Difference between revisions of "Python: UDP Multicast"

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(New page: Transmitter import socket MCAST_GRP = '224.1.1.1' MCAST_PORT = 5007 sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP) sock.setsockopt(socket.IPPROTO_IP,...)
 
 
(One intermediate revision by the same user not shown)
Line 1: Line 1:
Transmitter
+
Tambahkan routing
 +
 
 +
sudo su
 +
route add -net 224.0.0.0 netmask 255.0.0.0 eth0
 +
ifconfig eth0 allmulti
 +
 
 +
 
 +
Script Transmitter
  
 
  import socket
 
  import socket
Line 7: Line 14:
 
   
 
   
 
  sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
 
  sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
  sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 2)
+
  sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 10)
 
  sock.sendto("robot", (MCAST_GRP, MCAST_PORT))
 
  sock.sendto("robot", (MCAST_GRP, MCAST_PORT))
  
  
Receiver
+
Script Receiver
  
 
  import socket
 
  import socket

Latest revision as of 05:35, 7 May 2014

Tambahkan routing

sudo su
route add -net 224.0.0.0 netmask 255.0.0.0 eth0
ifconfig eth0 allmulti


Script Transmitter

import socket

MCAST_GRP = '224.1.1.1'
MCAST_PORT = 5007

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 10)
sock.sendto("robot", (MCAST_GRP, MCAST_PORT))


Script Receiver

import socket
import struct 

MCAST_GRP = '224.1.1.1'
MCAST_PORT = 5007

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind((, MCAST_PORT))
mreq = struct.pack("4sl", socket.inet_aton(MCAST_GRP), socket.INADDR_ANY)

sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)

while True:
  print sock.recv(10240)


Referensi