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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!news.mel.connect.com.au!munnari.OZ.AU!news.ecn.uoknor.edu!news.wildstar.net!newsfeed.direct.ca!hunter.premier.net!news.cais.net!newshub.sdsu.edu!newsfeeder.sdsu.edu!news.sgi.com!enews.sgi.com!news.mathworks.com!newsfeed.internetmci.com!news-in.communique.net!tetsuo.communique.net!communique!usenet From: Jim King <jim@ase.telerate.com> Newsgroups: comp.unix.bsd.freebsd.misc Subject: NAT / IP Masquerading Date: Mon, 12 Aug 1996 13:00:19 -0500 Organization: Communique Inc., New Orleans Lines: 13 Message-ID: <320F7133.41A5@ase.telerate.com> NNTP-Posting-Host: jimk.ase.telerate.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.0b7 (WinNT; I) I have an application where I'm thinking of using a FreeBSD box as a router to do NAT. This is very straightforward, I just want to do a one-to-one mapping between one class C to another - e.g. 1.2.3.4 maps to 5.6.7.8 and vice versa. Has anyone implemented this type of NAT in ipfw? (This seems like a natural.) I've tried running IP Filter on FreeBSD 2.1.5-RELEASE. It sometimes works, but today I'm getting a kernel panic every time I try to ping something through that box. Does IP Filter work better on 2.1.0? Jim