Date: Thu, 6 Nov 2008 10:06:21 +0100 From: "Jon Otterholm" <jon.otterholm@ide.resurscentrum.se> To: <freebsd-net@freebsd.org> Subject: CARP and L2 src-MAC Message-ID: <C538721D.243A1%jon.otterholm@ide.resurscentrum.se>
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Hi. We have a situation where we want to use CARP in a TPSDA-network and got some problems.=20 The master CARP router ARP response contains the correct virtual MAC but uses the physical interface MAC in L2 header. This is OK for the client = but the switches in between the router and the client will not learn the = virtual MAC. This will work in a =B3normal=B2 switched network but will fail in = a TPSDA network where all L2 devices will not learn the virtual MAC. In this = case the network is built upon Alcatel iSAM FTTU and because all = CARP-messages is broadcast they will not learn the virtual MAC. Is it possible to tweak CARP to use the virtual MAC in L2 header instead = of the physical interface MAC? Could this be implemented as a feature controlled by a sysctl? //Jon
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