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Date: Fri, 19 Sep 2008 16:12:29 +0200
From: Victor NOEL <victor.noel@...zydwarves.org>
To: netdev@...r.kernel.org
Subject: Re: zd1211rw (2.6.26.5) and ipv6
It looks like no one is interested in this, but I found something
else about this problem and maybe this will interest someone :)
I find a way to make it work : when I do, for example, a ping6
www.kame.net, like I said, nothing happens, but if, at the same
time, in another terminal I run "tcpdump -i wlan0 ip6" to see
what is happening, then the ping6 just starts to work !
This is the output of tcpdump :
[root@...tache ~]# sudo tcpdump -i wlan0 ip6
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on wlan0, link-type EN10MB (Ethernet), capture size 96 bytes
16:04:47.536006 IP6 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b > orange.kame.net: ICMP6, echo request, seq 1, length 64
16:04:47.822294 IP6 fe80::207:cbff:fec8:d1d2 > ff02::1:ff94:fd9b: ICMP6, neighbor solicitation, who has 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b, length 32
16:04:47.822354 IP6 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b > fe80::207:cbff:fec8:d1d2: ICMP6, neighbor advertisement, tgt is 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b, length 32
16:04:47.824741 IP6 orange.kame.net > 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b: ICMP6, echo reply, seq 1, length 64
16:04:48.537505 IP6 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b > orange.kame.net: ICMP6, echo request, seq 2, length 64
16:04:48.827362 IP6 orange.kame.net > 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b: ICMP6, echo reply, seq 2, length 64
16:04:49.544169 IP6 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b > orange.kame.net: ICMP6, echo request, seq 3, length 64
16:04:49.827156 IP6 orange.kame.net > 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b: ICMP6, echo reply, seq 3, length 64
16:04:50.547500 IP6 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b > orange.kame.net: ICMP6, echo request, seq 4, length 64
16:04:50.559867 IP6 unassigned.v6.your.org.www > 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b.57536: S 2533693637:2533693637(0) ack 305690881 win 65535 <mss 1420,nop,wscale 3,sackOK,timestamp 3194396694 3902515>
16:04:50.559934 IP6 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b.57536 > unassigned.v6.your.org.www: . ack 1 win 89 <nop,nop,timestamp 3905252 3194396694>
16:04:50.560084 IP6 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b.57536 > unassigned.v6.your.org.www: P 1:448(447) ack 1 win 89 <nop,nop,timestamp 3905252 3194396694>
16:04:50.695772 IP6 unassigned.v6.your.org.www > 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b.57536: . 1:1409(1408) ack 448 win 8272 <nop,nop,timestamp 3194426830 3905252>
16:04:50.695841 IP6 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b.57536 > unassigned.v6.your.org.www: . ack 1409 win 133 <nop,nop,timestamp 3905293 3194426830>
16:04:50.696446 IP6 unassigned.v6.your.org.www > 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b.57536: . 1409:2817(1408) ack 448 win 8272 <nop,nop,timestamp 3194426830 3905252>
16:04:50.696598 IP6 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b.57536 > unassigned.v6.your.org.www: . ack 2817 win 177 <nop,nop,timestamp 3905293 3194426830>
16:04:50.832040 IP6 unassigned.v6.your.org.www > 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b.57536: P 2817:3845(1028) ack 448 win 8272 <nop,nop,timestamp 3194426967 3905293>
16:04:50.832076 IP6 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b.57536 > unassigned.v6.your.org.www: . ack 3845 win 221 <nop,nop,timestamp 3905334 3194426967>
16:04:50.851750 IP6 orange.kame.net > 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b: ICMP6, echo reply, seq 4, length 64
16:04:51.550846 IP6 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b > orange.kame.net: ICMP6, echo request, seq 5, length 64
16:04:51.850061 IP6 orange.kame.net > 2a01:e35:2f1f:8f10:b9ba:8c7f:1694:fd9b: ICMP6, echo reply, seq 5, length 64
^C
21 packets captured
21 packets received by filter
0 packets dropped by kernel
Thanks you for your help,
Victor
On Tue, Sep 16, 2008 at 07:50:08PM +0200, Victor NOEL wrote:
> Hello,
>
> After a little investigation (see after), I came to the conclusion
> there was something strange with the zd1211rw wifi driver (or
> maybe mac80211-based ones like it happened in the past ?) and ipv6
> (at least with autoconfiguration).
>
> I am on Archlinux with kernel 2.6.26.5 kernel behind a router
> connecting me to internet by ipv4 and ipv6.
>
> After a little discussion with John W. Linville on irc, he
> redirected me to this mailing list.
>
> The idea is that I connect to a wireless network with wpa
> protection, get my ipv4 address by dhcp and my ipv6 address by
> autoconfiguration : the ip is ok, the routes are goods, I can
> ping6 myself, I can ping6 the router (the next hop for default
> route) but I can't go out of this network.
>
> If I do the same but with ethernet (same router serving both
> ethernet and wifi), all the ip configuration, routes, neighbors
> are the same, but I can go out on the net.
>
> Nothing in dmesg.
