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Ç¥ÁعøÈ£ | TTAE.IF-RFC3590 | ±¸Ç¥ÁعøÈ£ | |
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Á¦°³Á¤ÀÏ | 2005-12-21 | ÃÑÆäÀÌÁö | 18 |
ÇѱÛÇ¥Áظí | MLD ÇÁ·ÎÅäÄÝÀ» À§ÇÑ ¼Û½ÅÀÚ ÁÖ¼Ò ¼±Åñâ¹ý | ||
¿µ¹®Ç¥Áظí | Source Address Selection for the Multicast Listener Discovery (MLD) Protocol | ||
Çѱ۳»¿ë¿ä¾à | ±Ùº»ÀûÀÎ Multicast Listener Discovery Protocol (MLD)À» ¸í¼¼ÇÑ RFC 2720¿¡´Â MLD ¸Þ½ÃÁö·Î link-local ÁÖ¼Ò¸¦ »ç¿ëÇϵµ·Ï µÇ¾îÀÖ´Ù. ´õ¿íÀÌ MLD´Â IPv6 ¸ÖƼij½ºÆ® ±×·ì¿¡ Á¶ÀÎÇßÀ» ¶§ MLD ¸®Æ÷Æ® ¸Þ½ÃÁö¸¦ º¸³»µµ·Ï ¿äû ¹Þ°Ô µÈ´Ù. ÀÌ·¯ÇÑ MLD ¿äûÀº Neighbor Discovery ProtocolÀ» ¸í¼¼ÇÑ RFC 2461°ú IPv6 ¸ÖƼij½ºÆ®¸¦ »ç¿ëÇϴµ¥ ÀÖ¾î Ãæµ¹ÀÌ ³´Ù. RFC 2461¿¡ Á¤ÀÇµÈ stateless ÁÖ¼ÒÀÚµ¿¼³Á¤À» À§ÇØ ÇÑ ³ëµå´Â IPv6 ¸ÖƼij½ºÆ® ±×·ì¿¡ Á¶ÀÎÇÒ ¶§ À̸¦ »ç¿ëÇϱâ À§ÇØ ¸ÕÀú DAD °úÁ¤À» ¼öÇàÇØ¾ß µÈ´Ù. ÀÌ ÁÖ¼Ò´Â ´ÜÁö Åë½ÅÀ» À§ÇØ »ç¿ëµÇ´Â ÁÖ¼Ò°¡ ¾Æ´Ï¶ó ³ëµå°¡ ½ÃÇèÀûÀ¸·Î °¡Á®¾ß ÇÏ´Â °ÍÀÌ´Ù. ÀÌ ÁÖ¼Ò´Â ¼Ò½º ÁÖ¼Òó·³ À¯¿ë¼ºÀ» À§ÇØ Àû´çÇÑ ÁÖ¼Ò¸¦ ¼±ÅÃÇÒ ÇÊ¿ä´Â ¾ø´Ù.º» Ç¥ÁØÀº ÀÌ¿Í °°ÀÌ link-local ÁÖ¼Ò¸¦ »ç¿ëÇÒ ¼ö ¾øÀ» ¶§ MLD ¸Þ½ÃÁö¸¦ À§ÇÑ ¼Ò½ºÁÖ¼Ò ¼±Åùæ¹ý¿¡ ´ëÇØ Á¤ÀÇÇÏ°í ÀÖ´Ù | ||
¿µ¹®³»¿ë¿ä¾à | The original specification of the Multicast Listener Discovery Protocol (MLD) for IPv6[RFC 2710] mandates the use of a link-local IPv6 source address for the transmission
of MLD messages. In addition, MLD also requires nodes to send MLD Report messages when joining any IPv6 multicast group (except the All-Nodes address and addresses of scope less than 2). These MLD requirements conflict with the use of IPv6 multicast within the Neighbor Discovery Protocol [RFC 2461]. For stateless autoconfiguration, as defined in [RFC2462], a node is required to join several IPv6 multicast groups in order to perform Duplicate Address Detection prior to its use. Since the only address the node has is tentative, and cannot be used for communication, it does not have a suitable address to utilize as a source address. This document will clarify the IPv6 source address selection rules for use with MLD when no link-local addresses are available. |
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±¹Á¦Ç¥ÁØ | IETF RFC 3590 | ||
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