Capturing with wireshark (which is the new version of ethereal) works if the PC is connected to a SPAN port of a switch. But I do not believe that you can capture with wireshark for traffic on the serial port of a router.
I am not clear what you are looking for but I wonder if netflow could give you what you are looking for.
Netflow is an IOS feature that provides statistics on packets flowing through a router. The netflow cache would reveal information about source/destination address, source/destination port #s, protocol type and input interface etc.
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...