Hey hey
Hope this works and gets sorted right, i had to manually set the
in-reply-to header.
I'm one of the people having problems with ipv6 and the rtw89 driver.
i've tested it with the debian bullseye kernel and vanilla 5.13 from
kernel.org
It's about a Realtek 8852 in a Thinkpad E14 Gen2 (amd).
> > The driver handles L2 things only, but IPv6 that is L3 that we don't
> > have special deal.
> > Could I know the problem you met?
Yep that was also my first reaction 1:1, but it's 100% repdoducible.
Ethernet connection works, i get an v4 adress and an v6 one (SLAAC), it
works flawlessly with an USB wifi stick, but the integrated wifi only
gets the link local ipv6 address, an ipv4 one but nothing more.
I've tried to dump router advertisements, but none of them pop up. (As
soon as i attach the ethernet cable/usb wifi stick they're there...)
I have around ~10 other devices in the same network, all of them get
without any hazzle an v6 address via SLAAC and since some other people
seem to have the same problem in the github issue i'm really suspecting
the driver here...
If it maybe helps: this is what i get als output from ip(8) on a wifi
usb stick:
59: wlx801XXXXXXXXX: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq
state UP group default qlen 1000
link/ether 80:1f:XX:XX:XX:XX brd ff:ff:ff:ff:ff:ff
inet 192.168.64.113/24 brd 192.168.64.255 scope global dynamic
noprefixroute wlx801XXXXXXXXX
valid_lft 862412sec preferred_lft 862412sec
inet6 fd00::1245:XXXX:XXXX:XXXX/64 scope global dynamic noprefixroute
valid_lft 6718sec preferred_lft 3118sec
inet6 2a02:8071:2cc3:XXX:XXXX:XXXX:XXXX:XXXX/64 scope global
dynamic noprefixroute
valid_lft 6718sec preferred_lft 3118sec
inet6 fe80::XX:XXXX:XXXX:XXXX/64 scope link noprefixroute
valid_lft forever preferred_lft forever
and this is what i get on the 8852:
4: wlp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP group default qlen 1000
link/ether 74:4c:XX:XX:XX:XX brd ff:ff:ff:ff:ff:ff
inet 192.168.64.112/24 brd 192.168.64.255 scope global dynamic
noprefixroute wlp3s0
valid_lft 863997sec preferred_lft 863997sec
inet6 fe80::XXXX:XXXX:XXXX:XXX/64 scope link noprefixroute
valid_lft forever preferred_lft forever
i'd be glad to help to debug this any further, currently i'm also out of
ideas how the driver could impact L3...
> I'm not sure if ISP limits the throughput or not.
> My suggestion is to have another PC connected to AP with ethernet cable.
> Then,
> do performance test between two PCs to check the difference between IPv4
> and IPv6.
Please do not confused by this throughput problem, that's completely
independent.
The ipv4 performance of the driver seems to be enough, though i did not
measure it, but it's also not noticable slow :)
The only problem for me personally is that i only have a DS-Lite
connection from my ISP, which means for v4 i'm behind a carrier grade
nat - and the gateway (of the carrier) where my v4 traffic is routed
through seems to be heavily overloaded during some hours of the day.
So no worries for the driver here at all ;)
Thanks!
Cheers
Jan
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