10-02-2017 10:40 AM
On Weelkend, one of our tunnels was down for about an hour. I was checking system logs and found these messages repeatedly for that tunnel, even after it is up. Anybody knows what this means and what to look for in logs to find the cause of tunnel failure.
'the packet retransmitted in a short time from x.x.x.x[500]'
'IKE phase-2 negotiation request received but no phase-1 SA is found. Message sent from IP x.x..x.x[500] to y.y.y.y[500]'
10-02-2017 11:48 PM - edited 10-03-2017 01:22 AM
Hi,
Can you please post full log output from the CLI:
> tail lines 100 mp-log ikemgr.log
This guide is quite good if you want to get an additional info:
10-03-2017 10:05 AM
We have 5 different tunnels. Even doing 2500 shows less than 2hours of logs
tail lines 2500 mp-log ikemgr.log
10-03-2017 02:56 PM
Was this one time issue?
It it happens every now and then in this case check if DPD settings are same at both sides (either on or off).
10-04-2017 01:32 PM
These messages are continous, but it was down this time only and there is no DPD configured on either side.
'the packet retransmitted in a short time from x.x.x.x[500]'
'IKE phase-2 negotiation request received but no phase-1 SA is found. Message sent from IP x.x..x.x[500] to y.y.y.y[500]'
10-04-2017 05:34 PM
Anything in Monitor > System log about phase 1 take down?
( subtype eq vpn ) and ( description contains 'phase-1' )
Phase 1 key lifetime values are same?
less mp-log ikemgr.log
/x.x.x.x[500]
/following-searchkeyword - search function to look up logs for this partner
10-05-2017 12:07 PM
I see these 2 mesages related to phase 1
Deleting a possible stale phase-1 SA. cookie:45d6eddfe123a631:437d84921654er2c
IKE protocol phase-1 SA delete message sent to peer. cookie:45d6eddfe123a631:437d84921654er2c
I don't have control on other end, will have to ask for it.
10-05-2017 12:34 PM - edited 10-05-2017 12:34 PM
Unfortunately, without the full log files/messages we can only guess.
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