From owner-freebsd-questions@FreeBSD.ORG  Fri Mar 17 14:18:39 2006
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Date: Fri, 17 Mar 2006 15:19:04 +0100
From: Frank Staals <frankstaals@gmx.net>
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Subject: PF and VPN/Hamachi
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Hey,

I'm having some trouble with my FreeBSD PF firewall and hamachi ( 
http://www.hamachi.cc ) , a simple program to set up a vpn. I asked my 
question on the hamachi forums but nobody seems to reply. Currently I 
have these rules in my pf.conf:

# For Hamachi:
rdr pass on $extif inet proto udp from any to $extaddr port 12975 -> 
192.168.2.11 port 12975

and I just allow all outgoing traffic:

#Allow everyting outwards
pass out all keep state

I tried about every rule stated in this topic ( 
http://forums.hamachi.cc/viewtopic.php?t=1079 ) on the hamachi forums 
but none seem to work; either they have an invalid syntax or I just 
can't use that port ( someone redirected the traffic to port 25 which 
I'm allready using ). I also tried this rule, but it doesn't seem to help:

nat on $extif from $intif:network port 12975 to any -> $extif static-port

I hope someone can tell me what to do because they are either also use 
hamachi through a PF firewall or know what the correct syntax should be.

Thanks,

-- 
-Frank Staals