Troubleshooting the VPN Connection
Configuring an SA peer can be extremely complicated and must be exact. If both peers are
not configured correctly, they cannot successfully establish the VPN connection. The most
common VPN issue is an incorrect configuration of either of the SA peers. The first step of
troubleshooting a VPN should always be to compare the configurations of both peers and
verify that they match. Three commands and a variety of command options are available to
help you troubleshoot VPN issues:
■ show
■ clear
■ debug