1 .\" This man page is Copyright (C) 2000 Andi Kleen <ak@muc.de>.
2 .\" Permission is granted to distribute possibly modified copies
3 .\" of this page provided the header is included verbatim,
4 .\" and in case of nontrivial modification author and date
5 .\" of the modification is added to the header.
6 .\" $Id: ipv6.7,v 1.4 2001/08/15 18:01:06 hanataka Exp $
8 .\" Japanese Version Copyright (c) 2001 NAKANO Takeo all rights reserved.
9 .\" Translated Sun 18 Feb 2001 by NAKANO Takeo <nakano@apm.seikei.ac.jp>
10 .\" Updated Wed 4 Apr 2001 by Yuichi SATO <ysato@h4.dion.ne.jp>
11 .\" Updated Sat Dec 17 09:31:21 JST 2005 by Yuichi SATO <ysato444@yahoo.co.jp>
12 .\" Updated 2007-05-28, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>, LDP v2.50
13 .\" Updated 2008-08-07, Akihiro MOTOKI, LDP v3.05
15 .\"WORD: flow identifier ¥Õ¥í¡¼»ØÄê»Ò
16 .\"WORD: control message À©¸æ¥á¥Ã¥»¡¼¥¸
17 .\"WORD: incoming ¡Á ¼õ¿® (¥Ñ¥±¥Ã¥È¡¢¥Ç¡¼¥¿¥°¥é¥à)
18 .\"WORD: outgoing ¡Á Á÷¿® (¥Ñ¥±¥Ã¥È¡¢¥Ç¡¼¥¿¥°¥é¥à)
19 .\"WORD: asynchronous error ÈóƱ´ü¥¨¥é¡¼
21 .TH IPV6 7 2009-02-28 "Linux" "Linux Programmer's Manual"
23 ipv6, AF_INET6 \- Linux ¤Î IPv6 ¥×¥í¥È¥³¥ë¼ÂÁõ
25 .B #include <sys/socket.h>
27 .B #include <netinet/in.h>
29 .IB tcp6_socket " = socket(AF_INET6, SOCK_STREAM, 0);"
31 .IB raw6_socket " = socket(AF_INET6, SOCK_RAW, " protocol ");"
33 .IB udp6_socket " = socket(AF_INET6, SOCK_DGRAM, " protocol ");"
