IPV6_ADD_MEMBERSHIP(2const)                        IPV6_ADD_MEMBERSHIP(2const)

NAME
       IPV6_ADD_MEMBERSHIP, IPV6_DROP_MEMBERSHIP - join or leave a multicast
       group

LIBRARY
       Standard C library (libc, -lc)

SYNOPSIS
       #include <netinet/in.h>  /* Definition of IP* constants */
       #include <sys/socket.h>

       int setsockopt(int sockfd, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP,
                      const struct ipv6_mreq *val, sizeof(struct ipv6_mreq));
       int setsockopt(int sockfd, IPPROTO_IPV6, IPV6_DROP_MEMBERSHIP,
                      const struct ipv6_mreq *val, sizeof(struct ipv6_mreq));

DESCRIPTION
       Join or leave a multicast group.

       See IP_ADD_MULTICAST(2const) and IP_DROP_MULTICAST(2const).

ERRORS
       See IPPROTO_IPV6(2const).  See setsockopt(2).  See ipv6(7).

SEE ALSO
       IPPROTO_IPV6(2const), setsockopt(2), ipv6(7)

Linux man-pages 6.17              2025-12-02       IPV6_ADD_MEMBERSHIP(2const)