Python: scapy build ICMP packets

[ ICMP]

send ICMP packets to a target box from spoofed IP

send ICMP every 5 seconds: loop=1, inter5

>>> send(IP(src="1.1.1.1",dst="192.168.0.100")/ICMP()/"hello",loop=1,inter=5,iface="virbr0") ...........

cap date collected on the target device

# tshark -i eth1 icmp Capturing on eth1  0.000000      1.1.1.1 -> 192.168.0.100 ICMP Echo (ping) request  0.000027 192.168.0.100 -> 1.1.1.1      ICMP Echo (ping) reply  5.009880      1.1.1.1 -> 192.168.0.100 ICMP Echo (ping) request  5.009906 192.168.0.100 -> 1.1.1.1      ICMP Echo (ping) reply

send one ICMP packet

>>> send(IP(src="1.1.1.1",dst="192.168.0.100")/ICMP()/"hello",loop=0,iface="virbr0") . Sent 1 packets.

>>> send(IP(src="123.123.123.123",dst="192.168.0.100")/ICMP()/"hello",loop=0,iface="virbr0") . Sent 1 packets.

cap data

94.451988 123.123.123.123 -> 192.168.0.100 ICMP Echo (ping) request 94.452014 192.168.0.100 -> 123.123.123.123 ICMP Echo (ping) reply

>>> p=sr1(IP(src="123.123.123.123",dst="192.168.0.100")/ICMP()/"hello",iface="virbr0") Begin emission: Finished to send 1 packets. * Received 1 packets, got 1 answers, remaining 0 packets >>> p <IP  version=4L ihl=5L tos=0x0 len=33 id=41435 flags= frag=0L ttl=64 proto=icmp chksum=0xa6e2 src=192.168.0.100 dst=123.123.123.123 options=[] |<ICMP  type=echo-reply code=0 chksum=0xbc2d id=0x0 seq=0x0 |<Raw  load='hello' |>>> >>> p.show() ###[ IP ]###  version= 4L  ihl= 5L  tos= 0x0  len= 33  id= 41435  flags=  frag= 0L  ttl= 64  proto= icmp  chksum= 0xa6e2  src= 192.168.0.100  dst= 123.123.123.123  \options\ ###[ ICMP ]###     type= echo-reply     code= 0     chksum= 0xbc2d     id= 0x0     seq= 0x0 ###[ Raw ]###        load= 'hello' >>>