python udp广播

客户端：

import socket, traceback


port = 2345

print "python UDP multi case client test"

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)

data = "Data from pc"
s.bind(("",2345))
for i in range(1,100):
    try:
        data,address=s.recvfrom(2345)
        print "cli get data form", address, ":", data
        s.sendto("client ack", address)
        #data,address = s.recvfrom(1024)
        #print "received %r from %r" % (data, address)
    except (KeyboardInterrupt, SystemExit):
        raise
    except:
        traceback.print_exc()
    
print "test finsh"

服务器端：

#!/usr/bin/env python
# this is the udp broadcast server
import socket, traceback
host = '' # Bind to all interfaces
port = 1234

print "python UDP multi case server test"


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

for i in range(1,100):
    try:
        s.sendto("server here",('192.168.1.255', 2345))
        message, address = s.recvfrom(1234)
        print "Got data from", address,":",message 
        # Acknowledge it.
        s.sendto("I am here", address)
    except (KeyboardInterrupt, SystemExit):
        raise
    except:
        traceback.print_exc()