From owner-freebsd-hackers@FreeBSD.ORG  Thu May 27 08:06:32 2004
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Date: Thu, 27 May 2004 17:09:49 +0200 (CEST)
From: "Per Engelbrecht" <per@xterm.dk>
To: <aanton@reversedhell.net>
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cc: freebsd-hackers@freebsd.org
Subject: Re: how many IP aliases
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Hi Alin

> Can anyone tell me what is the limit for how many IP aliases can be
> setup  on the same ethernet card?
>
> Is there a global limit for the total number of aliases in the OS?
>
> To be clear: one needs 128 IPs (for irc vhosts) to be setup on one
> server.  Is that impossible?

I don't know the exact max. number for aliases on a single nic, but I
do know that 128 addresses isn't a problem - depending of course on
your setup such as ram, cpu, board and last but not least, nic.
Don't do it on a $20 nomame-nic.

respectfully
/per
per@xterm.dk