Date: Wed, 15 Dec 2004 11:52:05 +0100 From: Andre Oppermann <andre@freebsd.org> To: Gleb Smirnoff <glebius@freebsd.org> Cc: freebsd-net@freebsd.org Subject: Re: per-interface packet filters [summary] Message-ID: <41C01755.6E352422@freebsd.org> References: <20041213124051.GB32719@cell.sick.ru> <20041214015603.A75019@xorpc.icir.org> <20041214060341.A77720@xorpc.icir.org> <41BEF746.E8362858@freebsd.org> <20041214063118.B77933@xorpc.icir.org> <41BF07A3.8F1F505E@freebsd.org> <20041214181231.GA80817@scylla.towardex.com> <20041215084540.GB53509@cell.sick.ru>
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Gleb Smirnoff wrote: > > On Tue, Dec 14, 2004 at 01:12:31PM -0500, James wrote: > J> The way we have approached this in the past is to install /32 host routes > J> for each interface addr's and respective subnet and broadcast /32 addresses > J> into the kernel RIB, destined to lo0 interface. Place your per-interface > J> filter on 'lo0' interface and packets destined to router iteslf will be > J> subject to loopback filter before making it onto upper layer protocol. > > I was thinking of this idea, too. So, it works? Yes, it works. It will work better when the ARP layer 2 information is removed from the routing table. This is expected to happen fairly soon (early next year). -- Andre
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