We have a network with a Catalyst 500 switch and a 871 Ethernet router. The router has been configured ,with SDM, a SDM default medium security firewall. We observe that there is continuous traffic between the router and the internet(DSL modem). I don't see this traffic on any of the hosts. The firewall is moderately active filtering incoming traffic, but the logging that I have been able to set up does not show the activity that I see on the router and modem front panels. Could this be an indication that the router is infected?
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...