On 06/04/2012 05:46 PM, Nick Aubert wrote:
Hello all,
I'm attempting to get a host with an Centrino Advanced-N + WiMAX 6250
card to attach to a Motorola PMP 320 WiMax access point. The Motorola
access point is designed to communicate with a Canopy cluster
subscriber module, and I'm trying to use the Intel card in place of
the subscriber module.
The access point is broadcasting in the 3.5 GHz range. The Intel card
supports this range, but I don't actually see any signal even though
the two machines are in a shielded room a few meters away from each
other.
If I take the host with the Centrino out of the protected room I can
detect signals from commercial carriers like Clear, so the drivers at
least seem to be working:
# wimaxcu scan wide
Network found.
NSP : CLEAR
ID : 2
Signal : Good
RSSI : -75 dBm
CINR : 11 dB
Network Type: Home Network
Activated.
...etc...
If I put it back in the room with the Motorola access point I get
nothing. I suspect that part of the problem might be that none of the
configurations for the Centrino are designed to work in the 3.5 GHz
range. If I look through /var/lib/wimax/WiMAX_DB.bin and
/var/lib/wimax/WiMAX_Def.bin there are definitions for carriers, but
nothing above 2.685 GHz. I tried editing the files to trick wimaxcu
to think these carriers were in the 3.5 GHz, but then it couldn't see
anything at all.
Are there lower level commands I can use to scan for Wimax signals
without having carriers defined? Do I need to do something to make
the card look around 3.5 GHz? Can anyone say for certain that this
setup will definitely not work?
Thanks.
-Nick Aubert
I have tried to use the WiMAX 6250 card to connect to a Motorola
PMP320 in 3.3 Ghz + freeradius a few months ago:
- I was able to scan the network (pay attention to the NSP_ID, this
must be carefully configured, I can remembrer that it has to be
configured as a hex value in the WiMAX_XXX.bin files)
- I could see in the freeradius logs that the EAP Authentication did
start. So the radio stuff was OK in 3.3 Ghz
- BUT I have never managed to perform a complete EAP association: each
time the card was supposed to present its keying material to the EAP
server, it just broke up the eap conversation. I was wondering if the
allowed certificates are hard-coded inside the WiMAX 6250 card firmware
? I have never had any answer on that so far.
Hope it helps
PS: Keep us informed if you make it work !
Hubert Euzenot
_______________________________________________
wimax mailing list
[email protected]
http://lists.linuxwimax.org/listinfo/wimax
