Similar to Cisco IOS devices, the Cisco ASA has several show commands that enable you to verify the configuration and the IKE and IPsec tunnel information. The following are some of the most useful show commands for troubleshooting IPsec implementations in the Cisco ASA:
show crypto isakmp stats: Displays detailed information of both IKEv1 and IKEv2 transactions in the Cisco ASA
show crypto ikev1 stats: Displays detailed information of IKEv1 transactions in the Cisco ASA
show crypto ikev2 stats: ...