneted to RtrC. Also try extended ping test from RtrA where you mention src-intrf which is connected to B. Here the ping will fail. The reason is the destination is not present in your routing table.

You said that you are able to ping from RtrC to RtrA while you are unable to ping from RtrA to RtrC which is highly impossible unless and untill you are have changed the src interface.

HTH

Cheers,

Nikhil E.

[thiru.vel10]

routing problem was fixed. I have added one route in router A

Ip route ( Router c Serial IP) ( Mask) ( Serial IP for router A-B). It everything working fine thanks a lot .