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Date:      Tue, 3 Mar 2009 15:57:50 +0100
From:      =?ISO-8859-1?Q?Eirik_=D8verby?= <ltning@anduin.net>
To:        stable@freebsd.org
Subject:   carpX: incorrect hash with IP aliases
Message-ID:  <D4FB7A0E-9CA3-4B60-A2C7-3231ACFDBAA8@anduin.net>

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Hi,

whenever I configure an extra IP on one of my CARP interfaces, traffic  
on that particular subnet slows to a crawl (the primary IP of the  
interface is the gateway IP), and I get lots of
  carp4: incorrect hash
in dmesg.

I see this issue referenced also in
   http://lists.freebsd.org/pipermail/freebsd-net/2008-March/017160.html
and there are suggestions this is a known issue - however I still see  
it in FreeBSD 7.1 (pfSense 1.2.3-prerelease). I cannot find a PR on  
this, but my searching skills may be inadequate..

Am I doing something wrong? I tried assigning the alias with both /32  
and /24 netmasks.

/Eirik



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