Thank you! I'll look into it in the morning. Do you do a tos inherit on the setup? Seems useful (copies the entire tos field, including ecn bits,<br>to the header and back)<br><br>Also you might want to look over the patch at:<br>
<br><a href="https://lists.bufferbloat.net/pipermail/bloat-devel/2013-June/000435.html">https://lists.bufferbloat.net/pipermail/bloat-devel/2013-June/000435.html</a><br><br>You can see the effect on (a saturated) 6in4 system via tc class show dev your_device. I only slammed it in yesterday so I haven't been able to A/B the results against a system without the patch, so no warrantees express, written or implied....<br>
<br><div class="gmail_quote">On Wed, Jun 12, 2013 at 1:00 AM, Steven Barth <span dir="ltr"><<a href="mailto:cyrus@openwrt.org" target="_blank">cyrus@openwrt.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Not having looked at your particular 6in4 setup but I can imagine where the issue comes from.<br>
<br>
Source-based IPv6 routing was introduced a few weeks ago to properly support multiple IPv6 uplink-interfaces. Therefore OpenWrt only let's you route through the tunnel if it knows you have a suitable source address.<br>
<br>
That means you now have to add your routed /64 or /48 in the 6in4 tunnel settings (UCI-variable ip6prefix) either through the WebUI or in /etc/config/network directly. See: <a href="http://wiki.openwrt.org/doc/uci/network6#in4.tunnel.henet.tunnelbroker.sixxs.static.tunnel" target="_blank">http://wiki.openwrt.org/doc/<u></u>uci/network6#in4.tunnel.henet.<u></u>tunnelbroker.sixxs.static.<u></u>tunnel</a><br>
<br>
In addition configuring the downstream interfaces using ip6addr is not supported any more. One has to use the ip6assign/ip6hint/ip6class method as described here:<br>
<a href="http://wiki.openwrt.org/doc/uci/network6#downstream.configuration.for.lan-interfaces" target="_blank">http://wiki.openwrt.org/doc/<u></u>uci/network6#downstream.<u></u>configuration.for.lan-<u></u>interfaces</a><br>
<br>
If you still use ip6addr instead of the new mechanism you might simply get "Network Unreachable" errors or - in newer versions - "Source address failed ingress/egress policy".<br>
<br>
<br>
I hope this helps.<br>
<br>
<br>
Cheers,<br>
<br>
Steven<div><div class="h5"><br>
<br>
<br>
<br>
On 12.06.2013 08:10, Dave Taht wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
And is at:<br>
<br>
<a href="http://snapon.lab.bufferbloat.net/~cero2/cerowrt/wndr/3.8.13-7/" target="_blank">http://snapon.lab.bufferbloat.<u></u>net/~cero2/cerowrt/wndr/3.8.<u></u>13-7/</a><br>
<br>
I've had it up and running a few days on a couple routers,<br>
<br>
and yes, I'm still trying to take some time off but:<br>
<br>
+ can't crash it over wifi anymore<br>
+ AQM + gui is coming along, am looking at gargoyle's methods a bit now...<br>
<br>
- Known bug: 6in4 does not work via the gui or openwrt config file -<br>
this bug has existed for about a month now<br>
and I haven't looked into it. I did look into fixing fq_codel<br>
performance under 6in4, and that patch is in here,<br>
so after a bit more testing I'll try to get that upstream...<br>
<br>
- the results I get from 802.11e are even more dismal than usual when<br>
the VI and VO queues are in full use.<br>
+ For purely best effort wifi traffic, things look pretty good.<br>
<br>
I am seriously considering disabling 802.11e negotiation in the next<br>
release.<br>
<br>
I did prove 6in4 is working with the std-from-hurricane-electric script,<br>
so it's a bug in netifd, cero's config, or elsewhere at the openwrt level...<br>
<br>
modprobe ipv6<br>
ip tunnel add he-ipv6 mode sit remote $the_he_tunnel local $my_local_ip<br>
ttl 255 tos inherit<br>
<br>
# Note that I don't know if openwrt turns on tos inherit or not, btw,<br>
need to look into it. It's potentially useful<br>
<br>
ip link set he-ipv6 up<br>
ip addr add $mylink/64 dev he-ipv6<br>
ip route add ::/0 dev he-ipv6<br>
ip -f inet6 addr<br>
<br>
<br>
--<br>
Dave Täht<br>
<br>
Fixing bufferbloat with cerowrt:<br>
<a href="http://www.teklibre.com/cerowrt/subscribe.html" target="_blank">http://www.teklibre.com/<u></u>cerowrt/subscribe.html</a><br>
<br>
<br></div></div>
______________________________<u></u>_________________<br>
Cerowrt-devel mailing list<br>
<a href="mailto:Cerowrt-devel@lists.bufferbloat.net" target="_blank">Cerowrt-devel@lists.<u></u>bufferbloat.net</a><br>
<a href="https://lists.bufferbloat.net/listinfo/cerowrt-devel" target="_blank">https://lists.bufferbloat.net/<u></u>listinfo/cerowrt-devel</a><br>
<br>
</blockquote>
<br>
______________________________<u></u>_________________<br>
Cerowrt-devel mailing list<br>
<a href="mailto:Cerowrt-devel@lists.bufferbloat.net" target="_blank">Cerowrt-devel@lists.<u></u>bufferbloat.net</a><br>
<a href="https://lists.bufferbloat.net/listinfo/cerowrt-devel" target="_blank">https://lists.bufferbloat.net/<u></u>listinfo/cerowrt-devel</a><br>
</blockquote></div><br><br clear="all"><br>-- <br>Dave Täht<br><br>Fixing bufferbloat with cerowrt: <a href="http://www.teklibre.com/cerowrt/subscribe.html" target="_blank">http://www.teklibre.com/cerowrt/subscribe.html</a>