As part of my home lab, I purchased a CISCO 2FE-2W interface for my 3600 router. When I installed the interface, it passes POST with no problem. My problem is that interface fast 0/0 can not forward or receive ICMP traffic. When I connect the same interface to a CISCO 3524 I can see the switch through that interface when I use the sh CDP neighbor command. I can use interface fast 0/1 to ping other network with no problem. But for some reason interface fast 0/0 cannot.
Is there another test that I can do on the interface to see what could possibly be wrong?
It is my opinion that if the interface can see the switch at the other end then there is a chance that it might still be functional and that I maybe doing something wrong.
this is the configuration that I am using.
interface FastEthernet0/0
ip address 10.10.200.1 255.255.255.0
duplex auto
speed auto
With the above configuration I should be able to ping any down stream device but I can’t. However typing the same configuration of fast 0/1 works.
Can anyone help?