Return to BSD News archive
Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!spool.mu.edu!howland.erols.net!www.nntp.primenet.com!nntp.primenet.com!dispatch.news.demon.net!demon!awfulhak.demon.co.uk!awfulhak.demon.co.uk!awfulhak.demon.co.uk!not-for-mail
From: brian@anorak.coverform.lan (Brian Somers)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Alias on ethernet interface
Date: 13 Dec 1996 02:23:43 -0000
Organization: Coverform Ltd.
Lines: 33
Sender: brian@awfulhak.demon.co.uk
Message-ID: <58qenf$jeg@anorak.coverform.lan>
References: <58olkl$j4p@samba.rahul.net>
Reply-To: brian%anorak.coverform.lan@awfulhak.demon.co.uk
NNTP-Posting-Host: localhost.coverform.lan
X-NNTP-Posting-Host: awfulhak.demon.co.uk
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Newsreader: knews 0.9.8
Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:32482
In article <58olkl$j4p@samba.rahul.net>,
Rainer Busch <busch@rahul.net> writes:
: This is one for the networking experts:
:
: we are changing our provider. Now I want to be able to receive e-mail etc.
: for some time at the new as well as the old internet address. Both lines
: and routers are active.
: Now I changed the address of ed0 to the new address, and aliased the old:
:
: ifconfig ed0 addr.in.new.addrspace netmask 0xfffffff0
: ifconfig ed0 addr.in.old.addrspace netmask 0xfffffff0
:
: Both addresses can be pinged from in- and outside now.
:
: This works fine so far for some time. But then - I guess some dynamic
: routing kicks in - ed0 kinda "forgets" its primary, and flips over to
: the other (aliased) one. This conflicts with the default route, of course,
: and - bang - the machine is off-net.
:
: Any suggestions to resolve this cleanly ?
I havn't got a "real" connection, so I havn't mucked around with RIP much,
but if you're running routed, you may wish to switch to gated. It's
supposed to be much better at *not* gratuitously removing routes.
BTW, I take it that it's just the above example that's missing the "alias"
keyword.
--
Brian <brian@awfulhak.demon.co.uk>, <brian@freebsd.org>
<http://www.awfulhak.demon.co.uk/>
Don't _EVER_ lose your sense of humour....
.