*BSD News Article 83358


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From: Ken Bigelow <kbigelow@www.play-hookey.com>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Two devices with same IP
Date: Tue, 19 Nov 1996 19:24:56 +0000
Organization: Erol's Internet Services
Lines: 39
Message-ID: <32920988.63E7@www.play-hookey.com>
References: <56ltqk$nhv@csugrad.cs.vt.edu> <56lvvc$62f$1@gail.ripco.com>
	    <56m19m$u08@csugrad.cs.vt.edu> <328EF58B.16E4@www.play-hookey.com> <56scbl$29d@anorak.utell.net>
Reply-To: kbigelow@www.play-hookey.com
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Brian Somers wrote:
> 
> In article <328EF58B.16E4@www.play-hookey.com>,
>         Ken Bigelow <kbigelow@www.play-hookey.com> writes:
> : I have no problem with that. My gateway/mailserver/Webserver/etc. is
> : running FreeBSD 2.1R. It uses a 33.6k modem for connection to my ISP,
> : and an NE2100 clone (lnc0) for my local network. Both ports have the
> : same IP address, and work fine with no trouble. Since they are both
> : attached to the same box, neither my ISP nor my local network (nor
> : anyone else) have any trouble indentifying this box as a unique node.
> :
> : I also have no problem operating through this box to access the Internet
> : from other boxes on my local network, or accessing the local net from
> : outside.
> 
> Of course this assumes that all but one of the interfaces have a netmask
> of 0xffffffff :)
> 

Sorry, brian, but no. From my /etc/sysconfig file:


network_interfaces="cuaa1 lnc0 lo0"
ifconfig_cuaa1="inet 206.161.179.129  netmask 255.255.255.224"
ifconfig_lnc0="inet 206.161.179.129  netmask 255.255.255.224  mtu 1006"
ifconfig_lo0="inet localhost"

The only thing I have changed in months has been the mtu setting, and
that was because of some messing around that my ISP did. These settings
have always worked fine, as you can see by visiting my site (URL in my
sig). In fact, I am at this moment answering via Netscape 3's newsreader
in Win 3.1 (for a specific reason) on one of the computers in my subnet.
Seems to still be working fine.
-- 
Ken

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