From: md@Linux•IT (Marco d'Itri)
To: Pekka Savola <pekkas@netcore•fi>, David Stevens <dlstevens@us•ibm.com>
Cc: netdev@vger•kernel.org
Subject: Re: broken link-local multicast?
Date: Mon, 18 Feb 2008 02:21:24 +0100 [thread overview]
Message-ID: <20080218012124.GA13035@bongo.bofh.it> (raw)
In-Reply-To: <OFC0F61926.E02437A5-ON882573F0.002AA552-882573F0.002BD5F2@us.ibm.com> <alpine.LRH.1.00.0802150928020.3621@netcore.fi>
On Feb 15, Pekka Savola <pekkas@netcore•fi> wrote:
>> root@frwl-5a:~# ping6 -c 1 -I eth1 ff02::1
>> connect: Network is unreachable
>
> Maybe 'netstat -gn' could give clues, because you should be receiving a
> response at least from the loopback address. Maybe your loopback
> interface has went down, or ospf6d took it down and back up (at least
> some time ago, kernel's v6 got very confused after that).
The loopback is up. ospf6d /may/ have done something to it, but I do not
know how to check this (and I cannot reboot these servers right now).
1: lo: <LOOPBACK,UP,10000> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
> You may also want to check out that your link-local address on the
> interface you're pinging is still OK.
Apparently it is:
root@frwl-5a:~# netstat -gn | grep eth1
eth1 1 224.0.0.5
eth1 1 224.0.0.1
eth1 1 ff02::6
eth1 1 ff02::5
eth1 2 ff02::1:ff00:0
eth1 1 ff02::2
eth1 1 ff02::1:ff00:89
eth1 1 ff02::1:ffd8:7dd
eth1 1 ff02::1
These (except ff02::1:ffd8:7dd, which is different) are the same
addresses of eth0, which works.
On Feb 15, David Stevens <dlstevens@us•ibm.com> wrote:
> Marco,
> You called this a "firewall" -- do you get the same thing
> when you have no iptables rules?
Yes, I double checked again and reproduced these results with totally
empty v6 chains.
--
ciao,
Marco
prev parent reply other threads:[~2008-02-18 1:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-14 16:28 broken link-local multicast? Marco d'Itri
2008-02-15 7:31 ` Pekka Savola
2008-02-15 7:58 ` David Stevens
2008-02-18 1:21 ` Marco d'Itri [this message]
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