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Date:      Mon, 18 Dec 1995 16:57:57 -0500
From:      "Garrett A. Wollman" <wollman@lcs.mit.edu>
To:        M C Wong <mcw@hpato.aus.hp.com>
Cc:        freebsd-questions@freefall.FreeBSD.org (freebsd-questions@freefall.cdrom.com)
Subject:   2 (or more) LAN interface on SAME subnet ?
Message-ID:  <9512182157.AA08392@halloran-eldar.lcs.mit.edu>
In-Reply-To: <199512172320.AA091442430@hp.com>
References:  <199512172320.AA091442430@hp.com>

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<<On Mon, 18 Dec 95 10:20:28 EDT, M C Wong <mcw@hpato.aus.hp.com> said:

>     Ok, all the machines are FreeBSD 2.1R, anyway. Now, we want to
> dedicate a new interface and a separate `physical' segment for the
> server for big binaries write access, but without having to use up
> a different subnet (scarce). So, ideally, the new interface must
> be on the same logical subnet as the existing one, but it is on a
> different physical segment.

>    Is this doable ?

No.

> work, at least in theory. From memory there is no restriction on 
> physical interface and logical subnet. Please correct me if this is
> not true.

This is not true.  The Internet Architecture requires that logical
subnets be fully-connected.  The BSD Architecture requires that every
network interface be connected to a unique subnet.

-GAWollman

--
Garrett A. Wollman   | Shashish is simple, it's discreet, it's brief. ... 
wollman@lcs.mit.edu  | Shashish is the bonding of hearts in spite of distance.
Opinions not those of| It is a bond more powerful than absence.  We like people
MIT, LCS, ANA, or NSA| who like Shashish.  - Claude McKenzie + Florent Vollant



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