[Voyage-linux] How to realize a Point to Point Connection

[Punky Tse]

Tommaso,

I got your meaning wrong...  I thought you are talking about long 
distance link.

What mode (a/b/g) do you run master mode before and what mode for 
Ad-hoc?  It sounds like you set 11b/g mode in master and then switch to 
11a for ad-hoc?   If using 11a, does the antenna support 5 GHz?

The one of the difference betweeen pre1 nad pre3 is madwifi driver.  
pre1 uses madwifi-old while pre3 uses madwifi-ng (r1408).  I had tested 
the madwifi-ng with Ad-hoc and it can even communicate to RM2 (prism54) 
with good throughput in 11b/g mode (e.g. downloading Apple movie 
trailer).  If pre3 makes no difference then its not driver problem.

- Punky

Punky Tse wrote:
> Tommaso,
>
> It is a tricky for tuning madwifi for long distance link. See:
>
> http://madwifi.org/wiki/UserDocs/LongDistance
>
> Punky
>
> Tommaso wrote:
>>
>> Hi to all,
>>
>> I’m actually using the 0.2pre1 version over a Wrap board with one CM9 
>> card. I have no problem having the ath0 interface working in Master 
>> Mode, I get a very good Access Point. Now I’m interested in testing 
>> the possibility to perform long (>5 Km) point to point links. I’m not 
>> a 802.11a-guru, so maybe I’m wrong, but I have put the ath interface 
>> of both clients in Ad-Hoc mode with the same SSID. I get the two 
>> clients connecting each other but with a very very low speed < 1Mps, 
>> the iwconfig reports 0 Kbps even if the received signal is bigger 
>> than -18 dBm (when the two clients are few meters away). I have 
>> changed the radio cards and the antenna, but it definitely seem a 
>> software problem.
>>
>> It’s a problem of the madwifi driver included in the 0.2pre1?
>>
>> Tomorrow I will update to the 0.2pre3 version, but I would to know if 
>> the Ad-Hoc mode is the best one for a point to point link; in fact, 
>> reading the madwifi-ng documentation I am a bit confused since you 
>> can use both the Ad-Hoc (iwconfig) mode and the WDS functionality 
>> putting one client in STA mode and the other one in AP mode.
>>
>> Thanks.
>>
>> Tommaso
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> Voyage-linux mailing list
>> Voyage-linux at list.voyage.hk
>> http://list.voyage.hk/mailman/listinfo/voyage-linux
>>   
>
>


-- 
Regards,
Punky
P U N K N ! X  . c o m
Technology + Lifestyle
(http://www.punknix.com)

Voyage Linux
(http://www.voyage.hk/software/voyage.html)