Hello everyone,
I've just started to learn about how wireless network operates, and specifically 802.11 standard. I then thought about how the Linux works it out. In particular, normally when I want to send a ethernet frame over wired network, I use SOCK_RAW and "fill in the form", after which send() is invoked to write those bytes to the NIC.
However, wouldn't it be a problem with 802.11, since the frame header is of different form than Ethernet? How is it resolved then, or does the OS/wireless card do the transformation for me? Woudn't this be a problem with all applications that assumes Ethernet to be Data Link protocol?
Almost the same issue, but expressed differently: I've got a WinXP laptop, with Wireshark installed. The wireless card is Atheros something. When I try to sniff some packets from this interface, they turned out to be of Ethernet, so I'm totally lost on where the transformation happens.
Any experience? And thanks in advance.
Regards,
SG.
