--On April 17, 2006 2:29:23 PM -0700 Noah Silverman <[EMAIL PROTECTED]> wrote:

I have a system with a 4.11 Kernel.  Unless I'm doing something very
wrong, there seems to be something odd with ipfw.

Take the following rules:

ipfw add 00280 allow tcp from any to any 22 out via bge0 setup keep- state
ipfw add 00299 deny log all from any to any out via bge0
ipfw add 0430 allow log tcp from any to me 22 in via bge0 setup limit
src-addr 2
ipfw add 00499 deny log all from any to any in via bge0

In theory, this should allow in SSH and nothing else.

When I install this firewall configuration, I'm locked out of the  box.
An inspection of the logs shows that rule 499 is being  triggered by an
attempted incoming connection.

What does "ipfw show" reveal regarding connection stats?

If you're at the console, can you ssh out to some other box?

Paul Schmehl ([EMAIL PROTECTED])
Adjunct Information Security Officer
University of Texas at Dallas
AVIEN Founding Member

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