Hi All,

I've just spent a few hours over the weekend playing with 12.1X46-D40 and I 
believe I may have found a bug in the VPN Monitoring feature.

From what I can see 12.1X46-D40 is pulling down VPNs with VPN Monitor enabled 
even when the links between the sites are fine.

I have tested

1) SRX100 12.1X46-D40 <-> SRX240 12.1X44-D35
2) SRX220 12.1X46-D40 <-> 3x SRX110 12.1X44-D30

Now I haven't tested X46 <-> X46 VPNs so it may just be a compatibility issue 
between the two but X46-D35 did not have this issue.

So to fix on 1) I disabled VPN Monitoring and on 2) I downgraded the SRX220 to 
12.1X46-D35. All the VPN links are stable again.

This command:

 show security ipsec security-associations detail

Was showing that the reason for "Tunnel Down" was VPN Monitoring.

Sometimes the VPN would stay up for a couple of hours other times it was 
dropping every 5-10 minutes, so it was a bit hard to troubleshoot at first!

Anyway I just thought I'd let you all know :)

Michael.

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