3030 Concentrator Site to Site

Unanswered Question
Jul 22nd, 2008
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Trying to setup L2L VPN. Once the L2L is enabled, does it attempt to connect immediately? Also, how can I view the logs to see what is successful/failing on this or any other VPN connection.

Thank you.

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michael.leblanc Tue, 07/22/2008 - 15:54
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You need to generate traffic requiring crypto protection (defined by your crypto ACL) in order to initiate the negotiation of an ISAKMP SA, which will establish a secure channel through which IPSec SAs will be negotiated.

Don't have access to a 3030 Concentrator, but on an IOS system you'd check status with:

show crypto isakmp sa detail

show crypto ipsec sa detail

Perhaps, log crypto sessions in syslog with:

crypto logging session

... and perhaps:

deny ip any any log

... as the last ACE in interface ACLs to identify configuration errors, and the presence of traffic that violates security policy.

srue Tue, 07/22/2008 - 17:48
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like any other vpn, you need to pass data through it for hte vpn to attempt to establish.

to monitor vpn sessions:

Monitor --> sessions

to view logs:

Monitor --> filterable event log


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