Is this a hole in my firewall?

Giorgos Keramidas keramida at ceid.upatras.gr
Sun Nov 28 04:28:59 PST 2004


On 2004-11-28 04:48, Jonathon McKitrick <jcm at FreeBSD-uk.eu.org> wrote:
> On Sun, Nov 28, 2004 at 03:31:35AM +0200, Giorgos Keramidas wrote:
> : AFAIK, rule 00300 will never be hit by packets going out tun0 as long as
> : you also have rule 00200 in there.
>
> Hmmm.... here's a run after having the laptop running for a bit.  I don't
> see why 200 doesn't cover the case either.
>
> root at neptune:~# ipfw show
> 00100    0       0 check-state
> 00200 6709 1277079 allow ip from me to any keep-state out xmit tun0
> 00300 2093  645797 allow ip from any to any keep-state out xmit tun0

Oops!  That doesn't look good, unless I'm missing something about the
way 'me' works.

It's probably a good idea to send what you have so far to the
freebsd-ipfw people.




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