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. 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 łnormal˛ 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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