[VPN] Ipsec stalling
bob.debolt at starblanket.ca
Sun Jul 18 08:54:22 EDT 2004
OpenBSD 3.4 Generic
I have a scenario that is weird to say the least.
I have numerous IPsec connected networks running
and they run very well indeed. I do have however
1 particular network that started "stalling" every
11 - 12 minutes. It doesn't die, it simply seems to
stall out and then carry on. When working on the
system it seems to pulse.( quite annoying actually )
It doesn't matter the time of day or night.
With the exception of IP and password, all the networks
I run are identical in setup, and every other one is fine.
It is inside the tunnel that this primarily occurs and normally
on one particular end. It does however show itself in identical
fashion on the other tunneled end although less frequently. Even
less frequently the pattern shows itself on the public IP side,
When both ends of the tunnel are on the 11 minute stall cycle
they do NOT always happen at the same time, they can be approx.
1 - 2 minutes apart.
The stall lasts for very close to 30 seconds and then the network
continues fine. As mentioned, this pattern repeats itself.
I have changed the Check-interval incrementally from 600 down
to 3 seconds with no effect.
It seems to me that this is a service provider issue, unless
there are some additional timings that I can change but am unaware of.
Anyone seen something like this, or have any setting recommendations?
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