On 12/1/06, Jason W. Allen <[EMAIL PROTECTED]> wrote:

  Lifetime: 28800
  Lifetime: 86400

Now when I try to ping from the left network to the right nothing happens
and these are the logs I get.

Dec 1 13:04:19  racoon: INFO: @(#)ipsec-tools 0.6.6
Dec 1 13:04:19  racoon: WARNING: setsockopt(UDP_ENCAP_ESPINUDP_NON_IKE):
Invalid argument

This is just a theory, but it looks like racoon doesn't play well (in
some situations) if the Phase 2 lifetime is longer than the Phase 1
lifetime.

I've been dealing with a situation where there are 3 sites, each with
links to the other two sites.

A <->  B OK
B <-> C OK
A <-> C Periodic failures

The periodic failures that I saw were that the link would only
establish properly when traffic was initiated from site A.  If the
link dropped, traffic from site C would not bring it back up.  At
times, recovery was only possible by disabling the tunnel on site A's
firewall and then enabling it.  This forced a new association and
everything would be fine for a while.  I finally had a chance to
switch site C to pfSense (from m0n0) and thought that maybe that would
solve the problem.  It didn't so I started digging around.
Eventually, I found information that pointed to racoon so I started
examining that.

In the end, it turned out that that particular link was configured
with a Phase 1 lifetime of 14400.  Phase 2 lifetime was not specified
so it used the default of 28800.  None of the other links had that
specified.

After removing the lifetime value and applying changes,  the link came
right up whereas before I would have had to disable, save, enable,
save, and cross my fingers.

YMMV,

M

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