On Sun, May 29, 2016 at 08:10:02PM +0200, Stefan Sperling wrote:
> On Sun, May 29, 2016 at 01:25:02PM +0100, Dimitris Papastamos wrote:
> > Hi all,
> >
> > I recently bought a Thinkpad x250 and just noticed that IPv6 stateless
> > autoconfiguraton is not working using iwm(4). It works if I use em(4)
> > instead.
> >
> > Not sure how this could be driver related. I have a t420 running
> > current and it works with iwn(4) and em(4).
> >
> > pf was disabled during the tests. Let me know if I should try anything
> > and I will report back.
>
> Interesting. I believe I can reproduce this, but only on a WPA network.
> The router receives the router solicitation and sends an advertisement.
> It seems the advertisement is not received by iwm(4), but the driver
> does not count an input error in netstat -I iwm0.
> All works fine with iwn(4).
>
> What's odd is that unencrypted wifi doesn't seem to have this problem.
> Can you confirm this?
I just tried with an unencrypted network and it still doesn't work.
I tried both 11g and 11n modes.
$ ifconfig iwm0
iwm0: flags=208843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF6>
mtu 1500
lladdr 18:5e:0f:ae:37:15
index 2 priority 4
groups: wlan egress
media: IEEE802.11 autoselect mode 11n (HT-MCS4 mode 11n)
status: active
ieee80211: nwid ElectricKingdom chan 6 bssid ac:22:0b:32:d5:48 32%
inet6 fe80::1a5e:fff:feae:3715%iwm0 prefixlen 64 scopeid 0x2
inet 10.0.0.6 netmask 0xffffff00 broadcast 10.0.0.255
I am not seeing any input errors with netstat -I iwm0 either.