35 Linux 2.2 ¤Ç¤Ï¡¢Internet Protocol, version 6 ¤ò
36 ¥ª¥×¥·¥ç¥ó¤È¤·¤Æ¼ÂÁõ¤·¤Æ¤¤¤ë¡£
37 ¤³¤Î man ¥Ú¡¼¥¸¤Ç¤Ï¡¢Linux ¥«¡¼¥Í¥ë¤È glibc 2.1 ¤Ç¤Î¼ÂÁõ¤Ë´ð¤Å¤¤¤Æ¡¢
38 IPv6 ¤Î´ðËÜŪ¤Ê API ¤ò²òÀ⤹¤ë¡£
39 ¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Ï BSD ¥½¥±¥Ã¥È¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤ò¤â¤È¤Ë¤·¤Æ¤¤¤ë¡£
46 »²¾È) ¤È¤Û¤Ü¸ß´¹¤Ë¤Ê¤ë¤³¤È¤òÌܻؤ·¤Æ¤¤¤ë¡£
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50 ¥½¥±¥Ã¥È¤ò²¿¤é¤«¤Î¥×¥í¥»¥¹¤Ë¥Ð¥¤¥ó¥É¤¹¤ë¤Ë¤Ï¡¢
55 ¤«¤é¥³¥Ô¡¼¤·¤Æ¤¯¤ëɬÍפ¬¤¢¤ë¡£
58 ¤âÍѤ¤¤ë¤³¤È¤¬¤Ç¤¡¢¤³¤ì¤ÏÄê¿ô¼°¤ËŸ³«¤µ¤ì¤ë¡£
59 ¤³¤ì¤é¤Îξ¼Ô¤Ï¥Í¥Ã¥È¥ï¡¼¥¯¥Ð¥¤¥È¥ª¡¼¥À¡¼¤Ç¤¢¤ë¡£
61 IPv6 ¤Î¥ë¡¼¥×¥Ð¥Ã¥¯¥¢¥É¥ì¥¹ (::1) ¤Ï global ÊÑ¿ô
63 ¤«¤é¼èÆÀ¤Ç¤¤ë¡£½é´ü²½¤Ë¤Ï
64 .B IN6ADDR_LOOPBACK_INIT
67 v4-mapped-on-v6 ¥¢¥É¥ì¥¹·¿¤òÍѤ¤¤ë¤³¤È¤Ç¡¢
68 IPv4 Àܳ¤â v6 API ¤Ç°·¤¦¤³¤È¤¬¤Ç¤¤ë¡£
69 ¤³¤¦¤¹¤ì¤Ð¡¢¥×¥í¥°¥é¥à¤Ï v6 ¤Î API ¤ò¥µ¥Ý¡¼¥È¤¹¤ë¤À¤±¤Ç¡¢
70 ξÊý¤Î¥×¥í¥È¥³¥ë¤ò¥µ¥Ý¡¼¥È¤Ç¤¤ë¡£
71 v4-mapped-on-v6 ¥¢¥É¥ì¥¹·¿¤Ï C ¥é¥¤¥Ö¥é¥êÆâÉô¤Î¥¢¥É¥ì¥¹¤ò
72 °·¤¦´Ø¿ô¤Ë¤è¤Ã¤ÆÆ©²áŪ¤Ë½èÍý¤µ¤ì¤ë¡£
74 IPv4 ¤È IPv6 ¤Ï¥í¡¼¥«¥ë¥Ý¡¼¥È¶õ´Ö¤ò¶¦Í¤¹¤ë¡£
75 IPv4 ¤ÎÀܳ (¤Þ¤¿¤Ï¥Ñ¥±¥Ã¥È) ¤ò IPv6 ¥½¥±¥Ã¥È¤¬¼èÆÀ¤¹¤ë¤È¡¢
76 ȯ¿®¸µ¥¢¥É¥ì¥¹¤¬ v6 ¤Ë¥Þ¥Ã¥×¤µ¤ì¡¢¤½¤ÎÀܳ (¥Ñ¥±¥Ã¥È) ¤â v6 ¤Ë¥Þ¥Ã¥×¤µ¤ì¤ë¡£
77 .\"nakano: ºÇ¸å¤Î it ¤¬¤Ê¤Ë¤ò»Ø¤¹¤Î¤«¤ï¤«¤é¤ó¡£
78 .SS ¥¢¥É¥ì¥¹¤Î¥Õ¥©¡¼¥Þ¥Ã¥È
82 sa_family_t sin6_family; /* AF_INET6 */
83 in_port_t sin6_port; /* port number */
84 uint32_t sin6_flowinfo; /* IPv6 flow information */
85 struct in6_addr sin6_addr; /* IPv6 address */
