Keep VPN Tunnel Alive

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Mar 13th, 2008
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I found that if no traffic pass through VPN tunnel for 15 mins, the tunnel wull be dropped. How to keep the tunnel to be "alive" forever? My Device is ASA 5510

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logintck Mon, 03/17/2008 - 01:25
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Thx for your reply.

I ran isakmp keepalive threshold 15 retry 10 in tunnel-group... but VPN tunnel is still be dropped after 15 mins if no traffice pass through. Let us attach my config. Please help

francisco_1 Mon, 03/17/2008 - 04:10
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There are few ways to keep tunnel open

-Periodic isakmp keepalives

crypto isakmp keepalive

-isakmp policy 20 lifetime

crypto ipsec security-association lifetime


logintck Mon, 03/17/2008 - 20:45
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Thx for your help

I ran these commanded but the VPN link still is still dropped after 15 mins.

Version 8.0(2)


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