linux-kernel - Re: [PATCH] ipv6: Fixed source specific default route handling.

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Message-Id: <0D0CB420-018B-465C-B27B-72016F41C268@iki.fi>
Date:	Sun, 21 Jun 2015 23:05:00 +0100
From:	Markus Stenberg <markus.stenberg@....fi>
To:	Matthias Schiffer <mschiffer@...verse-factory.net>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	James Morris <jmorris@...ei.org>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	Patrick McHardy <kaber@...sh.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Steven Barth <steven@...link.org>
Subject: Re: [PATCH] ipv6: Fixed source specific default route handling.

Prefsrc is essentially historic non IPv6 construct. IPv6 SAS is based on dst, src, metric ordered lookup just like the routing is too ( lookup rfc, some src specific routing drafts for details ). 

Therefore I do not see a problem. If you want specific SA, add same route with higher metric and/or (more) specific src match. 

There might be bugs there tho, but that is how it should work. As SAS is supposed to happen before routing ( see rfc ) the prefsrc is .. Cough.

-Markus

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