IGMP縺昴���
| 繝槭Ν繝√く繝｣繧ｹ繝医ｒ縺ｩ縺薙↓霆｢騾√☆繧後�縺�＞�� 繝ｫ繝ｼ繧ｿ縺後�繝ｫ繝√く繝｣繧ｹ繝医�繝代こ繝�ヨ繧定ｻ｢騾√☆繧九◆繧√↓縺ｯ縲√←縺ｮ繧､繝ｳ繧ｿ繝輔ぉ繝ｼ繧ｹ縺ｮ蜈医↓縺ｩ縺ｮ繧ｰ繝ｫ繝ｼ繝励�繝｡繝ｳ繝舌�(Receiver)縺後＞繧九�縺九ｒ遏･縺｣縺ｦ縺翫°縺ｪ縺代ｌ縺ｰ縺�￠縺ｾ縺帙ｓ縲ゅせ繧､繝�メ縺ｮ繧医≧縺ｫ繝槭Ν繝√く繝｣繧ｹ繝医ｒ縺吶∋縺ｦ繝輔Λ繝�ョ繧｣繝ｳ繧ｰ縺励※縺励∪縺｣縺ｦ縺ｯ縲√ロ繝�ヨ繝ｯ繝ｼ繧ｯ縺ｫ菴呵ｨ医↑繝医Λ繝輔ぅ繝�け繧呈ｵ√＠縺ｦ縺励∪縺�％縺ｨ縺ｫ縺ｪ縺｣縺ｦ縺励∪縺�∪縺吶�  |
| 繝ｫ繝ｼ繧ｿ縺ｨ繝帙せ繝医�髢薙〒繝槭Ν繝√く繝｣繧ｹ繝医げ繝ｫ繝ｼ繝励�邂｡逅� 繝ｫ繝ｼ繧ｿ縺後�繝ｫ繝√く繝｣繧ｹ繝医げ繝ｫ繝ｼ繝励ｒ邂｡逅�☆繧九◆繧√�繝励Ο繝医さ繝ｫ縺後！GMP(Internet Group Management Protocol)縺ｧ縺吶� 繝帙せ繝医�IGMP繧剃ｽｿ縺｣縺ｦ縲√Ν繝ｼ繧ｿ縺ｫ蜿嶺ｿ｡縺励◆縺��繝ｫ繝√く繝｣繧ｹ繝医げ繝ｫ繝ｼ繝励ｒ騾夂衍縺励∪縺吶ゅΝ繝ｼ繧ｿ縺ｯ縲！GMP縺ｫ繧医▲縺ｦ蠕励◆諠��ｱ縺ｫ繧医ｊ縲√�繝ｫ繝√く繝｣繧ｹ繝医げ繝ｫ繝ｼ繝励′蟄伜惠縺吶ｋ繧､繝ｳ繧ｿ繝輔ぉ繝ｼ繧ｹ縺ｫ縺�縺題ｩｲ蠖薙�繝代こ繝�ヨ繧定ｻ｢騾√☆繧九ｈ縺�↓縺ｪ繧翫∪縺吶� IGMP縺ｫ縺ｯ縲∫樟蝨ｨ縲」1縲」2縲」3縺ｨ3縺､縺ｮ繝舌�繧ｸ繝ｧ繝ｳ縺後≠繧翫∪縺吶′縲√∪縺壹�譛繧ょ渕譛ｬ逧�↑IGMPv1縺ｫ縺､縺�※隗｣隱ｬ縺励∪縺吶� IGMPv1縺ｯRFC1112縺ｫ螳夂ｾｩ縺輔ｌ縺ｦ縺�∪縺吶�IGMP縺ｮ繝｡繝�そ繝ｼ繧ｸ縺ｯ谺｡縺ｮ2縺､縺ｮ遞ｮ鬘槭′縺ゅｊ縺ｾ縺吶� 繝ｻ繝｡