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From Tony Finch <>
Subject Re: Teched / maybe some interesting information
Date Thu, 08 Jul 1999 20:01:04 GMT
Dean Gaudet <> wrote:
>On Thu, 8 Jul 1999, Tony Finch wrote:
>> 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

That reminds me that Irix's built-in ip filtering package also has the
functionality (we used it on Demon's homepages before switching to FreeBSD).

Winner, International Obfuscated C Code Competition 1998

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