FreeBSD Router Problem

[Shawn Everett]

Hi Guys,

Here's a weird one...  I set up FreeBSD 5.2 to act as a router.  I used
the pf.conf script shown at:
http://www.openbsd.org/faq/pf/pools.html#outgoing

Everything works just fine.  Traffic is appropriately load balanced and
things work as expected.

Strangely after a few hours something just stops routing traffic.  I can't
ping the remote gateways either.  Both external interfaces still show the
correct IP addresses.  Rebooting the BSD box solves the problem.  Nothing
else gets rebooted.

Any suggestions would be appreciated.

Shawn