IPV6_RECVPKTINFO2const
Set delivery of the ipv6_pktinfo control message on incoming datagrams
Usage
#include <netinet/in.h> /* Definition of IP* constants */ #include <sys/socket.h>
int setsockopt(int sockfd, IPPROTO_IPV6, IPV6_RECVPKTINFO, const int *enable, sizeof(int));
Library
Standard C library (libc, -lc)
Overview
Set delivery of the IPV6_PKTINFO control message on incoming datagrams. Such control messages contain a struct in6_pktinfo, as per RFC 3542.
Allowed only for SOCK_DGRAM or SOCK_RAW sockets.
Errors
See IPPROTO_IPV6(2const). See setsockopt(2). See ipv6(7).