Router and firewall troubleshooting
There are many items to look for when troubleshooting router issues. The best tool for troubleshooting is to use a network sniffer like www.wireshark.org to determine where information is being routed to, versus thinking the configuration is actually correct.
If you see the router passing data through the firewall, then you know your firewall is configured correctly. If the firewall blocks the routed packets, then you have some additional troubleshooting to perform.
Just remember, that when you troubleshoot routers and firewalls, you must look at each router in the path, verify traffic is passing through the firewall, and you have the proper tools and knowledge to correctly troubleshoot your router and firewall.
If you see the router passing data through the firewall, then you know your firewall is configured correctly. If the firewall blocks the routed packets, then you have some additional troubleshooting to perform.
Just remember, that when you troubleshoot routers and firewalls, you must look at each router in the path, verify traffic is passing through the firewall, and you have the proper tools and knowledge to correctly troubleshoot your router and firewall.