我不喜欢twisted或scapy,但是使用普通的python套接字很容易做到这一点。它的一个额外优势是它将更加便携。此代码适用于我的有限测试:
#!/usr/bin/python
from socket import *
bufsize = 1024 # Modify to suit your needs
targetHost = "somehost.yourdomain.com"
listenPort = 1123
def forward(data, port):
print "Forwarding: '%s' from port %s" % (data, port)
sock = socket(AF_INET, SOCK_DGRAM)
sock.bind(("localhost", port)) # Bind to the port data came in on
sock.sendto(data, (targetHost, listenPort))
def listen(host, port):
listenSocket = socket(AF_INET, SOCK_DGRAM)
listenSocket.bind((host, port))
while True:
data, addr = listenSocket.recvfrom(bufsize)
forward(data, addr[1]) # data and port
listen("localhost", listenPort)
