IPV6_MULTICAST_HOPS2const
Multicast hop limit
Usage
#include <netinet/in.h> /* Definition of IP* constants */ #include <sys/socket.h>
int setsockopt(int sockfd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, const int *val, sizeof(int)); int getsockopt(int sockfd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, int *val, sizeof(int));
Library
Standard C library (libc, -lc)
Overview
Set the multicast hop limit for the socket.
A value of -1 means use the route default; otherwise it should be in the range [0, 255].
Errors
See IPPROTO_IPV6(2const). See setsockopt(2). See ipv6(7).