Cannot ping hosts

[Kwakachunga]

i hav R1 with WIC-2T and an ethernet int 192.168.0.1 R2 connect to R1 via a leased line ip add of ethernet int is 192.168.3.1.R3 connect to R1 via a leased line ip add of ethernet int is 192.168.2.1.the serial interfaces are ip unnumbered.i can ping R1 ethernet int (192.168.0.1) from the other two sites but cant ping any hosts on the network .The hosts on 192.168.0.X network can ping 192.168.0.1.what could b the problem ?

[Kevin Dorrell]

If you do a show ip route, you will probably see that none of your routers have any routes except to their own Ethernets. Any other addresses are unknown to them.

You need either to configure some static routes, or some routing protocol so that they exchange routing information. Try this:

On R1:

router rip

 network 192.168.0.0

On R2:

router rip

 network 192.168.3.0

On R3:

router rip

 network 192.168.2.0

If I understand correctly, R2 has Ethernet 192.168.3.0/24, is that right?

I am also guessing that you are running PPP rather than HDLC over your WAN links, which is why you can ping only the host addresses of the remote routers. I think if you do a show ip route, you will just see the host routes.

Another thing that could cause the symptoms you are describing: the hosts on 192.168.0.0/24, do they have 192.168.0.1 set up as their default gateway?

Kevin Dorrell

Luxembourg

[Kwakachunga]

Thanks for your contribution.THe hosts on 192.168.0.0/24 have a default gateway of 192.168.0.254 which is the gateway to the internet