Macros
#define	IPV6_JOIN_GROUP 17
	Join a multicast group (set) More...

#define	IPV6_LEAVE_GROUP 18
	Leave a multicast group (set) More...

#define	IPV6_MULTICAST_HOPS 19
	Hop limit for multicast (get/set) More...

#define	IPV6_MULTICAST_IF 20
	Multicast interface (get/set) More...

#define	IPV6_MULTICAST_LOOP 21
	Multicasts loopback (get/set) More...

#define	IPV6_UNICAST_HOPS 22
	Hop limit for unicast (get/set) More...

#define	IPV6_V6ONLY 23
	IPv6 only – no IPv4 (get/set) More...

Detailed Description

These are the various socket-level options that can be accessed with the setsockopt() and getsockopt() functions for the IPPROTO_IPV6 level value.

Not all of these are currently supported, but they are listed for completeness.

See also: Socket-level options; IPv4 protocol level options; UDP protocol level options; UDP-Lite protocol level options

Macro Definition Documentation

#define IPV6_JOIN_GROUP 17

Join a multicast group (set)

#define IPV6_LEAVE_GROUP 18

Leave a multicast group (set)

#define IPV6_MULTICAST_HOPS 19

Hop limit for multicast (get/set)

#define IPV6_MULTICAST_IF 20

Multicast interface (get/set)

#define IPV6_MULTICAST_LOOP 21

Multicasts loopback (get/set)

#define IPV6_UNICAST_HOPS 22

Hop limit for unicast (get/set)

#define IPV6_V6ONLY 23

IPv6 only – no IPv4 (get/set)