1

I want to find out which phase 2 is associated with a particular phase 1 on cisco ASA device.

There are several phase 1 and phase 2 on the device. With the following commands, I can see the active SAs :

   show crypto isakamp sa details
   show crypto ipsec sa details

But there is only one active for each phase. The configuration itself does not explicitly say "This phase 2 is associated with this phase 1" like Fortigate 60D from Fortinet for example.

Referring to this doc on cisco website, I understand VPNs tunnels are established after trying each phase configuration until a match is found.

Is there a way to know on cisco ASA devices which phase 2 is associated with a particular phase 1 ?

2

Another useful vpn show command is:

show vpn-sessiondb detail l2l

ASA Command Reference Guide

This should give you what you are looking for. This command gives quite a bit of information for each tunnel that is negotiated. This can also be utilized to view other types of VPNs. The syntax may be slightly different depending on code version.

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  • After some tries, I think it will always only show active tunnels. But At least, with this command, I can find out on the association between a phase 1 and several phase 2. – Sengoku Otome Feb 23 '16 at 22:09
0

One way is to display it with the specific peer ip.

Check Phase 1 Tunnel

ASA#show crypto isakmp sa detail | b [peer IP add]

Check Phase 2 Tunnel

ASA#show crypto ipsec sa peer [peer IP add]

Display the PSK

ASA#more system:running-config | b tunnel-group [peer IP add]

Display Uptime, etc.

ASA#sh vpn-sessiondb detail l2l | b [peer IP add]
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  • Thanks for the tips. I had already tried the command above "sh vpn-sessiondb"and it is great for troubleshooting the configuration but it did not help me to find out which crypto map sequence is used on which isakamp policy. – Sengoku Otome Feb 23 '16 at 22:14

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