From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-vk0-x236.google.com (mail-vk0-x236.google.com [IPv6:2607:f8b0:400c:c05::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id E0D533B260 for ; Fri, 17 Jun 2016 07:06:28 -0400 (EDT) Received: by mail-vk0-x236.google.com with SMTP id t129so111165054vka.1 for ; Fri, 17 Jun 2016 04:06:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to; bh=+1h7Tc9h5pZ/ZrbbrxchGB9F/0O0RY3V3lBwYpQ/ZSg=; b=qzcBhYMenRF5hoqorhBjC9vwoYio9sB3m0rNQmQD2erkj80Rs8VNbjU1H/Go1Zx36Q 5FItI65bGK22m3eFBspmoni7iD7Qu64b75m7xnNsKMlhPyhlkomJES3AOXJ3/CxM68np X9HUPRUBGvS4TZ4bEqNI78Qgojgki/Y/yxjkiOnfGZzVqXIfUVac/SnioPYWu13Kgwm6 1XKwsurwnT5NLXnPuH1IGhpFD4vcBoy+xfRd/3avUkVfg3UIy0WfprLMutd8ZGgUBlHQ Tnas8CfAqbg82DpTua20uxfhu82jl8KYjStF1vriaY3kqhMv/YRKI8JIy7ZY5ARFStdO R5Mg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=+1h7Tc9h5pZ/ZrbbrxchGB9F/0O0RY3V3lBwYpQ/ZSg=; b=NvdqyCWXQuSO/SQZX2TfgQoybp3RAoYOco/r7XUcKFFVP7cbKmTmwlieKn+xvspx+P QDsgeXz5DtKtqutSB+12I8Z0DgaNVh+2ANGsAAHjArJeHsnAL73gVZ9NpJRSGOV6DezA G3iSEHm2Xy7fm/1XgH63RrBX8uyaQhFHrETAxF3T20B/2g8UKqqvhvidelaELvQWpUvw s6wovU0gKl1fumEqXPrvBfsCXveTSDbgca7TazMHZhMZa13WnlgBB44f1v4lumpc4fj8 Te0hB7iE1woEVMJZsfhyRziUM30NlXFLY+NYjTeFJUHdViYXSXn6yNaEzKMweF6GcFzZ ymYg== X-Gm-Message-State: ALyK8tKiiVW0SvSUtzfxRoGyWfj+X7dOoWA4HJJ0UpDaaq6c/UT5Ya0lMSCeycjEcfQ2397t8Dj2eWtRl64wtw== X-Received: by 10.176.3.12 with SMTP id 12mr3957448uat.0.1466135814367; Thu, 16 Jun 2016 20:56:54 -0700 (PDT) MIME-Version: 1.0 Received: by 10.31.94.129 with HTTP; Thu, 16 Jun 2016 20:56:54 -0700 (PDT) From: Simon Dalley Date: Fri, 17 Jun 2016 04:56:54 +0100 Message-ID: To: bloat@lists.bufferbloat.net Content-Type: multipart/alternative; boundary=001a113d1892687013053571588d Subject: [Bloat] ipv6 not quite working for me on internal networks X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Jun 2016 11:06:29 -0000 --001a113d1892687013053571588d Content-Type: text/plain; charset=UTF-8 Hello, First, thanks for all the work to make cerowrt what it is. I am having some difficulty with ipv6 on the "last hop", namely my internal network. Platform: Netgear WNDR3800 Cerowrt version: CeroWrt Toronto 3.10.50-1 / LuCI Trunk (svn-r10459) AQUISS, my UK ISP, provides an ipv6 address range: IPv6 Address 20xx:xxxx:xx55:ae00::/56 Recommended MTU: 1458 bytes I can make ipv6 work when connecting PC host "centaur" directly to the cable modem and running pppd. ping6 ipv6.google.com etc works fine. Reconnecting via the WNDR3800, everything ipv4 related works fine with "centaur" on the se00 subnet. I can also ping6 without problems from the WNDR3800: root@cerowrt:~# ping6 ipv6.google.com PING ipv6.google.com (2a00:1450:4009:80f::200e): 56 data bytes 64 bytes from 2a00:1450:4009:80f::200e: seq=0 ttl=53 time=15.576 ms 64 bytes from 2a00:1450:4009:80f::200e: seq=1 ttl=53 time=14.959 ms 64 bytes from 2a00:1450:4009:80f::200e: seq=2 ttl=53 time=15.156 ms 64 bytes from 2a00:1450:4009:80f::200e: seq=3 ttl=53 time=15.044 ms ^C --- ipv6.google.com ping statistics --- 4 packets transmitted, 4 packets received, 0% packet loss round-trip min/avg/max = 14.959/15.183/15.576 ms but ping6 can't get through from centaur on se00: root@centaur:/etc/network# ping6 ipv6.google.com PING ipv6.google.com(lhr25s02-in-x200e.1e100.net) 56 data bytes From lhr25s02-in-x200e.1e100.net icmp_seq=1 Destination unreachable: No route From lhr25s02-in-x200e.1e100.net icmp_seq=2 Destination unreachable: No route From lhr25s02-in-x200e.1e100.net icmp_seq=3 Destination unreachable: No route From lhr25s02-in-x200e.1e100.net icmp_seq=4 Destination unreachable: No route ^C --- ipv6.google.com ping statistics --- 4 packets transmitted, 0 received, +4 errors, 100% packet loss, time 3024ms For your information, ipv6 routes on centaur are: root@centaur:/etc/network# ip -6 route 20xx:xxxx:xx55:ae10::f48 dev eth0 proto kernel metric 256 expires 84847sec pref medium 20xx:xxxx:xx55:ae10::/64 dev eth0 proto ra metric 100 pref medium 20xx:xxxx:xx55:ae00::/56 via fe80::2cb0:5dff:fea6:94ad dev eth0 proto ra metric 100 pref medium fe80::/64 dev eth0 proto kernel metric 256 pref medium default via fe80::2cb0:5dff:fea6:94ad dev eth0 proto static metric 100 pref medium and on the router are: root@cerowrt:~# ip -6 route default from :: via fe80::f60f:1bff:fe17:8d00 dev pppoe-ge00 proto static metric 1024 default from 20:xx:xxxx:xx00:55ae::/64 via fe80::f60f:1bff:fe17:8d00 dev pppoe-ge00 proto static metric 1024 20xx:xxxx:xx55:ae00::/64 dev gw00 proto kernel metric 256 20xx:xxxx:xx55:ae01::/64 dev gw10 proto kernel metric 256 20xx:xxxx:xx55:ae02::/64 dev sw00 proto kernel metric 256 20xx:xxxx:xx55:ae03::/64 dev sw10 proto kernel metric 256 20xx:xxxx:xx55:ae10::/60 dev se00 proto kernel metric 256 unreachable 20xx:xxxx:xx55:ae00::/56 dev lo proto static metric 2147483647 error -128 fe80::/64 dev se00 proto kernel metric 256 fe80::/64 dev ifb0 proto kernel metric 256 fe80::/64 dev sw10 proto kernel metric 256 fe80::/64 dev sw00 proto kernel metric 256 fe80::/64 dev gw10 proto kernel metric 256 fe80::/64 dev gw00 proto kernel metric 256 fe80::/64 dev ge00 proto kernel metric 256 fe80::/10 dev pppoe-ge00 metric 1 fe80::/10 dev pppoe-ge00 proto kernel metric 256 I'm stumped. Can anybody help? regards, Simon --001a113d1892687013053571588d Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hel= lo,

