Date: Wed, 26 Oct 2016 11:58:52 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 213804] [carp]: packets got processes on the BACKUP node under certain conditions Message-ID: <bug-213804-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D213804 Bug ID: 213804 Summary: [carp]: packets got processes on the BACKUP node under certain conditions Product: Base System Version: 10.3-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: emz@norma.perm.ru Consider the following scheme: +-----------------+ iface1 | | iface2 +-------| host A (MASTER) |-------- | | | | +-----------------+ carp1 | +-----------------+ | | | iface2 +-------| host B (BACKUP) |-------- << packet to carp 1 IP iface1 | | +-----------------+ Lets assume both hosts are advertising themselves using rtadvd as ipv6 rout= ers for network attached to the iface2. In this case, they both can receive ipv6 packets undercertain conditions, destined to the CARP address carp1. When a BACKUP node receives such packets, it processes them locally, regardless of= the state of the CARP, as if it was MASTER. I observe this only on the ipv6, because the process of router advertising = in ipv6 is different from ipv4. However, I suppose the same rule applies to the ipv4, but it's not that important, since I cannot imagine the configuration that would reproduce this for ipv4. --=20 You are receiving this mail because: You are the assignee for the bug.=
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