Date: Sat, 29 Aug 2009 19:08:19 -0700 From: "Li, Qing" <qing.li@bluecoat.com> To: =?iso-8859-1?Q?Michael_T=FCxen?= <Michael.Tuexen@lurchi.franken.de> Cc: qingli@freebsd.org, "Bjoern A. Zeeb" <bz@freebsd.org>, Randall Stewart <rrs@lakerest.net>, net@freebsd.org Subject: RE: routing message problem Message-ID: <B583FBF374231F4A89607B4D08578A4305277CDC@bcs-mail03.internal.cacheflow.com> In-Reply-To: <38B715CC-9C82-4D8D-97CC-134A9CB01A0C@lurchi.franken.de> References: <BFC746D7-9E88-43AD-8320-96928633C532@lurchi.franken.de> <B583FBF374231F4A89607B4D08578A4305277931@bcs-mail03.internal.cacheflow.com> <38B715CC-9C82-4D8D-97CC-134A9CB01A0C@lurchi.franken.de>
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Hi Michael, >=20 > your patch fixes the issue. > Will it find its way into 8.0? > Will it find its way into 7.3? >=20 Yes, the patch will make its way into 8.0 Release and 7.3, too. Thanks, -- Qing >=20 > On Aug 28, 2009, at 7:24 PM, Li, Qing wrote: >=20 > >> > >> Dear all, > >> > >> via a bug report from Preethi I figured out that there are no > >> RTM_NEWADDR > >> routing messages generated when an IP address is added to an > >> interface > >> and there is already an address in the same network configured. > >> This is a problem for the SCTP stack. > >> > >> To reproduce the problem you can > >> sudo ifconfig em0 192.168.1.1 > >> sudo ifconfig em0 192.168.1.2 alias > >> > >> and use the attached problem. It will only show the first address > >> being added. This problem applies to FreeBSD 9.0 CURRENT and 7.2 > >> RELEASE. > >> > >> Any idea how to fix the problem? > >> > > > > > > Please try my patch (not the final version) at > > > > http://people.freebsd.org/~qingli/patch-8-28-rtmsg.diff > > > > > > I have tested it and seems to work as expected. You should > > get the notifications for both address insertion ("alias") > > and deletion ("-alias"). > > > > Let me know if it's to your satisfaction. > > > > I found a couple of other issues while looking over the code. > > > > 1. in_scrubprefix() is called unnecessarily in 2 locations > > 2. the loopback host route is not removed for an alias > > > > On a related note, in.c can use some code cleanup. I think > > I will do that post 8.0 release. > > > > Thanks, > > > > -- Qing > > > >
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