NAME
IP_MULTICAST_LOOP - loop back sent multicast packets to local sockets
LIBRARY
Standard C library (libc, -lc)
SYNOPSIS
#include <netinet/in.h> /* Definition of IP* constants */ #include <sys/socket.h>
int setsockopt(int sockfd, IPPROTO_IP, IP_MULTICAST_LOOP, const int *enable, sizeof(int)); int getsockopt(int sockfd, IPPROTO_IP, IP_MULTICAST_LOOP, int *enabled, sizeof(int));
DESCRIPTION
Set or read a boolean integer argument that determines whether sent multicast packets should be looped back to the local sockets.
ERRORS
See IPPROTO_IP(2const). See setsockopt(2). See ip(7).
HISTORY
Linux 1.2.