86 uint32_t sin6_scope_id; /* Scope ID (new in 2.4) */
90 unsigned char s6_addr[16]; /* IPv6 address */
100 ¤Ï¥×¥í¥È¥³¥ë¥Ý¡¼¥È¤Ç¤¢¤ë
106 ¤Ï IPv6 ¤Î¥Õ¥í¡¼»ØÄê»Ò (flow identifier) ¤Ç¤¢¤ë¡£
108 ¤Ï 128 ¥Ó¥Ã¥È¤Î IPv6 ¥¢¥É¥ì¥¹¤Ç¤¢¤ë¡£
110 ¤Ï¥¢¥É¥ì¥¹¤Î¥¹¥³¡¼¥×¤Ë°Í¸¤·¤¿ ID ¤Ç¤¢¤ë
111 (¤³¤ì¤Ï Linux 2.4 ¤ÇƳÆþ¤µ¤ì¤¿)¡£
112 Linux ¤Î¾ì¹ç¤Ï¡¢¤³¤ì¤Ï¥ê¥ó¥¯¥¹¥³¡¼¥×¥¢¥É¥ì¥¹¤Ç¤·¤«¥µ¥Ý¡¼¥È¤µ¤ì¤Ê¤¤¡£
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119 IPv6 ¤Ï²¿¼ïÎफ¤Î¥¢¥É¥ì¥¹¥¿¥¤¥×¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤ë¡£
120 ñ°ì¤Î¥Û¥¹¥È¤ò¥¢¥É¥ì¥¹¤¹¤ë¤¿¤á¤Î unicast¡¢
121 ¥Û¥¹¥È¤Î¥°¥ë¡¼¥×¤ò¥¢¥É¥ì¥¹¤¹¤ë¤¿¤á¤Î multicast¡¢
122 ¥Û¥¹¥È¤Î¥°¥ë¡¼¥×Ãæ¤ÇºÇ¤â¶á¤¯¤Ë¤¤¤ë¤â¤Î¤ò¥¢¥É¥ì¥¹¤¹¤ë¤¿¤á¤Î anycast
123 (¤³¤ì¤Ï Linux ¤Ç¤Ï¼ÂÁõ¤µ¤ì¤Æ¤¤¤Ê¤¤)¡¢
124 IPv4 ¥Û¥¹¥È¤ò¥¢¥É¥ì¥¹¤¹¤ë¤¿¤á¤Î IPv4-on-IPv6¡£
125 ¾¤Ë¤âͽÌóºÑ¤ß¤Î¥¢¥É¥ì¥¹¥¿¥¤¥×¤¬¤¢¤ë¡£
127 IPv6 ¤Ç¤Î¥¢¥É¥ì¥¹É½µ¤Ï 2 ·å¤Î 16 ¿Ê¿ô 16 ¸Ä¤«¤é¤Ê¤ê¡¢
128 \(aq:\(aq ¤Ï¶èÀÚ¤êʸ»ú¤Ï¤Ç¡¢"::" ¤Ï 0 ¥Ó¥Ã¥È¤Îʸ»úÎó¤òɽ¤¹¡£
129 Æüì¤Ê¥¢¥É¥ì¥¹¤È¤·¤Æ¡¢¥ë¡¼¥×¥Ð¥Ã¥¯¤òɽ¤¹ ::1¡¢
130 IPv4-mapped-on-IPv6 ¤òɽ¤¹ ::FFFF::<IPv4 ¥¢¥É¥ì¥¹> ¤¬¤¢¤ë¡£
132 IPv6 ¤Î¥Ý¡¼¥È¶õ´Ö¤Ï IPv4 ¤È¶¦Í¤µ¤ì¤Æ¤¤¤ë¡£
133 .SS ¥½¥±¥Ã¥È¥ª¥×¥·¥ç¥ó
134 IPv6 ¤Ï¥×¥í¥È¥³¥ë¸ÇͤΥ½¥±¥Ã¥È¥ª¥×¥·¥ç¥ó¤ò¤¤¤¯¤Ä¤«¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤ë¡£
140 IPv6 ¤Î¥½¥±¥Ã¥È¥ª¥×¥·¥ç¥ó¥ì¥Ù¥ë¤Ï
143 ¥Ö¡¼¥ëÀ°¿ô¤Î¥Õ¥é¥°¤Ï¡¢0 ¤¬µ¶¤Ç¤¢¤ê¡¢¤½¤ì°Ê³°¤Ï¿¿¤Ç¤¢¤ë¡£
147 ¥½¥±¥Ã¥È¤òÊ̤Υ¢¥É¥ì¥¹¥Õ¥¡¥ß¥ê¡¼¤Î¥½¥±¥Ã¥È¤ËÊѤ¨¤ë¡£
