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From Dean Gaudet <>
Subject Re: Teched / maybe some interesting information
Date Thu, 08 Jul 1999 15:27:08 GMT

On Thu, 8 Jul 1999, Tony Finch wrote:

> tser <> wrote:
> >
> >* Maximum Number of IP adress you can use on a Single NT server, is 250.
> >Unless you install Sp5
> >
> >This Bug was said to be have fixed inside the TCP/IP (network) Core, So
> >i think it also affects Apache.
> >After upgrading to SP5, the maximum number is 4000.
> A JFYI followup: Solaris supports up to 8192 addresses per interface,
> but the performance sucks. BSDI supports large numbers of IP aliases
> without poor performance (but managing many aliases is a pain).
> *BSD with a patch like in
> will allow you to have very large numbers of IP aliases if they are
> whole CIDR blocks. (Dean Gaudet has a similar patch.)

Yeah my patch is for freebsd 2.2.x, but Tony's against 3.x is much nicer. 

Oh and apparently linux 2.2.x supports CIDR aliasing as well --

ip route add local a.b.c.d/n dev eth0


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