Python how to send a gtp packet using scapy. I tried converting the existing hex stream of gtp message but not able to create it properly. some links are there but not ans is on it. scapy not parsing GTP layers
Quick example just tried, first hex stream is as below
000c29dad1de000c29e3c64d08004500007c00004000401167bbc0a828b3c0a828b2086808680068bf6432ff00580000000128db0000450000540000400040015ea5ca0b289ec0a828b20800bee70000287b0411204bf43d0d0008090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f3031323334353637
enter scapy interactive mode and assign the above hex stream to a variable,
a = '000c29dad1de000c29e3c64d08004500007c00004000401167bbc0a828b3c0a828b2086808680068bf6432ff00580000000128db0000450000540000400040015ea5ca0b289ec0a828b20800bee70000287b0411204bf43d0d0008090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f3031323334353637'
b = a.decode('hex')
B = Ether(b)
B.show()
###[ Ethernet ]###
dst= 00:0c:29:da:d1:de
src= 00:0c:29:e3:c6:4d
type= 0x800
###[ IP ]###
version= 4L
ihl= 5L
tos= 0x0
len= 124
id= 0
flags= DF
frag= 0L
ttl= 64
proto= udp
chksum= 0x67bb
src= 192.168.40.179
dst= 192.168.40.178
\options\
###[ UDP ]###
sport= 2152
dport= 2152
len= 104
chksum= 0xbf64
###[ Raw ]###
load= '2\xff\x00X\x00\x00\x00\x01(\xdb\x00\x00E\x00\x00T\x00\x00@\x00@\x01^\xa5\xca\x0b(\x9e\xc0\xa8(\xb2\x08\x00\xbe\xe7\x00\x00({\x04\x11 K\xf4=\r\x00\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !"#$%&\'()*+,-./01234567'
here scapy does not dissect and show GPRS, but we can still send out, i.e. windows nc
send(B, iface='Intel(R) Dual Band Wireless-N 7260')
so the packet sent out with the interface, showing by wireshark is as