I'm trying to transmit a data frame (using scapy in ubuntu 18.04) between my desktop and laptop. I would like the MSDU to just be some raw data and not an upper layer frame. For whatever reason I am unable to detect transmitted packets between the devices.
Both devices are set in monitor mode and are connected to the same frequency/channel. For example, my desktop has wireless interface wlp4s0 which I set up as follows:
sudo ifconfig wlp4s0 down
sudo iwconfig wlp4s0 mode monitor
sudo ifconfig wlp4s0 up
sudo iwconfig wlp4s0 channel n
When I check iw dev or iwconfig I can see that both wireless interfaces are in monitor mode and at the same frequency with a non-zero tx-power.
I have no problems sniffing the channel using scapy with the following code:
sniff(iface = "wlp4s0", prn = output)
Where prn just prints out the summary of any packet.
When I try to transmit I use the following code on one device:
header = Dot11(
addr1 = "00:16:ea:12:34:56",
addr2 = "00:16:ea:12:34:56",
addr3 = "ff:ff:ff:ff:ff:ff",
type = 2,
subtype = 0,
FCfield = 0)
data = "testtesttesttest"
packet = header / data
sendp(data, iface= "wlp4s0", loop = 1, inter = 0.100)
Despite the transmitting device stating the packet has been transmitted, the other devices cannot see any of the packets while sniffing the channel. Similarly, while using 'ifconfig' the tx_count for the interface is not increasing.
I've tried switching roles on both devices, but have also had no luck.
Any help would be greatly appreciated, thanks!
