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Re: multiple IP# for one IF ?

daemon@ATHENA.MIT.EDU (Matthias Urlichs)
Mon May 8 19:27:23 1995

To: submit-linux-dev-net@ratatosk.yggdrasil.com
From: urlichs@smurf.noris.de (Matthias Urlichs)
Date: 8 May 1995 23:43:06 +0200

In linux.dev.net, article <199505062123.RAA00909@interbev.mindspring.com>,
  Robert Sanders <rsanders@interbev.mindspring.com> writes:
> 
> ARP requests.  I don't think dummy devices correctly deal with the case
> of having two networks on one wire; the ipalias patches go out of their
> way to choose the mose comfortable source address for outgoing packets,
> etc.  
> 
Choosing the best source address is a definite plus. Sometimes. Other
times, I don't _want_ any "best" source address, I want the address I'm
always using... the only reason I have to add a second address is that the
_other_ guys don't understand multiple networks and I have to do some
routing there by hand.

> I'm not saying dummy devices aren't a solution, but there seems to
> be a definite need for ipaliases.  Even if not implemented the way I 
> did, many users will be needlessly confused by the "dummy" way of doing
> things.  All the www server documents will soon document "ifconfig alias",
> and there's no need for Linux to be gratuitously different in yet another
> area.
> 
But do we need the added complexity for the IP router to search not a
single list (interfaces) for possible local matches, but a list of chains,
many of which will have only one link?

-- 
If you had just a minute to live, and they granted you one final wish,
would you ask for something like another chance?
-- 
Matthias Urlichs        \ XLink-POP Nürnberg  | EMail: urlichs@smurf.noris.de

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