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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!spool.mu.edu!newspump.sol.net!www.nntp.primenet.com!nntp.primenet.com!feed1.news.erols.com!howland.erols.net!peerfeed.internetmci.com!solaris.cc.vt.edu!csugrad.cs.vt.edu!csugrad.cs.vt.edu!not-for-mail From: jagnew@csugrad.cs.vt.edu (H. Jared Agnew) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: Two devices with same IP Date: 16 Nov 1996 22:37:26 -0500 Organization: Virginia Tech Computer Science Dept, Blacksburg, VA Lines: 39 Message-ID: <56m19m$u08@csugrad.cs.vt.edu> References: <56ltqk$nhv@csugrad.cs.vt.edu> <56lvvc$62f$1@gail.ripco.com> NNTP-Posting-Host: csugrad.cs.vt.edu X-Newsreader: TIN [version 1.2 PL2] I'm sorry I must not have been clear enough, I'm talking about having two devices, be they ethernet cards or modems in one machine with the same IP. ------- 192.168.0.1 -------- 192.168.0.1 --------- ^local net ^ethernet card ^dual holmed host ^modem ^world Thanks --- Jared --jared@vt.edu David Richards (dr@ripco.com) wrote: : In article <56ltqk$nhv@csugrad.cs.vt.edu>, : H. Jared Agnew <jagnew@csugrad.cs.vt.edu> wrote: : > I have a friend that uses Redhat-4.0. He was giving me flac about the fact : >that FreeBSD will not allow the same IP on more than one device. I talked : >to a few friends and they told me that this was because haveing two devices : >with the same IP is against TCP/IP standards or something. If anyone knows : >where I could read more about this could you please post. Maybe a FAQ or : >RFC??? Thanks : Correct. : One system can have more than one IP address assigned to it, but it is : utterly WRONG to have more than one machine with the same MAC or IP : address. : That Linux would allow this is no suprise to me :-) : Perhaps he's talking about "IP Masquerade" where a Linux box can "hide" : several machines behind it, using it's IP address for connections to/from : those machines? Handy for cheap users whose ISP won't provide them with : additional addresses. : -- : David Richards Ripco, since Nineteen-Eighty-Three : My opinions are my own, Public Access in Chicago : But they are available for rental Shell/SLIP/PPP/UUCP/ISDN/Leased : dr@ripco.com (312) 665-0065 !Free Usenet/E-Mail!