netdev - Re: SV: Netlink, route monitoring, RTM_DELROUTE not issued for ppp peer address. Bug or feature?

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Date:	Mon, 16 Apr 2012 14:40:05 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	denys@...p.net.lb
Cc:	stian@...ia.no, eric.dumazet@...il.com,
	stephen.hemminger@...tta.com, netdev@...r.kernel.org
Subject: Re: SV: Netlink, route monitoring, RTM_DELROUTE not issued for ppp
 peer address. Bug or feature?

From: Denys Fedoryshchenko <denys@...p.net.lb>
Date: Mon, 16 Apr 2012 13:37:14 +0300

> So the only solution is to fetch first, then keep full routing table
> in userspace also, and keep tracking if local addresses deleted, and
> do the same in userspace and check for prefsrc...

You don't need to keep full routing table in userspace, don't be
silly.

You only need to watch for the device down event, and purge in
userspace based upon that key.
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