First, thanks for all the work to make cerowrt what it is.=

I am having some difficulty with ipv6 on the "last hop&q= uot;, namely my internal network.

Platform: Netgear WNDR3800
Cerowrt version: CeroWrt Toronto 3.10.50-1 / LuCI Trunk (svn-r10459= )

AQUISS, my UK ISP, provides an ipv6 address range:
=C2= =A0=C2=A0=C2=A0 IPv6 Address 20xx:xxxx:xx55:ae00::/56
=C2=A0
Recommen= ded MTU: 1458 bytes

I can make ipv6 work when connecting PC host &qu= ot;centaur" directly to the cable
modem and running pppd. ping6 ipv6.google.com etc works fine.

=
Reconnecting via the WNDR3800, everything ipv4 related works fine wit= h "centaur" on the se00 subnet.

I can also ping6 wit= hout problems from the WNDR3800:
=C2=A0 root@cerowrt:~# ping6 ipv6.google.com
=C2=A0 PING ipv6.google.com (2a00:1450:4009:80f::200e): 56 data= bytes
=C2=A0 64 bytes from 2a00:1450:4009:80f::200e: seq=3D0 ttl=3D53 t= ime=3D15.576 ms
=C2=A0 64 bytes from 2a00:1450:4009:80f::200e: seq=3D1 t= tl=3D53 time=3D14.959 ms
=C2=A0 64 bytes from 2a00:1450:4009:80f::200e: = seq=3D2 ttl=3D53 time=3D15.156 ms
=C2=A0 64 bytes from 2a00:1450:4009:80= f::200e: seq=3D3 ttl=3D53 time=3D15.044 ms
=C2=A0 ^C
=C2=A0 --- ipv6.google.com ping statistics ---
= =C2=A0 4 packets transmitted, 4 packets received, 0% packet loss
=C2=A0 = round-trip min/avg/max =3D 14.959/15.183/15.576 ms

