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Date:      Wed, 24 Mar 1999 13:18:01 -0800
From:      tront@cs.sfu.ca
To:        freebsd-questions@freebsd.org
Subject:   natd problem
Message-ID:  <3.0.3.32.19990324131801.00a11890@cs.sfu.ca>

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I am a university instructor of a network admin course that has been using
freebsd unix for 2 years, we are currently using 2.2.7.  We are trying natd
for the first time ever.  And after checking all available documentation we
are stumped as to why we can't even ping one hop from the gateway to a
public network machine while natd is running.
We have followed the instructions on the man page exactly!
We can ping from the internal machine to the gateway and visa versa.  But
not through the gateway to the public network.  And more interestingly, not
even from the gateway machine to the public network (one hop!).  When we
kill natd and remove the divert firewall rule, ping is successful in all
ways, including relay through the gateway, so the connectivity and routing
is good.

The divert rule firewall timestamp is showing that it is being used at the
time we attempt to pings, so the firewall is running.  And the firewall
only has the specified 2 rules plus the final 65535 deny rule.   Also, we
found that running natd in verbose mode generated no error messages.  And
running in log mode didn't seem to generate any log in alias.log.

We have spent hours on this, and are beginning to disagree with the man
page that states "Running natd is fairly straight forward".  Can you give
us another pointer or two on where to look for some error in our setup.

Thanks VERY much,
Russ Tront, Instructor
School of Computer Science
Simon Fraser University
Burnaby, B.C.  V5A 1S6
Canada.



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