How To Generate TCP, IP And UDP Packets In Python
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Solution 1
As suggested by jokeysmurf, you can craft packets with scapy
If you you want to send/receive regular, i.e. non-custom, packets then you should use socket or socketserver:
- http://docs.python.org/library/socket.html#module-socket
- http://docs.python.org/library/socketserver.html#module-SocketServer
For example, to send a TCP HTTP GET request to Google's port 80 use:
import socket
HOST = 'google.com' # The remote host
PORT = 80 # The same port as used by the server
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))
s.send('GET / HTTP/1.1\r\nHost: google.com\r\n\r\n')
data = s.recv(1024)
s.close()
print 'Received', repr(data)
To send UDP instead of TCP change SOCK_STREAM to SOCK_DGRAM.
Solution 2
You can do interactive packet manipulation with scapy.
This article is going to get you started on gluing together an IP packet.
Construction of a tcp packet is as easy as:
packet = IP(src="10.0.0.10")
Author by
Prakash Pandey
Programmer, Open Source Enthusiast & Traveller
Updated on July 18, 2022Comments
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Prakash Pandey almost 2 years
Can anyone tell me the most basic approach to generate UDP, TCP, and IP Packets with Python?