Router configuration problems help!

You are a bit low on information here, but I would guess that you are not correctly specifying your network mask. Using network 10, the default mask is 255.0.0.0, which means that all of your subnets are actually on the same network. A router will not work unless there are different networks on the two sides. You must explicitly specify a network mask of 255.255.255.0 on all of your interfaces to make this happen.

The way you are now, you can probably ping anything on the same side of the router you are on, but nothing on the far side of any router.

Good luck.

I hope this is more clear than my previous question. Here's the deal we have a total of 8 (routers) offices all connected to our HQ.(main router) All of the 8 routers come in the main router in HQ. we have 9 separate subnets I also have a pix sitting behind the main router (HQ)The routers we currently have are Danube's I'm trying to replace them all with Cisco routers. The problem I'm having is that I can only ping one subnet but not the others. My submask (255.255.255.0) is the same on all subnets I'm assuming that I don't need change anything on my firewall config.. since the subnets have been defined is this correct? Do think I need to make changes to the main router? Anyhow I hope this made more sense than my last question let me knowif you need additional information.
Thanks in advance

-JAIME

You won't connect these interfaces for the simple fact is that they are on different networks.
Each router should have at leave 2 interfaces in them. On the main router interface 1 should be connected to the PIX. Interface 2 should be connected tothe WAN connection (frame, T1, T3, etc...). On the remote router interface 1 should be connected to the local network, and interface 2 should be connected to the other end of the WAN connection. Both interfaces connected to the WAN should be in the same network (example: 10.5.4.1/28 for the main router, 10.5.4.2/28 for the second, 10.5.4.3/28 for the third, etc...).

You can use what ever subnet mask you would like. I chose a 28 bit 255.255.255.240 because you only have a total of 10 hosts. A 28 bit mask will give you a toal of 14 hosts, but if you are going to add more remote sites in the future you may want to plan ahead. I also chose 10.5.4.0 because I'm assuming that the 10.5.2.0 is the same IP Address range on the HQ site, and the 10.5.3.0 is the romate LAN network.

Now because each of the WAN interfaces are on the same network you should be able to ping from 10.5.2.1 to 10.5.3.1, and vice-versa. Don't forget to set up the routes for this. There are quite a few chains of thought of setting up a routing protocol over static routes. It is truely all up to you. Just remember that anytime you use a routing protocol you will be sending traffic over the wire even when there is no user traffic.

Good luck

This question was auto closed due to inactivity