In article <200411252313.30348.hasso@xxxxxxxxx> (at Thu, 25 Nov 2004 23:13:30
+0200), Hasso Tepper <hasso@xxxxxxxxx> says:
> David S. Miller wrote:
> > On Tue, 23 Nov 2004 23:22:50 +0200
>
> My first letter didn't end in list, seems. Sorry if most of this info will
> be duplicate.
>
> > Hasso Tepper <hasso@xxxxxxxxx> wrote:
> > > While debugging IPv6 RIB in Quagga routing software I discovered some
> > > issues with kernel rtnetlink messages.
> > >
> > > 1) RTM_NEWROUTE message with prefix ff00::/8 (if interface goes up or
> > > down) is sent with rtm_type set to RTN_UNICAST. It's multicast route,
> > > so why not RTN_MULTICAST? Is it bug?
> >
> > What kernel version? I remember fixing this bug.
> > We should not be emitting rtnetlink messages for
> > these any more.
>
> Although my main production platform is 2.4.28, I tested with 2.6.9 (with
> patch added from http://oss.sgi.com/archives/netdev/2004-11/msg00558.html)
> as well. Is this too old already?
>
> I tested now with 2.6.10-rc2-bk8 as well and all these bugs are still there.
> RTM_NEWROUTE messages are sent for both, ff00::/8 and fe80::/64 with
> rtm_type set to RTN_UNICAST and rtm_protocol set to RTPROT_BOOT.
Okay, I eat this report.
Another fact: In IPv4, RTPROT_BOOT is set if it is configured
if route is configued via ip_rt_ioctl().
If is called from ipconfig or inet_ioctl().
RTPROT_BOOT should be set only when it is set via ipconfig, I think.
Back to IPv6. Do we really need RTPROT_BOOT in IPv6?
I don't think so.
Because we don't know if the interface was brought up
by kernel during boot (by ipconfig), so
it is not trivial.
> hasso:/home/hasso# ip -6 route | grep 3ffe
> hasso:/home/hasso# ip -6 addr add 3ffe::1/64 dev eth0
> hasso:/home/hasso# ip -6 route | grep 3ffe
> 3ffe::/64 dev eth0 metric 256 mtu 1500 advmss 1440 metric10 64
> hasso:/home/hasso# ip -6 addr del 3ffe::1/64 dev eth0
> hasso:/home/hasso# ip -6 route | grep 3ffe
> 3ffe::/64 dev eth0 metric 256 mtu 1500 advmss 1440 metric10 64
> hasso:/home/hasso#
I think this is a bug.
--
Hideaki YOSHIFUJI @ USAGI Project <yoshfuji@xxxxxxxxxxxxxx>
GPG FP: 9022 65EB 1ECF 3AD1 0BDF 80D8 4807 F894 E062 0EEA
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