What command or action will verify that a VPN tunnel has been established?
- Issue a show ip interface command.
- Issue a show crypto map command.
- Issue a show crypto isakmp sa command.
- Send interesting traffic from the VPN router interface.
Explanation: To verify that tunnels have been established, use the show crypto isakmp sa or show crypto ipsec sa commands. Sending interesting traffic does not actually mean that the tunnels are established. The show crypto map command is used to verify the crypto map configuration.