From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <andi@firstfloor.org>
Subject: Re: What were the reasons of having mandatory IP address at AX.25 interfaces ?
Date: Mon, 04 Feb 2008 15:38:35 +0100
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To: Matti Aarnio <matti.aarnio@zmailer.org>
Cc: linux-hams@vger.kernel.org, netdev@vger.kernel.org

Matti Aarnio <matti.aarnio@zmailer.org> writes:

> .. the original reason was apparently that _ifconfig_ blew up
> when it saw protocols that it didn't understand on network
> interfaces.  Possibly when there was no IP protocol on an
> interface.

It's not only ifconfig, a lot of programs use SIOCGIFCONF
to query ip addresses.

-Andi