Hi Folks,

Although the problem is not related to Linux directly when I write a Python script to setup an UDP server to listen data from client, I guess it should be about Linux networking. The following is some basic information.

The server is a Linux-hosted box with RHAS 5.0. And it's configured to bond0 with mode = 0 (eth0 and eth1). The host can ping its peers in local network and ping google.com normally.

However, when I prepare for a UDP server script in Python to try to listen all clients from outside and echo out for testing (see below), I always received at a time two pieces of data from client.
-------------
#!/usr/bin/env python
# UDP Echo Server - udpechoserver.py

import socket

host = ''
port = 7878

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind((host, port))

print "Server is starting(%s, %d)" % (host, port)

while 1:
try:
message, address = s.recvfrom(8192)
print "Got data from", address
print message
except KeyboardInterrupt:
print "Server is showdown manually"
break
--------------

I ensure I send out ONE message from client per time, so I guess it should be a configuration typo somewhere. But where is it? Appreciated any reply.

Hi,

Welcome to LQ!

I moved your thread to Linux - Networking