[Click] Help!! Madwifi Monitor Mode vs Ad-Hoc Mode... Annotations?

[g91d5350 at campus.ru.ac.za]

Javier, Harald - Thanks, you guys rock!

The psuedo-ibss code works a treat, thanks!  The version in my  
/click/conf/wifi seems to be out-of-date (although my click should be  
current), so I really appreciate having some working sample code as a  
starting point.

But when I try to ping across the psuedo-ibss connection, I get  
duplicate packets (see ping log below).  Yet SSH seems to work fine.   
Any idea why this would be?

I am still battling to understand why I have to encapsulate my frames  
and can't send them RAW.  As far as I can see, I can deliver RAW  
frames across the network OK ... I just seem to have problems  
forwarding them to Linux.  Oh well... by this time next week I'll have  
twice the Click experience I have now; I'll learn.  :-)

Gratefully,
- Kevin

PING 192.168.1.31 (192.168.1.31) 56(84) bytes of data.
64 bytes from 192.168.1.31: icmp_seq=1 ttl=64 time=1.68 ms
64 bytes from 192.168.1.31: icmp_seq=1 ttl=64 time=2.41 ms (DUP!)
64 bytes from 192.168.1.31: icmp_seq=1 ttl=64 time=3.18 ms (DUP!)
64 bytes from 192.168.1.31: icmp_seq=1 ttl=64 time=5.80 ms (DUP!)
64 bytes from 192.168.1.31: icmp_seq=1 ttl=64 time=6.58 ms (DUP!)
64 bytes from 192.168.1.31: icmp_seq=1 ttl=64 time=7.80 ms (DUP!)
64 bytes from 192.168.1.31: icmp_seq=1 ttl=64 time=9.33 ms (DUP!)
64 bytes from 192.168.1.31: icmp_seq=1 ttl=64 time=10.4 ms (DUP!)
64 bytes from 192.168.1.31: icmp_seq=1 ttl=64 time=11.5 ms (DUP!)
64 bytes from 192.168.1.31: icmp_seq=1 ttl=64 time=12.1 ms (DUP!)
64 bytes from 192.168.1.31: icmp_seq=1 ttl=64 time=14.6 ms (DUP!)
64 bytes from 192.168.1.31: icmp_seq=1 ttl=64 time=15.4 ms (DUP!)


Quoting Javier Sánchez <javier.recacha at gmail.com>:

> hi,
>
> at click/conf/wifi you have some click examples. As Harald says u have
> to pull & push the correct headers into the packet.
>
> u can begin with this basic pseudo-ibss script.
>
> regards
> Javier Sánchez
>
>
>
> // *** CONFIGURATION ***
>
> define($IP_ADR 6.0.0.1/8)
> define($MAC_ADR 00:1B:11:BB:F1:78)  //change, use u real hw mac
> define($BSSID 00:00:00:00:00:00)
> define($TXPOWER 63)
> define($TXRATE 22)
> define($DEVICE ath0)
>
>
> // *** SEND ***
>
> FromHost(fake1, $IP_ADR, ETHER $MAC_ADR)
>   -> Queue()
>   -> WifiEncap(0, $BSSID)
>   -> SetTXPower($TXPOWER)
>   -> SetTXRate($TXRATE)
>   -> RadiotapEncap()
>   -> ToDevice($DEVICE);
>
>
>
> // *** RECEIVE ***
>
> FromDevice($DEVICE, PROMISC true, OUTBOUND true)
>   -> RadiotapDecap()
>   -> FilterPhyErr()
>   -> FilterTX()
>   -> WifiDupeFilter()
>   -> WifiDecap()
>   -> SetPacketType(HOST)
>   -> ToHost(fake1);
>