150 ¤Î¤ß¤¬Êѹ¹Àè¤Î¥¢¥É¥ì¥¹¥Õ¥¡¥ß¥ê¡¼¤È¤·¤Æ¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤ë¡£
151 ¤³¤ì¤¬µö²Ä¤µ¤ì¤ë¤Î¤Ï¡¢IPv6 ¤¬Àܳ¤µ¤ì¡¢
152 v4-mapped-on-v6 ¥¢¥É¥ì¥¹¤Ë¥Ð¥¤¥ó¥É¤µ¤ì¤¿¾ì¹ç¤Ë¸Â¤é¤ì¤ë¡£
155 ¤¬Æþ¤Ã¤Æ¤¤¤ëÀ°¿ô¤Ø¤Î¥Ý¥¤¥ó¥¿¤Ç¤¢¤ë¡£
156 v4-mapped ¥½¥±¥Ã¥È¤ò¡¢IPv6 API ¤ò°·¤¨¤Ê¤¤¥×¥í¥°¥é¥à¤ËÂФ·¤Æ
157 ¥Õ¥¡¥¤¥ë¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¤È¤·¤ÆÅϤ¹¾ì¹ç¤ËÊØÍø¡£
159 .B IPV6_ADD_MEMBERSHIP, IPV6_DROP_MEMBERSHIP
160 multicast ¥°¥ë¡¼¥×¤Î¥á¥ó¥Ð¡¼¤òÀ©¸æ¤¹¤ë¡£
164 .\" FIXME IPV6_CHECKSUM ¤Ïµ½Ò¤µ¤ì¤Æ¤¤¤Ê¤¤¤¬¡¢µ½Ò¤¹¤Ù¤¤À¤í¤¦¡£
165 .\" FIXME IPV6_JOIN_ANYCAST ¤Ïµ½Ò¤µ¤ì¤Æ¤¤¤Ê¤¤¤¬¡¢µ½Ò¤¹¤Ù¤¤À¤í¤¦¡£
166 .\" FIXME IPV6_LEAVE_ANYCAST ¤Ïµ½Ò¤µ¤ì¤Æ¤¤¤Ê¤¤¤¬¡¢µ½Ò¤¹¤Ù¤¤À¤í¤¦¡£
167 .\" FIXME IPV6_RECVPKTINFO ¤Ïµ½Ò¤µ¤ì¤Æ¤¤¤Ê¤¤¤¬¡¢µ½Ò¤¹¤Ù¤¤À¤í¤¦¡£
168 .\" FIXME IPV6_2292PKTINFO ¤Ïµ½Ò¤µ¤ì¤Æ¤¤¤Ê¤¤¤¬¡¢µ½Ò¤¹¤Ù¤¤À¤í¤¦¡£
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174 ¤½¤Î¥Ç¥Ð¥¤¥¹¤Î MTU ¤Þ¤¿¤Ï (Path MTU Discovery
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176 °ú¤¿ô¤ÏÀ°¿ô¤Ø¤Î¥Ý¥¤¥ó¥¿¡£
179 ¤½¤Î¥½¥±¥Ã¥È¤Ç¤Î Path MTU Discovery ¤òÀ©¸æ¤¹¤ë¡£
186 .B IPV6_MULTICAST_HOPS
187 ¤½¤Î¥½¥±¥Ã¥È¤Ç¤Î multicast ¤Î hop ¿ô¤Î¾å¸ÂÃͤòÀßÄꤹ¤ë¡£
188 °ú¤¿ô¤ÏÀ°¿ô¤Ø¤Î¥Ý¥¤¥ó¥¿¤Ç¤¢¤ë¡£
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190 ¤½¤ì°Ê³°¤Î¾ì¹ç¤Ï 0 ¤«¤é 255 ¤ÎÈϰϤò»ØÄꤹ¤ë¡£
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198 ³Æ¥½¥±¥Ã¥È¤Ç¤Î¤ßµö¤µ¤ì¤ë¡£
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201 ¤ò»²¾È) ¤Ø¤Î¥Ý¥¤¥ó¥¿¤Ç¤¢¤ë¡£
