In order to troubleshoot problems resulting from an issue with a vpn connection where router contains a firewall ios, knowing the correct commands are essential. What are the proper commands that should be used in displaying information related to vpn problems? For example, on a pix commands show conn, show isa sa, show ipsec sa, sh exlate etc. help in determining issues. What are some commands that are the equivalent to these and what others can be used on a router that has a firewall ios?
Have a look at this link to learn more about the Cisco IOS Firewall.