>
> Of course ipv6 works on other boxes (I tried a windows on a
> laptop, and the routes used are the same too)
>
> This is what I have with both ethernet and wifi :
> First wifi :
> [victor@...tache ~]$ ip -6 route
> 2a01:e35:2f1f:8f10::/64 dev wlan0 proto kernel metric 256 expires 86386sec mtu 1480 advmss 1420 hoplimit 4294967295
> fe80::/64 dev wlan0 metric 256 mtu 1480 advmss 1420 hoplimit 4294967295
> default via fe80::207:cbff:fec8:d1d2 dev wlan0 proto kernel metric 1024 expires 1797sec mtu 1480 advmss 1420 hoplimit 64
>
> [victor@...tache ~]$ ifconfig
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> inet6 addr: ::1/128 Scope:Host
> UP LOOPBACK RUNNING MTU:16436 Metric:1
> RX packets:12 errors:0 dropped:0 overruns:0 frame:0
> TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:748 (748.0 b) TX bytes:748 (748.0 b)
>
> wlan0 Link encap:Ethernet HWaddr 00:60:B3:EA:19:97
> inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
> inet6 addr: 2a01:e35:2f1f:8f10:5:2b83:18cf:89f1/64 Scope:Global
> inet6 addr: 2a01:e35:2f1f:8f10:260:b3ff:feea:1997/64 Scope:Global
> inet6 addr: fe80::260:b3ff:feea:1997/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:18242 errors:0 dropped:0 overruns:0 frame:0
> TX packets:19472 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:16047994 (15.3 Mb) TX bytes:2862642 (2.7 Mb)
>
> wmaster0 Link encap:UNSPEC HWaddr 00-60-B3-EA-19-97-00-00-00-00-00-00-00-00-00-00
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
> [victor@...tache ~]$ ping6 www.kame.net
> PING www.kame.net(orange.kame.net) 56 data bytes
> ^C
> --- www.kame.net ping statistics ---
> 5 packets transmitted, 0 received, 100% packet loss, time 4011ms
>
> [victor@...tache ~]$ tracepath6 www.kame.net
> 1?: [LOCALHOST] pmtu 1480
> 1: no reply
> ^C
>
> [victor@...tache ~]$ ip -6 neigh show
> fe80::207:cbff:fec8:d1d2 dev wlan0 lladdr 00:07:cb:c8:d1:d2 router STALE
>
>
> And ethernet :
> [victor@...tache ~]$ ifconfig
> eth0 Link encap:Ethernet HWaddr 00:0E:A6:AA:D4:55
> inet addr:192.168.0.21 Bcast:192.168.0.255 Mask:255.255.255.0
> inet6 addr: 2a01:e35:2f1f:8f10:20e:a6ff:feaa:d455/64 Scope:Global
> inet6 addr: fe80::20e:a6ff:feaa:d455/64 Scope:Link
> inet6 addr: 2a01:e35:2f1f:8f10:c8bc:d444:cd3:ca45/64 Scope:Global
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:6 errors:0 dropped:0 overruns:0 frame:0
> TX packets:36 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:1548 (1.5 Kb) TX bytes:7671 (7.4 Kb)
> Interrupt:22
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> inet6 addr: ::1/128 Scope:Host
> UP LOOPBACK RUNNING MTU:16436 Metric:1
> RX packets:12 errors:0 dropped:0 overruns:0 frame:0
> TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:748 (748.0 b) TX bytes:748 (748.0 b)
>
> [victor@...tache ~]$ ip -6 route
> 2a01:e35:2f1f:8f10::/64 dev eth0 proto kernel metric 256 expires 86369sec mtu 1480 advmss 1420 hoplimit 4294967295
> fe80::/64 dev eth0 metric 256 mtu 1480 advmss 1420 hoplimit 4294967295
> default via fe80::207:cbff:fec8:d1d2 dev eth0 proto kernel metric 1024 expires 1780sec mtu 1480 advmss 1420 hoplimit 64
>
> [victor@...tache ~]$ ping6 www.kame.net
> PING www.kame.net(orange.kame.net) 56 data bytes
> 64 bytes from orange.kame.net: icmp_seq=1 ttl=50 time=283 ms
> ^C
> --- www.kame.net ping statistics ---
> 1 packets transmitted, 1 received, 0% packet loss, time 0ms
> rtt min/avg/max/mdev = 283.337/283.337/283.337/0.000 ms
>
> [victor@...tache ~]$ tracepath6 www.kame.net
> 1?: [LOCALHOST] pmtu 1480
> 1: 2a01:e35:2f1f:8f10::1 1.078ms
> 2: 6to4-b8-e3.intf.routers.proxad.net 30.465ms
> 3: bzn-crs16-1-te1-1-0-7.intf.routers.proxad.net 32.224ms
> 4: 2001:5a0:0:300::25 31.212ms
> 5: 2001:5a0:0:300::2a 107.376ms
> 6: if-1-0.core2.nto-newyork.ipv6.teleglobe.net 108.126ms
> 7: p16-0-1-1.r20.nycmny01.us.bb.gin.ntt.net asymm 8 107.843ms
> ^C
>
> [victor@...tache ~]$ ip -6 neigh show
> fe80::207:cbff:fec8:d1d2 dev eth0 lladdr 00:07:cb:c8:d1:d2 router STALE
>
> That's all for now, I hope nothing is missing.
>
> Thanks you for your help,
>
> Victor
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