I was recently in a CCNP lab where we were to configure 15 new out of the box 2600 series routers to get used to the new hardware using direct serial connections between them (s0/0 & s0/1) using the networks 172.168.1-15.0. Each router had a fast ethernet connection (f0/0) which we hooked to our PCs using the networks 10.0.1-15.0. We were using RIP and everything seemed to be working fine. We could ping each serial interface from the routers and the PCs, but when we tried to ping the ethernet ports, it would not work. (We were supposed to setup ACLs on the ethernet to stop icmp, but we had to get them to work in the first place!). We looked at every router and saw nothing wrong in their config. We noticed that the 10.0.0.0/8 networks were not in the RIP updates, so we checked some more and then tried using IGRP. Still nothing. I know that 10.0.0.0/8 network is a private network, but so is the 172.168.0.0/12 network we were using. We ended up changing the network on the fast ethernet and we got RIP updates from the new networks and everything worked. Does any one know why this would happen. Why would the 10.0.0.0/8 network not work but the other private network IPs work? -Matt Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=18786&t=18786 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