but ping6 can'= ;t get through from centaur on se00:
=C2=A0 root@centaur:/etc/network# p= ing6 ipv6.google.com
=C2=A0 PING = ipv6.google.com(lhr25s02-in-x200e.1e100.net) 56 data bytes=C2=A0 From lhr25s02-in-x2= 00e.1e100.net icmp_seq=3D1 Destination unreachable: No route
=C2=A0 = >From lhr25s02-in-x200e.1e100= .net icmp_seq=3D2 Destination unreachable: No route
=C2=A0 From lhr25s02-in-x200e.1e100.net = icmp_seq=3D3 Destination unreachable: No route
=C2=A0 From lhr25s02-in-x200e.1e100.net icmp_seq= =3D4 Destination unreachable: No route
=C2=A0 ^C
=C2=A0 --- ipv6.google.com ping statistics ---
=C2= =A0 4 packets transmitted, 0 received, +4 errors, 100% packet loss, time 30= 24ms

For your information, ipv6 routes on centaur are:
=C2= =A0 root@centaur:/etc/network# ip -6 route
=C2=A0 20xx:xxxx:xx55:ae10::f= 48 dev eth0=C2=A0 proto kernel=C2=A0 metric 256=C2=A0 expires 84847sec pref= medium
=C2=A0 20xx:xxxx:xx55:ae10::/64 dev eth0=C2=A0 proto ra=C2=A0 me= tric 100=C2=A0 pref medium
=C2=A0 20xx:xxxx:xx55:ae00::/56 via fe80::2cb= 0:5dff:fea6:94ad dev eth0=C2=A0 proto ra=C2=A0 metric 100=C2=A0 pref medium=
=C2=A0 fe80::/64 dev eth0=C2=A0 proto kernel=C2=A0 metric 256=C2=A0 pre= f medium
=C2=A0 default via fe80::2cb0:5dff:fea6:94ad dev eth0=C2=A0 pro= to static=C2=A0 metric 100=C2=A0 pref medium

and on the router= are:
=C2=A0 root@cerowrt:~# ip -6 route
=C2=A0 default from :: via f= e80::f60f:1bff:fe17:8d00 dev pppoe-ge00=C2=A0 proto static=C2=A0 metric 102= 4
=C2=A0 default from 20:xx:xxxx:xx00:55ae::/64 via fe80::f60f:1bff:fe1= 7:8d00 dev pppoe-ge00=C2=A0 proto static=C2=A0 metric 1024
=C2=A0 20xx:= xxxx:xx55:ae00::/64 dev gw00=C2=A0 proto kernel=C2=A0 metric 256
=C2=A0= 20xx:xxxx:xx55:ae01::/64 dev gw10=C2=A0 proto kernel=C2=A0 metric 256
= =C2=A0 20xx:xxxx:xx55:ae02::/64 dev sw00=C2=A0 proto kernel=C2=A0 metric 25= 6
=C2=A0 20xx:xxxx:xx55:ae03::/64 dev sw10=C2=A0 proto kernel=C2=A0 met= ric 256
=C2=A0 20xx:xxxx:xx55:ae10::/60 dev se00=C2=A0 proto kernel=C2= =A0 metric 256
=C2=A0 unreachable 20xx:xxxx:xx55:ae00::/56 dev lo=C2=A0= proto static=C2=A0 metric 2147483647=C2=A0 error -128
=C2=A0 fe80::/64 = dev se00=C2=A0 proto kernel=C2=A0 metric 256
=C2=A0 fe80::/64 dev ifb0= =C2=A0 proto kernel=C2=A0 metric 256
=C2=A0 fe80::/64 dev sw10=C2=A0 pr= oto kernel=C2=A0 metric 256
=C2=A0 fe80::/64 dev sw00=C2=A0 proto kerne= l=C2=A0 metric 256
=C2=A0 fe80::/64 dev gw10=C2=A0 proto kernel=C2=A0 m= etric 256
=C2=A0 fe80::/64 dev gw00=C2=A0 proto kernel=C2=A0 metric 256=
=C2=A0 fe80::/64 dev ge00=C2=A0 proto kernel=C2=A0 metric 256
=C2= =A0 fe80::/10 dev pppoe-ge00=C2=A0 metric 1
=C2=A0 fe80::/10 dev pppoe-= ge00=C2=A0 proto kernel=C2=A0 metric 256

I'm stumped. Can = anybody help?

regards, Simon
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