Date: Wed, 10 Dec 2008 16:19:33 +0900 From: Pyun YongHyeon <pyunyh@gmail.com> To: Goran Lowkrantz <goran.lowkrantz@ismobile.com> Cc: stable@freebsd.org Subject: Re: Regression in vr - not receiveing multicast Message-ID: <20081210071932.GD37837@cdnetworks.co.kr> In-Reply-To: <AF36DEA1E8494FE126472BC4@[172.16.2.128]> References: <C882ECF018726481EDA359B3@[172.16.2.124]> <20081209114723.GE33723@cdnetworks.co.kr> <80D07D8C17DAC73D69DCDC9A@[172.16.2.124]> <AF36DEA1E8494FE126472BC4@[172.16.2.128]>
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On Wed, Dec 10, 2008 at 08:06:16AM +0100, Goran Lowkrantz wrote: > --On December 9, 2008 12:53:05 +0100 Goran Lowkrantz > <glz@hidden-powers.com> wrote: > > >--On December 9, 2008 20:47:23 +0900 Pyun YongHyeon <pyunyh@gmail.com> > >wrote: > > > >>On Tue, Dec 09, 2008 at 10:40:17AM +0100, Goran Lowkrantz wrote: > >> > Hi, > >> > > >> > in July, vr had this problem and was fixed: > >> > <http://www.FreeBSD.org/cgi/query-pr.cgi?pr=125010>; > >> > <http://www.FreeBSD.org/cgi/query-pr.cgi?pr=125024>; > >> > > >> > but now it's back again! > >> > > >> > >>There was just one bug fix since then and I guess the fix is not > >>related with your issue. > >> > >> > On a system with the following: > >> > 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #3: Thu Oct 16 12:31:04 UTC 2008 > >> > > >> > I have to set all vr interfaces in promisc to get routing info. > >> > > >> > Using Quagga > >> > # pkg_info -Ix uagga > >> > quagga-0.99.10_3 Free RIPv1, RIPv2, OSPFv2, BGP4, IS-IS route > >>software > > >> > on an inner network using RIPv2 > >> > # ifmcstat -i vr0 > >> > vr0: > >> > inet xxx.xxx.xxx.xxx > >> > group 224.0.0.9 > >> > igmpv2 > >> > mcast-macaddr 01:00:5e:00:00:09 refcnt 1 > >> > group 224.0.0.1 > >> > mcast-macaddr 01:00:5e:00:00:01 refcnt 1 > >> > > >> > > >> > On the same box, we have some em devices also and they work without > >>any > problems. > >> > > >> > >>There is fundamental differences between em(4) and vr(4). The > >>vr(4) for VT6105M takes advantage of perfect multicast filtering > >>feature which is not present on all em(4) interface. Perfect > >>multicast filtering can reduce unwanted multicast traffics such > >>that it could save a lot of CPU cycles. The downside is that vr(4) > >>cannot accept multicast frames for a multicast group without > >>joining the multicast group first. > >>For multicast routing purpose I guess 'options MROUTING' kernel > >>option should be enabled to accept all multicast frames. > >>Does your kernel have that option? > > > >No it has not. I will create such a beast and return with stories. > > > > > I have tried with 'options MROUTING' and it didn't work. > > Did I miss something? Do I have to install and run mrouted also? > > It seems like maybe the first two packages are accepted after registration > as I don't lose the routes until after about 6 min uptime. But to get > further updates, I need the interfaces in promisc. > > So, next step? > Can you see ALLMULTI flag from the output of "ifconfig vr0"? -- Regards, Pyun YongHyeon
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