Modify idle timeout value for LAN to LAN IPSEC Tunnel

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Jun 9th, 2008
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Hi Folks,

I have an ASA with several LAN to LAN IPSEC tunnels configured and having VPN drop outs if we leave our session idle for sometimes as little as 5 minutes.


Can this be increased to something more realistic, say 60 minutes +?


Thanks,

Chandru


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Farrukh Haroon Mon, 06/09/2008 - 12:46
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Do you have crypto isakmp keepalives configured?


Also what is the idle time currently configured for phase 1 and phase 2?


Regards


Farrukh

ckuriyar74 Mon, 06/09/2008 - 22:47
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Yes, I have configured crypto isakmp keepalives.


crypto isakmp policy 30

authentication pre-share

encryption 3des

hash md5

group 2

lifetime 86400


Thanks,

Chandru

Farrukh Haroon Mon, 06/09/2008 - 23:04
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Can you please post the output of the following:


show run crypto

show crypto protocol statistics ipsec

show crypto map detail



Also what values have you used in the crypto isakmp keepalive command?


Is there any firewall in the transit path?


Regards


Farrukh

Farrukh Haroon Mon, 06/09/2008 - 23:21
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Also I forgot the most important command


show run all group-policy


I'm just looking for the


vpn-idle-timeout and vpn-session-timeout commands in there. They are used to set the idle/absole timeouts for VPN connections. You can increase them and check.


Regards


Farrukh

Farrukh Haroon Tue, 06/10/2008 - 00:28
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Please configure the following and test:


group-policy DfltGrpPolicy attributes

vpn-idle-timeout none


Or set it to something higher? Default is 30 minutes of idle time.


Regards


Farrukh

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