Arduino as a 802.15.4 communication gateway for a computer

Hello,

I have a Zigduino (Arduino with a built-in 802.15.4 chip) and I would like to use it as a gateway for 802.15.4 communications.

I already use Zigduino for 802.15.4 communications, but I would like to interface it with my computer so I could do this :

Linux <---serial---> zigduino <---802.15.4---> nodes

The final step is to send and receive 802.15.4 messages from a python script.

Do you already have such a firmware to do that, and maybe a python library to send and receive messages?

PS: I currently use XStick Digi to do that, but this has limitations (100-byte messages, message reception is kinda slow since they are transfered one byte at a time on the serial communication, …).

Thanks for your help,
Karchnu