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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!news.wildstar.net!serv.hinet.net!news.uoregon.edu!arclight.uoregon.edu!dispatch.news.demon.net!demon!awfulhak.demon.co.uk!awfulhak.demon.co.uk!awfulhak.demon.co.uk!not-for-mail From: brian@awfulhak.demon.co.uk (Brian Somers) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: IP forwarding Date: 14 Sep 1996 13:08:03 +0100 Organization: Coverform Ltd. Lines: 21 Message-ID: <51e773$is@anorak.coverform.lan> References: <513hrs$ca@anorak.coverform.lan> <519mm2$euk@cayman.priconet.de> NNTP-Posting-Host: localhost.coverform.lan X-NNTP-Posting-Host: awfulhak.demon.co.uk X-Newsreader: TIN [version 1.2 PL2] Marc Zimmermann (marc@cayman.priconet.de) wrote: : Brian Somers (brian@awfulhak.demon.co.uk) wrote: : > On a machine w/ 3 interfaces, is there any way to forward IP between two : > of them, but not the third ? For example, I have two subnets & a ppp : > to the internet - I want the subnets to talk, but not send crap onto : > the 'net. : No problem. Build a kernel with ipfw in it. Then use ipfw like this : ipfw add 100 deny all from any to any in via iface : (maybe you will have to specify a keyword before the "in", cannot : tell, right now.) : Works supern, here- Yep (*bang* shoots me in the head) thanks for all responses (via mail too). -- Brian <brian@awfulhak.demon.co.uk> Don't _EVER_ lose your sense of humour....