svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
icmp6(4p)
icmp6(4P) Network Protocols icmp6(4P)
NAME
icmp6 - Internet Control Message Protocol for Internet Protocol Version
6
SYNOPSIS
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip_icmp.h>
#include <netinet/icmp6.h>
s = socket(AF_INET6, SOCK_RAW, proto);
t = t_open("/dev/icmp6", O_RDWR);
DESCRIPTION
The ICMP6 protocol is the error and control message protocol used with
Version 6 of the Internet Protocol. It is used by the kernel to handle
and report errors in protocol processing. It is also used for IPv6
neighbor and router discovery, and for multicast group membership
queries and reports. It may also be accessed by programs using the
socket interface or the Transport Level Interface (TLI) for network
monitoring and diagnostic functions. When used with the socket inter‐
face, a "raw socket" type is used. The protocol number for ICMP6, used
in the proto parameter to the socket call, can be obtained from getpro‐
tobyname(3C). ICMP6 file descriptors and sockets are connectionless and
are normally used with the t_sndudata / t_rcvudata and the sendto() /
recvfrom() calls. They may also be used with the sendmsg()/recvgmsg()
calls when sending or receiving ancillary data.
Outgoing packets automatically have an Internet Protocol Version 6
(IPv6) header and zero or more IPv6 extension headers prepended. These
headers are prepended by the kernel. Unlike ICMP for IPv4, the
IP_HDRINCL option is not supported for ICMP6, so ICMP6 applications
neither build their own outbound IPv6 headers, nor do they receive the
inbound IPv6 headers with received data. IPv6 extension headers and
relevant fields of the IPv6 header may be set or received as ancillary
data to a sendmsg(3C) or recvmsg(3C) system call. Each of these fields
and extension headers may also be set on a per socket basis with the
setsockopt(3C) system call. Such "sticky" options are used on all out‐
going packets unless overridden by ancillary data. When any ancillary
data is present with a sendmsg(3C) system call, all sticky options are
ignored for that system call, but subsequently remain configured.
ICMP6 is a datagram protocol layered above IPv6. Received ICMP6 mes‐
sages may be reflected back to users of higher-level protocols such as
TCP or UDP as error returns from system calls. A copy of each ICMP6er‐
ror message received by the system is provided to every holder of an
open ICMP6 socket or TLI descriptor.
SEE ALSO
recvmsg(3C), send(3C), sendmsg(3C), setsockopt(3C), t_rcvudata(3C),
t_sndudata(3C), getprotobyname(3C), recv(3C), inet6(4P), ip6(4P), rout‐
ing(4P)
Conta, A. and Deering, S., RFC 2463, Internet Control Message Protocol
(ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification, The
Internet Society, December 1998.
DIAGNOSTICS
A socket operation may fail with one of the following errors returned:
EISCONN An attempt was made to establish a connection on a
socket which already has one, or when trying to send a
datagram with the destination address specified and
the socket is already connected.
ENOTCONN An attempt was made to send a datagram, but no desti‐
nation address is specified, and the socket has not
been connected.
ENOBUFS The system ran out of memory for an internal data
structure.
EADDRNOTAVAIL An attempt was made to create a socket with a network
address for which no network interface exists.
ENOMEM The system was unable to allocate memory for an inter‐
nal data structure.
ENOPROTOOPT An attempt was made to set an IPv4 socket option on an
IPv6 socket.
EINVAL An attempt was made to set an invalid or malformed
socket option.
EAFNOSUPPORT An attempt was made to bind or connect to an IPv4 or
mapped address, or to specify an IPv4 or mapped ad‐
dress as the next hop.
Oracle Solaris 11.4 10 Nov 1999 icmp6(4P)