203 .B IPV6_MULTICAST_LOOP
204 ¥½¥±¥Ã¥È¤¬¡¢¼«Ê¬¼«¿È¤ÎÁ÷¿®¤·¤¿
205 multicast ¥Ñ¥±¥Ã¥È¤ò´Æ»ë¤¹¤ë¤«¤É¤¦¤«¤òÀ©¸æ¤¹¤ë¡£
206 °ú¤¿ô¤Ï¥Ö¡¼¥ëÃͤؤΥݥ¤¥ó¥¿¡£
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215 ¥½¥±¥Ã¥È¤ËÂФ·¤Æ¤Î¤ßµö²Ä¤µ¤ì¤ë¡£
216 °ú¤¿ô¤Ï¥Ö¡¼¥ëÃͤÎÆþ¤Ã¤¿À°¿ô¡£
219 .B IPV6_RTHDR, IPV6_AUTHHDR, IPV6_DSTOPS, IPV6_HOPOPTS, IPV6_FLOWINFO, IPV6_HOPLIMIT
221 ¼õ¿®¥Ñ¥±¥Ã¥È¤Î¥Ç¡¼¥¿¥°¥é¥à¤Ë³ÈÄ¥¥Ø¥Ã¥À¤¬´Þ¤Þ¤ì¤Æ¤¤¤ë¾ì¹ç¤Î¡¢
222 À©¸æ¥á¥Ã¥»¡¼¥¸¤ÎÇÛÁ÷¤òÀßÄꤹ¤ë¡£
224 routing ¥Ø¥Ã¥À¤òÇÛÁ÷¤¹¤ë¤«¤É¤¦¤«¡£
226 authentication ¥Ø¥Ã¥À¤òÇÛÁ÷¤¹¤ë¤«¤É¤¦¤«¡£
228 destination ¥ª¥×¥·¥ç¥ó¤òÇÛÁ÷¤¹¤ë¤«¤É¤¦¤«¡£
230 hop ¥ª¥×¥·¥ç¥ó¤òÇÛÁ÷¤¹¤ë¤«¤É¤¦¤«¡£
232 flow ID ¤ò´Þ¤àÀ°¿ô¤òÇÛÁ÷¤¹¤ë¤«¤É¤¦¤«¡£
234 ¥Ñ¥±¥Ã¥È¤Î hop ¥«¥¦¥ó¥È¤ò´Þ¤àÀ°¿ô¤òÇÛÁ÷¤¹¤ë¤«¤É¤¦¤«¡£
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253 °ú¤¿ô¤Ï¥Ö¡¼¥ëÃͤؤΥݥ¤¥ó¥¿¡£
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262 °ú¤¿ô¤ÏÀ°¿ô (integer) ¤Ø¤Î¥Ý¥¤¥ó¥¿¡£
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266 router alert ¥ª¥×¥·¥ç¥ó¤ÎÉÕ¤¤¤¿¥Ñ¥±¥Ã¥È¤ÎÇÛÁ÷¤¬¹Ô¤ï¤ì¤Ê¤¤¡£
267 .\" FLOWLABEL_MGR, FLOWINFO_SEND
270 ¤½¤Î¥½¥±¥Ã¥È¤Ç¤Î unicast ¤Î hop ¿ô¤Î¾å¸ÂÃͤòÀßÄꤹ¤ë¡£
271 °ú¤¿ô¤ÏÀ°¿ô¤Ø¤Î¥Ý¥¤¥ó¥¿¤Ç¤¢¤ë¡£
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273 ¤½¤ì°Ê³°¤Î¾ì¹ç¤Ï 0 ¤«¤é 255 ¤ÎÈϰϤò»ØÄꤹ¤ë¡£
275 .BR IPV6_V6ONLY " (Linux 2.4.21 °Ê¹ß¤ª¤è¤Ó 2.6 °Ê¹ß)"
277 ¤³¤Î¥Õ¥é¥°¤ò¿¿ (0 °Ê³°) ¤ËÀßÄꤹ¤ë¤È¡¢¤½¤Î¥½¥±¥Ã¥È¤Ï IPv6 ¥Ñ¥±¥Ã¥È¤À¤±¤ò
