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Site to Site VPN drops frequently to Cisco ASA5505

mrainey
I have a Sophos 220 that is connected to several branch offices over Site to Site ipsec connections. 3 of the offices are other Sophos/Astaro devices and 3 use Cisco ASA 5505's. After I updated to 9.103-5, 2 of the Cisco offices started dropping the connection every hour or so.

In the live log I see this message when the connection drops:
ODESSA RZL" #1074: DPD: Could not find newest phase 1 state
2013:07:15-12:49:42 HotardNO pluto[6720]: "S_RZL NO 2 ODESSA RZL" #1074: DPD: No response from peer - declaring peer dead
2013:07:15-12:49:42 HotardNO pluto[6720]: "S_RZL NO 2 ODESSA RZL" #1074: DPD: Restarting all connections of peer
2013:07:15-12:49:42 HotardNO pluto[6720]: "S_RZL NO 2 ODESSA RZL" #1074: DPD: Terminating all SAs using this connection

These connections never dropped before doing the update and the connection to the 3rd Cisco seems to remain stable.


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  • 0
    Mike, have you tried deleting the IPsec Connection and Remote Gateway definitions and then re-creating them?  If I were to guess, you have a policy with PFS and a lifetime of 3600, and something got mangled in the config.  The other thing I would try is another reboot - maybe something to try after hours.

    Cheers - Bob