I have to write a code where I need to send data using udp protocol in python. I need to set the packet size to the MTU value of the network. Is there any way that I can decide the MTU value of the network writing some code in python?
This answer was taken from http://books.google.co.il/books?id=9HGUc8AO2xQC&pg=PA31&lpg=PA31&dq#v=onepage&q&f=false (page 31)
s = socket.socket(socket.AF_INET,socket.SOCK_DGRAM) hostName = #ip here Port = 9999 s.connect((hostName, Port)) s.setsockopt(socket.IPPROTO_IP, IN.IP_MTU_DISCOVER, IN.IP_PMTUDISC_DO) try: s.send('#' * 1473) except socket.error: print 'The message did not make it' option = getattr(IN, 'IP_MTU', 14) print 'MTU:', s.getsockopt(socket.IPPROTO_IP, option) else: print 'The big message was sent! Your network supports really big packets!'