Date: Tue, 30 Dec 2003 12:20:19 +0200 From: Alexander Motin <mav@alkar.net> To: al vanyushenkov <vanyushenkov@nettmail.de> Cc: freebsd-ipfw@freebsd.org Subject: Re: gray network and ipfw2 Message-ID: <3FF15163.8060809@alkar.net> In-Reply-To: <20031230054214.8C30044B31@sumykhimprom.org.ua> References: <20031230054214.8C30044B31@sumykhimprom.org.ua>
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al vanyushenkov wrote: > hi all > i have freebsd 4.8 installed and i use ipfw2 with the rules > #!/bin/sh > ipfw='/sbin/ipfw' > $ipfw -f flush > > $ipfw add divert natd all from any to any via ppp0 > $ipfw add allow log all from any to any ^^^^^ this rule matches packets on all innterfaces. Internal too. On internal interface you really have grey addresses. > > my local ethernet card has 192.168.133.7 ip address > and my ppp0 interface has 217.15.x.x ip address. > > when i tried to connect to 195.54.192.44:21 from my local box i got the lines > > Accept TCP 172.16.202.106:4802 195.54.192.44:21 out via ppp0 > Accept TCP 195.54.192.44:21 172.16.202.106:4802 in via ppp0 > and so on. > > as i know 172.16.0.0 are gray addresses and i haven't got any 172.16.x.x networks > in my environment. > Could anybody tell me what 172.16.202.106:4802 does in my log file. -- Alexander Motin mav@alkar.net ISP "Alkar-Teleport"
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