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Community Member

help with cisco 881

Hello

I'm having some trouble configuring a cisco 881. I'm building a lab where I connect 2 cisco 881 through the fe4 interface (Wan port), and then connect to each router a PC, at interface fe0 (Lan port). The idea was to establish connection and implementing a static route between the 2 routers.

As a default the 881 has dhcp enabled on VLAN1 (10.10.10.0/24). So I set the pc's to get Ip's automatically. On Router A, I changed the dhcp pool so that I had a different network (11.10.10.0/24). So I have PC1 (11.10.10.2) connected to Router A on interface fa0. Router A connects to Router B through the fe4 interfaces (WAN ports). And PC2 (10.10.10.0/24) connects to Router B on fa0 interface.

I assigned an ip address to fe4 on Router A (192.168.10.1/24) and an ip address to fe4 on Router B (192.168.10.2/24).

At last I configured the static routes on both routers.

On Router A :                         ip route 10.10.10.0 255.255.255.0 192.168.10.2

On Router B :                         ip route 11.10.10.0 255.255.255.0 192.168.10.1

With everything configured I tested the connections.

PC 1 to its gateway: successful

PC 1 to 192.168.10.2: successful

PC1 to the gateway of PC2(10.10.10.1/24): successful

PC 1 to PC 2: failed

PC 2 to its gateway: successful

PC 2 to 192.168.10.1: successful

PC2 to the gateway of PC1(11.10.10.1/24): successful

PC 1 to PC 2: failed

Well this is the scenario. I really don’t understand the problem. I thing I did everything right, but I simply don’t get the result. Is there an error with my configuration or is this simply not doable?

Thanks a lot.

2 REPLIES

help with cisco 881

Have you checked that the firewalls are turned off? If you can ping the far side, that tells me you have a default gateway configured on the workstation and that the far side router has a route back to you. The only thing left would be firewalls need to be turned off on the workstations.

HTH,
John

*** Please rate all useful posts ***

HTH, John *** Please rate all useful posts ***
Community Member

help with cisco 881

Hi John

Thanks a lot for your answer. Tha was in deed the solution. The firewall was the trouble maker.

Thanks a lot.

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