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From:   Pkshih <pkshih@realtek.com>
To:     Jan Reusch <jan@jreusch.de>,
        "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: RE: Difficulty connecting to AP using rtw89
Thread-Topic: Difficulty connecting to AP using rtw89
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Date:   Mon, 9 Aug 2021 05:52:04 +0000
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> -----Original Message-----
> From: Jan Reusch [mailto:jan@jreusch.de]
> Sent: Saturday, August 07, 2021 4:19 AM
> To: linux-wireless@vger.kernel.org; Pkshih
> Subject: RE: Difficulty connecting to AP using rtw89
> 
> 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...)

Could you provide your dump of USB wifi stick and rtw89?
If possible, I'd like to have tcpdump of interfaces locally and sniffer
packets in the air. Then, I can check the good and bad cases, and check
if any transmitting data is eaten by rtw89.

If the data have privacy problem, please send me directly.

[...]

Thank you
--
Ping-Ke