[Arm-netbook] WiFi oddity on Arm netbook

John Winters john at sinodun.org.uk
Fri Feb 19 15:57:56 GMT 2010


Playing around with my netbook I've noticed something odd about it's 
WiFi.  The first thing was that it seems to be forever dropping and 
re-establishing the connection.  The second is that seems to think it 
has two separate WiFi interfaces.  They have different MAC addresses and 
get separate IP addresses from my DHCP server.  Both then seem to be 
accessible for connecting to the netbook with ssh.

On the netbook I have:

midfun at mid-linux-epc:/var$ /sbin/ifconfig
eth0      Link encap:Ethernet  HWaddr 00:60:6E:50:05:39
           UP BROADCAST MULTICAST  MTU:1500  Metric:1
           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
           Interrupt:74 Base address:0x300

lo        Link encap:Local Loopback
           inet addr:127.0.0.1  Mask:255.0.0.0
           UP LOOPBACK RUNNING  MTU:16436  Metric:1
           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0
           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

ra0       Link encap:Ethernet  HWaddr 00:C4:51:00:01:22
           inet addr:10.3.0.184  Bcast:10.3.255.255  Mask:255.255.0.0
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:21745 errors:0 dropped:0 overruns:0 frame:0
           TX packets:556 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:3602491 (3.4 MiB)  TX bytes:39004 (38.0 KiB)

ra1       Link encap:Ethernet  HWaddr 00:19:94:11:40:00
           inet addr:10.3.0.183  Bcast:10.3.255.255  Mask:255.255.0.0
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:9573 errors:0 dropped:0 overruns:0 frame:0
           TX packets:2431 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:1282001 (1.2 MiB)  TX bytes:361010 (352.5 KiB)

The two WiFi MAC addresses aren't even similar.

The other thing of note is that IPv6 seems to be disabled.  If it were 
working it would have picked up a global IPv6 address from my LAN.

John



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