RE: ip6-localhost (::1) 2990.86 ms !H -> Why ?

From: NDSoftware (extml@ndsoftware.net)
Date: Sun Nov 18 2001 - 08:11:33 EST


> -----Original Message-----
> From: Pekka Savola [mailto:pekkas@netcore.fi]
> Sent: Sunday, November 18, 2001 1:32 PM
> To: NDSoftware
> Cc: linux-net@vger.kernel.org
> Subject: RE: ip6-localhost (::1) 2990.86 ms !H -> Why ?
>
>
> On Sun, 18 Nov 2001, NDSoftware wrote:
> > Yes but Debian Potato (router) have not this package version (only
> > 3.4.x), only Woody have this.
> > I can't compile on the router (Potato) because it's only a 486.
>
> There is nothing that prevents this; it just takes a bit longer :-).
> Someone (from ipv6 project) might have created binaries for
> potato too.

Yes i have find on google.

>
> > I have try too this routes:
> >
> > Kernel IPv6 routing table
> > Destination Next Hop
> > Flags Metric Ref Use Iface
> > ::1/128 ::
> > U 0 0 0 lo
> > 2001::/16 3ffe:8271:1000:22::1
> > UG 1 0 0 eth0
> > 2002::/16 3ffe:8271:1000:22::1
> > UG 1 0 0 eth0
> > 3ffe:8271:1000:22::/64 ::
> > U 1 3 0 eth0
> > 3ffe:8271:2101:1::/64 ::
> > UA 256 0 0 eth0
> > 3ffe::/16 3ffe:8271:1000:22::1
> > UG 1 14 0 eth0
> > fe80::/10 ::
> > UA 256 0 0 eth0
> > ff00::/8 ::
> > UA 256 0 0 eth0
>
> There is no /128 route to your fe80::[link local] address. It
> might also
> be nice to have a route '3ffe:8271:2101:1::1/128' pointing to
> localhost.

3ffe:8271:2101:1::1/128 ::
U 0 7 1 lo

It's ok (i have reboot the machine for clear all interfaces and routes).

>
> Check how it should look like from the message I sent; just
> replace the
> default route with a 2000::/3.

Yes, done.

>
> > > Using global addresses depend on a lot of other configuration
> > > being right
> > > too. Use only link-local when debugging until that works
> properly.
> > >
> >
> > Yes but the link-local don't work:
>
> Unless you get link-local to work, there's small chance the global is
> going to work. Therefore it's rather useless to debug messages when
> trying global addresses.
>
> > I i ping Woody on router:
> >
> > PING fe80::2d0:70ff:fe01:811b(fe80::2d0:70ff:fe01:811b) from
> > fe80::10:4b44:56cc eth0: 56 data bytes
> > >From ip6-localhost: Destination unreachable: Address unreachable
> > >From ip6-localhost: Destination unreachable: Address unreachable
> > >From ip6-localhost: Destination unreachable: Address unreachable
> >
> > But i understand why i have:
> >
> > 13:14:22.168116 3ffe:8271:1000:22::1 > ff02::1:0:1: icmp6:
> neighbor sol:
> > who has 3ffe:8271:2101:1::1
> > 13:14:23.158696 3ffe:8271:1000:22::1 > ff02::1:0:1: icmp6:
> neighbor sol:
> > who has 3ffe:8271:2101:1::1
> > 13:14:24.158518 3ffe:8271:1000:22::1 > ff02::1:0:1: icmp6:
> neighbor sol:
> > who has 3ffe:8271:2101:1::1
> > 13:14:25.179880 3ffe:8271:1000:22::1 > ff02::1:0:1: icmp6:
> neighbor sol:
> > who has 3ffe:8271:2101:1::1
>
> This tcpdump is not generated from above ping.
>
> Use link locals first. I will not continue this thread
> unless you do so.

Help me thanks !

On Woody, i ping router:

ping6 -I eth0 fe80::a0:2434:1d91
PING fe80::a0:2434:1d91(fe80::a0:2434:1d91) from
fe80::2d0:70ff:fe01:811b eth0: 56 data bytes
>From ::1 icmp_seq=1 Destination unreachable: Address unreachableFrom ::1
icmp_seq=2 Destination unreachable: Address unreachableFrom ::1
icmp_seq=3 Destination unreachable: Address unreachable
--- fe80::a0:2434:1d91 ping statistics ---
6 packets transmitted, 0 received, +3 errors, 100% loss, time 5026ms

On router, when i try to ping it from Woody:

14:12:15.259604 fe80::2d0:70ff:fe01:811b > ff02::1:ff34:1d91: icmp6:
neighbor sol: who has fe80::a0:2434:1d91
14:12:16.259604 fe80::2d0:70ff:fe01:811b > ff02::1:ff34:1d91: icmp6:
neighbor sol: who has fe80::a0:2434:1d91
14:12:17.259604 fe80::2d0:70ff:fe01:811b > ff02::1:ff34:1d91: icmp6:
neighbor sol: who has fe80::a0:2434:1d91
14:12:18.289604 fe80::2d0:70ff:fe01:811b > ff02::1:ff34:1d91: icmp6:
neighbor sol: who has fe80::a0:2434:1d91
14:12:19.289604 fe80::2d0:70ff:fe01:811b > ff02::1:ff34:1d91: icmp6:
neighbor sol: who has fe80::a0:2434:1d91
14:12:20.289604 fe80::2d0:70ff:fe01:811b > ff02::1:ff34:1d91: icmp6:
neighbor sol: who has fe80::a0:2434:1d91

On router, i ping Woody:

PING fe80::2d0:70ff:fe01:811b(fe80::2d0:70ff:fe01:811b) from
fe80::a0:2434:1d91 eth2: 56 data bytes
>From ip6-localhost: Destination unreachable: Address unreachable
>From ip6-localhost: Destination unreachable: Address unreachable
>From ip6-localhost: Destination unreachable: Address unreachable
 
--- fe80::2d0:70ff:fe01:811b ping6 statistics ---
4 packets transmitted, 0 packets received, 100% packet loss

On Woody, when i try to ping it from router:

14:10:35.301780 fe80::a0:2434:1d91 > ff02::1:fe01:811b: icmp6: neighbor
sol: who has fe80::2d0:70ff:fe01:811b
14:10:36.294003 fe80::a0:2434:1d91 > ff02::1:fe01:811b: icmp6: neighbor
sol: who has fe80::2d0:70ff:fe01:811b
14:10:37.293058 fe80::a0:2434:1d91 > ff02::1:fe01:811b: icmp6: neighbor
sol: who has fe80::2d0:70ff:fe01:811b
14:10:38.296243 fe80::a0:2434:1d91 > ff02::1:fe01:811b: icmp6: neighbor
sol: who has fe80::2d0:70ff:fe01:811b
14:10:39.292719 fe80::a0:2434:1d91 > ff02::1:fe01:811b: icmp6: neighbor
sol: who has fe80::2d0:70ff:fe01:811b
14:10:40.293872 fe80::a0:2434:1d91 > ff02::1:fe01:811b: icmp6: neighbor
sol: who has fe80::2d0:70ff:fe01:811b

Thanks very very much.

>
> --
> Pekka Savola "Tell me of difficulties surmounted,
> Netcore Oy not those you stumble over and fall"
> Systems. Networks. Security. -- Robert Jordan: A Crown of Swords
>
>

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This archive was generated by hypermail 2b29 : Fri Nov 23 2001 - 21:00:38 EST