Re: [iwlwifi] ipv6 connection problem

Hello Bjoern!

/etc/rc.conf:
---
wlans_iwlwifi0="wlan0"
create_args_wlan0="wlanmode sta regdomain ETSI country PT"
ifconfig_wlan0_ipv6="inet6 accept_rtadv"
ifconfig_wlan0="WPA SYNCDHCP"
rtsold_enable="YES"
---

`ifconfig wlan0`:
---
wlan0: flags=8c43<UP,BROADCAST,RUNNING,OACTIVE,SIMPLEX,MULTICAST> metric 0
mtu 1500
        ether 6c:6a:77:df:09:21
        inet6 fe80::6e6a:77ff:fedf:921%wlan0 prefixlen 64 scopeid 0x3
        groups: wlan
        ssid "" channel 6 (2437 MHz 11g)
        regdomain ETSI country PT authmode WPA1+WPA2/802.11i privacy MIXED
        deftxkey UNDEF txpower 30 bmiss 7 scanvalid 60 protmode CTS wme
        roaming MANUAL bintval 0
        parent interface: iwlwifi0
        media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
        status: no carrier
        nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
---

(a) this is unlikely related to IPv6?  The only thing that would do
> is pass down more multicast addresses than with just IPv4 (and that's
> after assoc normally).  I run some on IPv6-only.
> Let me ask you anyway, so we can be sure.  If you remove the IPv6 config,
> does wpa_supplicant associate fine?  (could also be a different
> tooling issue).


With ipv4 wireless work ok and wpa_supplicant associate ok.


> (b) does `ifconfig wlan0 list scan` show your AP when it doesn't?
> If it doesn't that is more likely the problem.  And that remains a problem
> for some conditions I am also facing.  More on 11a than 11g.


`ifconfig wlan0 list scan`:
---
SSID/MESH ID                      BSSID              CHAN RATE    S:N
INT CAPS
MEO-3637C0                        00:06:91:36:37:c0   11   54M  -53:-96
100 EP   RSN BSSLOAD HTCAP WPS WME
MEO-WiFi                          00:06:91:36:37:c2   11   54M  -53:-96
100 E    BSSLOAD HTCAP WME
MEO-3637C0                        00:06:91:36:37:c1   60   54M  -61:-96
100 EP   RSN BSSLOAD HTCAP VHTCAP VHTOPMODE VHTPWRENV WPS WME
MEO-WiFi                          00:06:91:36:37:c6   60   54M  -60:-96
100 E    BSSLOAD HTCAP VHTCAP VHTOPMODE VHTPWRENV WME
---

(c) Then the question is if wpa_supplicant blacklists the network;
> `wpa_cli blacklist` would show.  If it does try the following sequence
> to make it try more often:
> CMD=wpa_cli
> SSID=<your ssid>
> ${CMD} blacklist clear
> ${CMD} disable ${SSID}
> ${CMD} enable ${SSID}
> ${CMD} list_networks
>

`wpa_cli blacklist`:
---
Failed to connect to non-global ctrl_ifname: (nil)  error: Inappropriate
ioctl for device
---


> (d) given you didn't say, what does `freebsd-version -r -u`
> say, just to rule out you are missing the latest wpa fixes.
>

 `freebsd-version -r -u`:
---
14.0-CURRENT
14.0-CURRENT
---
@1ffd352bc25b

(e) what you can do is enable more wpa_supplicant logging; I often use
> wpa_supplicant_flags="-sdd"  in /etc/rc.conf which will log to syslog
> instead
> of the debug file but it'll increase debugging a lot (and warning, it
> may also log keying material).
>

Ok.

Cheers,
-- 
Nuno Teixeira
FreeBSD Committer (ports)