Date: Tue, 3 Mar 2009 18:52:11 +0100 From: Max Laier <max@love2party.net> To: freebsd-stable@freebsd.org Cc: Eirik =?iso-8859-1?q?=D8verby?= <ltning@anduin.net> Subject: Re: carpX: incorrect hash with IP aliases Message-ID: <200903031852.11731.max@love2party.net> In-Reply-To: <D4FB7A0E-9CA3-4B60-A2C7-3231ACFDBAA8@anduin.net> References: <D4FB7A0E-9CA3-4B60-A2C7-3231ACFDBAA8@anduin.net>
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On Tuesday 03 March 2009 15:57:50 Eirik =D8verby wrote: > 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.. You might be referring to http://www.freebsd.org/cgi/query-pr.cgi?pr=3D1215= 74=20 which should have been fixed with rev 1.54 (MFC'ed in 1.52.2.1 to RELENG_7)= of=20 ip_carp.c > Am I doing something wrong? I tried assigning the alias with both /32 > and /24 netmasks. Make sure that you are configuring the same aliases with the same netmasks = on=20 all members of the carp group - preferably before bringing the interface up= =20 for the first time (though it should properly recalculate the hashes as you= =20 add aliases). As you seem to be using pfsense you might want to check with= =20 them to make sure they have the fix in their build - though I recall it was= a=20 joined effort back then. =2D-=20 /"\ Best regards, | mlaier@freebsd.org \ / Max Laier | ICQ #67774661 X http://pf4freebsd.love2party.net/ | mlaier@EFnet / \ ASCII Ribbon Campaign | Against HTML Mail and News
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