Re: [B.A.T.M.A.N.] help for batman-adv with monitor WiFi card

[Antonio Quartulli <antonio@meshcoding.com>]

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Hi jammy,

On 09/10/14 05:26, jammy wrote:
> 
> Hi all，
> 
> Now i have build a mesh network with batman-adv routing algorithm（batman-adv-2014.2.0）and Linux 3.3.8. Each mesh node have one WiFi card which is configued to the adhoc mode （according to the suggestion of openmesh website）and 11A protocol.
> 
> But the data rate between two mesh nodes is only 8Mbps，while if I configure the same WiFi card in mesh node to AP mode and client mode，the datarate between them can achive 40Mbps.
> 
> I think the reason of the low data rate is caused by the adhoc mode（my wireless driver is ath9k，the datarate of adhoc mode is slower indeed）
> 
> My questions are：
> 1. How can I raise the data rate to 30M+ if I use the adhoc mode？

As far as I know ath9k works usually well in adhoc mode and can reach
much higher datarates. In any case the problem is likely to be ath9k
specific, so batman-adv can't do much for that.

> 2. can I use the monitor mode of WiFi card with batman-adv？someone tells that it can be done，but when I batctl addif wlan0 （wlan0 is configured in monitor），it shows that interface type not support by batman-adv.
> 

you cannot add a monitor interface to batman-adv (as explained by the
message), but you should be able to create to interfaces: an adhoc one
to use with batman-adv and a monitor one to use for your purposes.

This is what most people do.


Cheers,

-- 
Antonio Quartulli


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