Ccna routing and Switching Complete Study Guide

telnet 172.16.20.254

Connecting To 172.16.20.254...Could not open connection to the host, on

port 23: Connect failed

Okay, that’s not good! We can ping to Server1, but we can’t telnet to it. In the past, I’ve 

verified that telnetting to this server worked, but it’s still possible that we have a failure on 

the server side. To find out, let’s verify our network first, starting at R1:

R1>

ping 172.16.20.254

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.16.20.254, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms

R1>