Date: Wed, 10 Oct 2012 07:57:05 -0400 From: Dominic Blais <dblais@interplex.ca> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Default route "random" gateway modification bug Message-ID: <2DE61B0869B7484997BCA012845482C7EBE8E2819F@WIN2008.Domnt.abi.ca>
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--_004_2DE61B0869B7484997BCA012845482C7EBE8E2819FWIN2008Domnta_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi (sorry, I clicked send too fast ;) ), I had to change the server of my customer who have this bug because we want= ed to put 2 redundant servers with carp... I removed the old server and re= placed it with 2 brand new ones. <delete>The old one was an HP ML115 and th= e new ones are Lenovo TS120</delete>. The new servers are the same model (H= P ML115). I used the same software: - FreeBSD 9.0 - MPD 5.6 - IPFW (pipes only + single pass all rule) - PF ruleset for filter and NAT. And only added: kldload if_carp.ko The problem just happened this last night with that configuration so I may = say it should be replicable if someone did use the same FreeBSD version wit= h ipfw for pipes and pf for rules/nat. We still don't know what is exactly = messing up with the default gateway but we know that it is something with t= he mix of FreeBSD 9, IPFW for pipes and PF for NAT. You must add some traff= ic to it to make it happen since it looks like it's using an IP of a host t= he users communicated with to replace the gateway. I often see, but not onl= y, Microsoft owned IP as my default gateway when it happens. -- [cid:image001.gif@01CDA6BC.D6EB26D0] --_004_2DE61B0869B7484997BCA012845482C7EBE8E2819FWIN2008Domnta_--
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