strange l2l ipsec vpn problem/

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Sep 28th, 2009
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Good day. We have cisco 3825 router terminating l2l ipsec vpn from about 20 remote sites. Sometimes (once - twice a week) the tunnel with random site goes down and cannot be reestablished. The strange thing is that i can't see any traces of activity in logs with debug isakmp and debug ipsec from this remote site. Other Vpn tunnels are working fine. No hang crypto sessions or sa's. The only way to reestablish the tunnel is rebooting the router.

Thanks in advance , Dmitry.

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auraza Thu, 10/08/2009 - 14:41
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Which router do you reboot? The remote one or the 3825?

What do you see in the debugs of the remote router? What is the version of code you're running on the 3825?


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