Re: Possible key to solution [was: Does anyone understand NetworkManager?]

[David Abrahams <dave boost-consulting com>]

David Abrahams <dave boost-consulting com> writes:

> "Darren Albers" <dalbers gmail com> writes:
>
>> On 9/1/06, David Abrahams <dave boost-consulting com> wrote:
>>
>>> 2. Once I've stopped NM, killed nm-applet, set up
>>>    /etc/network/interfaces, and done ifup to activate an interface,
>>>    when I try to undo that process and restart NM, it seems as though it
>>>    can't see any interfaces at all.  What am I doing wrong?
>>
>> This is because the Ubuntu Maintainer modified NetworkManager so it
>> would not manage ANY interfaces that has any configuration beyond dhcp
>> in /etc/network/interfaces.
>
> Now wait a minute.  That's not what happens for me at all.  even if I
> comment everything but lo setup lines out of /etc/network/interfaces,
> I still see "no network devices found" or something when I hover the
> mouse over nm-applet.  After about 20 minutes of dickering around with
> it, bringing dbus up and down, reconfiguring eth1, etc., now I have
> the wireless interface back, but eth0 is still missing.
>

After a reboot, eth0 is back.  Still, it took over a minute after I
unplugged my cable before I had a wireless connection again.  Most of
that time was spent with this at the tail of /var/log/syslog, as
usual:

Sep  4 01:44:13 localhost NetworkManager: <information>^Iwpa_supplicant(6577): Setting scan request: 0 sec 0 usec
Sep  4 01:44:13 localhost NetworkManager: <information>^Iwpa_supplicant(6577): State: DISCONNECTED -> SCANNING
Sep  4 01:44:13 localhost NetworkManager: <information>^Iwpa_supplicant(6577): Trying to associate with SSID 'peloton'
Sep  4 01:44:13 localhost NetworkManager: <information>^Iwpa_supplicant(6577): Cancelling scan request
Sep  4 01:44:13 localhost NetworkManager: <information>^Iwpa_supplicant(6577): WPA: clearing own WPA/RSN IE
Sep  4 01:44:13 localhost NetworkManager: <information>^Iwpa_supplicant(6577): Automatic auth_alg selection: 0x1
Sep  4 01:44:13 localhost NetworkManager: <information>^Iwpa_supplicant(6577): WPA: No WPA/RSN IE available from association info
Sep  4 01:44:13 localhost NetworkManager: <information>^Iwpa_supplicant(6577): WPA: Set cipher suites based on configuration
Sep  4 01:44:13 localhost NetworkManager: <information>^Iwpa_supplicant(6577): WPA: Selected cipher suites: group 8 pairwise 8 key_mgmt 2
Sep  4 01:44:13 localhost NetworkManager: <information>^Iwpa_supplicant(6577): WPA: clearing AP WPA IE

======== Long hang right here =====

after which it continues with:

Sep  4 01:44:15 localhost NetworkManager: <information>^Iwpa_supplicant(6577): learing AP RSN IE
Sep  4 01:44:15 localhost NetworkManager: <information>^Iwpa_supplicant(6577): WPA: using GTK TKIP
Sep  4 01:44:15 localhost NetworkManager: <information>^Iwpa_supplicant(6577): WPA: using PTK TKIP
Sep  4 01:44:15 localhost NetworkManager: <information>^Iwpa_supplicant(6577): WPA: using KEY_MGMT WPA-PSK
Sep  4 01:44:15 localhost NetworkManager: <information>^Iwpa_supplicant(6577): WPA: Set own WPA IE default - hexdump(len=24): dd 16 00 50 f2 01 01 00 00 50 f2 02 01 00 00 50 f2 02 01 00 00 50 f2 02
Sep  4 01:44:15 localhost NetworkManager: <information>^Iwpa_supplicant(6577): No keys have been configured - skip key clearing
Sep  4 01:44:15 localhost NetworkManager: <information>^Iwpa_supplicant(6577): wpa_driver_wext_set_drop_unencrypted
Sep  4 01:44:15 localhost NetworkManager: <information>^Iwpa_supplicant(6577): State: SCANNING -> ASSOCIATING
Sep  4 01:44:15 local

So I'm really not sure that moving the ifupdown script made any difference.
-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com