If you are having problems with telnet access, are you still able to access the router via its console? If so are there any error messages in the logs of the router?
Is it possible that the vty lines were configured with "no exec"? I believe that configuring no exec on the vty lines would produce symptoms like this. I have seen situations where someone configured no exec in the assumption that it was an abbreviation for no exec-timeout. Unfortunately no exec is a separate command and disables starting an exec session on the line. If the vty lines are configured with no exec, try configuring exec on the vty lines and let us know if this fixes the problem.
This document gives several answers on frequently asked questions for PFRv3 channel state behavior.
Q1: What are all the channel operational states from a BR (border role) perspective and what are the rules/conditions to be in each st...
The need was to reach an host inside a LAN through a VPN connection managed by the LAN gateway (Cisco 1921).
The LAN gateway performs NAT and there was a dedicate nat rule for the host i wanted to reach through VPN.
I couldn't connect to the hos...
We have 3 identical switches configured by someone else and would like to claim some of the Gigabit ports(G1/G2/G3/G4) for use on servers. When we try to change the wiring and configuration, we run in to connectivity issues. Attached is a des...