Date: Fri, 3 Mar 2017 01:16:25 +0000 From: "asomers (Alan Somers)" <phabric-noreply@FreeBSD.org> To: freebsd-net@freebsd.org Subject: [Differential] D9451: Constrain IPv6 interface routes to each FIB Message-ID: <4bd6a528077f144f2b546a0138d8355b@localhost.localdomain> In-Reply-To: <differential-rev-PHID-DREV-xl62ljmjgot45obmsgfw-req@FreeBSD.org> References: <differential-rev-PHID-DREV-xl62ljmjgot45obmsgfw-req@FreeBSD.org>
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asomers added inline comments. INLINE COMMENTS > jhujhiti_adjectivism.org wrote in nd6.c:1295 > > It's totally valid for an interface to have multiple addresses assigned, each of which is on a different fib. > > Is this true? I'm not aware of a way this could happen. Interface routes are added to the FIB associated with the interface, and of course there is only one FIB per interface. For instance in6_newaddrmsg() provides no mechanism by which to assign the route for the interface's address to anything other than the interface FIB. Yep, it's true. One way is to do it with static routes. Another way involves changing the interfaces's fib. For example, like this: ifconfig tap0 create ifconfig tap0 10.1.0.1/24 fib 2 ifconfig tap0 10.1.1.1/24 fib 3 alias REPOSITORY rS FreeBSD src repository REVISION DETAIL https://reviews.freebsd.org/D9451 EMAIL PREFERENCES https://reviews.freebsd.org/settings/panel/emailpreferences/ To: jhujhiti_adjectivism.org, #network, bz, asomers Cc: jch, bz, imp, ae, freebsd-net-list
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