Failed PPP authentication
What’s wrong here? Take a look at the usernames and passwords. Do you see the problem
now? That’s right, the C is capitalized on the Pod1R2 username command found in the configuration
of router Pod1R1. This is wrong because the usernames and passwords are case sensitive,
remember? Let’s take a look at the show interface command and see what happens:
Pod1R1#sh int s0/0
Serial0/0 is up, line protocol is down
Hardware is PowerQUICC Serial
Internet address is 10.0.1.1/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 243/255, txload 1/255, rxload 1/255
Encapsulation PPP, loopback not set
Keepalive set (10 sec)
LCP Closed
Closed: IPCP, CDPCP
First, notice in the first line of output that Serial0/0 is up, line protocol is down.
This is because there are no keepalives coming from the remote router. Second, notice that the
LCP is closed because the authentication failed.