Date: Wed, 20 Feb 2008 01:18:03 +0000 From: "Bruce M. Simpson" <bms@FreeBSD.org> To: Jeremie Le Hen <jeremie@le-hen.org> Cc: freebsd-net@FreeBSD.org Subject: Re: Two interfaces sharing the same IP address: how to change default route's interface on link change? Message-ID: <47BB7FCB.1090205@FreeBSD.org> In-Reply-To: <20080219221636.GC5164@obiwan.tataz.chchile.org>
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Jeremie Le Hen wrote: > In summary, favor wired connectivity over the wireless one, at any time: > could this be at boot time or not. > > I'm pretty sure I'm not the only one who wants this kind of setup. So > how did you achieve this setup? The forwarding code needs to be changed to support the notion of a floating static, regardless. Recall that in BSD default routes configured statically, whether manually or by DHCP, have the RTF_STATIC flg set. Currently, the BSD behaviour is NOT to update the rt_ifp for an RTF_STATUC route when ifadown is called. I believe this to be correct and honours the original API contract of RTF_STATIC. It is not what you desire in your use case however. Configuring ifstated to manually replumb addresses and routes is probably an easier place to start. Seamless migration is not possible yet; generally sockets are tied to the interface where they were implicitly bound, also nexthop selection happens purely on the basis of destination address. BMShome | help
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