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279 ¤³¤Î¾ì¹ç¡¢IPv4 ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤È IPv6 ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤¬Æ±»þ¤Ë
280 °ì¤Ä¤Î¥Ý¡¼¥È¤ò¥Ð¥¤¥ó¥É¤Ç¤¤ë¡£
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285 °ú¤¿ô¤Ï¥Ö¡¼¥ëÃͤÎÆþ¤Ã¤¿À°¿ô¤Ø¤Î¥Ý¥¤¥ó¥¿¤Ç¤¢¤ë¡£
287 ¤³¤Î¥Õ¥é¥°¤Î¥Ç¥Õ¥©¥ë¥ÈÃͤϥե¡¥¤¥ë
288 .I /proc/sys/net/ipv6/bindv6only
289 ¤ÎÆâÍƤˤè¤êÄêµÁ¤µ¤ì¤ë¡£
290 ¤³¤Î¥Õ¥¡¥¤¥ë¤Î¥Ç¥Õ¥©¥ë¥ÈÃÍ¤Ï 0 (µ¶) ¤Ç¤¢¤ë¡£
292 IPv6 API ¤ò libc5 ¥Ù¡¼¥¹¤Ç Linux ¸þ¤±¤Ë¼ÂÁõ¤·¤¿¡¢°ÊÁ°¤Î
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297 Linux 2.4 ¤Ç¤Ï 64 ¥Ó¥Ã¥È¤Î¥Û¥¹¥È¤ËÂФ·¤Æ
299 ¤Î¥Ð¥¤¥Ê¥ê¸ß´¹À¤¬Êݤ¿¤ì¤Æ¤¤¤Ê¤¤¡£
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313 ¥Õ¥£¡¼¥ë¥É¤Ï Linux 2.4 ¤ÇÅо줷¤¿¡£
314 ¤³¤ì¤¬ÅϤµ¤ì¤¿¥¢¥É¥ì¥¹Ä¹¤Ë´Þ¤Þ¤ì¤Æ¤¤¤ë¤È¡¢
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328 .I struct sockaddr_storage
329 ¤òÍѤ¤¤ë¤è¤¦¤ËÊѹ¹¤¹¤ëɬÍפ¬¤¢¤ë¡£
331 IPv6 ³ÈÄ¥ API ¤Ï¡¢¸½ºß¤Þ¤À RFC\ 2292 ¤ò´°Á´¤Ë¤Ï¼ÂÁõ¤·¤Æ¤¤¤Ê¤¤¡£
332 2.2 ¥«¡¼¥Í¥ë¤Ï¼õ¿®¥ª¥×¥·¥ç¥ó¤ò¤Û¤Ü´°Á´¤Ë¥µ¥Ý¡¼¥È¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤ë¤¬¡¢
333 glibc2.1 ¤Ë¤Ï IPv6 ¥ª¥×¥·¥ç¥ó¤òÀ¸À®¤¹¤ë¥Þ¥¯¥í¤¬Â¸ºß¤·¤Æ¤¤¤Ê¤¤¡£
335 EH ¤ª¤è¤Ó AH ¥Ø¥Ã¥À ¤Ç¤Î IPSec ¤Î¥µ¥Ý¡¼¥È¤Ï¸ºß¤·¤Ê¤¤¡£
337 ¥Õ¥í¡¼¥é¥Ù¥ë´ÉÍý¤Ï¤Þ¤À´°Á´¤Ç¤Ê¤¯¡¢¤³¤³¤Ë¤âµ½Ò¤µ¤ì¤Æ¤¤¤Ê¤¤¡£
339 ¤³¤Î man ¥Ú¡¼¥¸¤Ï¤Þ¤À´°À®¤·¤Æ¤¤¤Ê¤¤¡£
344 RFC\ 2553: IPv6 BASIC API.
345 Linux ¤Ï¤³¤Î RFC ¤Ë½àµò¤¹¤ë¤è¤¦¤Ë¤·¤Æ¤¤¤ë¡£
347 RFC\ 2460: IPv6 specification.