繝ｳ繝舌�繧ｷ繝��繧ｯ繧ｨ繝ｪ繝ｼ 繝ｫ繝ｼ繧ｿ縺後√後�繝ｫ繝√く繝｣繧ｹ繝医�繝｡繝ｳ繝舌�縺ｮ莠ｺ縺�∪縺吶°�橸ｼ溘阪→蝠上＞蜷医ｏ縺帙ｋ繝｡繝�そ繝ｼ繧ｸ縺ｧ縺吶ゅΝ繝ｼ繧ｿ縺ｯ螳壽悄逧�(繝�ヵ繧ｩ繝ｫ繝医〒縺ｯ60遘偵＃縺ｨ)縺ｫ縺薙�繝｡繝ｳ繝舌�繧ｷ繝��繧ｯ繧ｨ繝ｪ繝ｼ繧帝∽ｿ｡縺励※縲√�繝ｫ繝√く繝｣繧ｹ繝医げ繝ｫ繝ｼ繝励�繝｡繝ｳ繝舌�縺ｮ蟄伜惠繧堤｢ｺ隱阪＠縺ｦ縺�∪縺吶� 繝ｻ繝｡繝ｳ繝舌�繧ｷ繝��繝ｬ繝昴�繝� 繝ｫ繝ｼ繧ｿ縺九ｉ縺ｮ繝｡繝ｳ繝舌�繧ｷ繝��繧ｯ繧ｨ繝ｪ繝ｼ縺ｫ蟇ｾ縺吶ｋ霑比ｺ九→縺励※縲√Γ繝ｳ繝舌�繧ｷ繝��繝ｬ繝昴�繝医ｒ騾∽ｿ｡縺励∪縺吶ゅけ繧ｨ繝ｪ繝ｼ縺ｫ蟇ｾ縺吶ｋ霑比ｺ九→縺励※縺�縺代〒縺ｯ縺ｪ縺上�縺ゅｋ繝帙せ繝医′縲後�繝ｫ繝√く繝｣繧ｹ繝医げ繝ｫ繝ｼ繝励↓蜈･繧翫◆縺�ｼ√阪→縺�≧縺ｨ縺阪�諢乗晁｡ｨ譏�縺ｨ縺励※繧ゆｽｿ縺�∪縺吶ゅげ繝ｫ繝ｼ繝励↓蜈･繧九→縺阪ｒ縺ｨ縺上↓Join繝｡繝�そ繝ｼ繧ｸ縺ｨ蜻ｼ縺ｳ縺ｾ縺吶� |
| IGMPv1縺ｮ繝代こ繝�ヨ繝輔か繝ｼ繝槭ャ繝� IGMPv1縺ｮ繝代こ繝�ヨ繝輔か繝ｼ繝槭ャ繝医�谺｡縺ｮ繧医≧縺ｫ縺ｪ繧翫∪縺吶ゅ％繧後�縲！P繝代こ繝�ヨ縺ｧ驕九�繧後ｋ縺薙→縺ｫ縺ｪ繧翫∪縺吶�  繝ｻ繝舌�繧ｸ繝ｧ繝ｳ IGMP縺ｮ繝舌�繧ｸ繝ｧ繝ｳ繧定｡ｨ縺励※縺�∪縺吶� 繝ｻ繧ｿ繧､繝� IGMP縺ｮ繝｡繝�そ繝ｼ繧ｸ縺ｮ繧ｿ繧､繝励ｒ陦ｨ縺励∪縺吶� 0x01 繝帙せ繝医Γ繝ｳ繝舌�繧ｷ繝��繧ｯ繧ｨ繝ｪ繝ｼ 0x02 繝帙せ繝医Γ繝ｳ繝舌�繧ｷ繝��繝ｬ繝昴�繝� 繝ｻ譛ｪ菴ｿ逕ｨ v1縺ｧ縺ｯ縺薙％縺ｮ驛ｨ蛻��辟｡隕悶＠縺ｾ縺吶� 繝ｻ繝√ぉ繝�け繧ｵ繝� IGMP繝｡繝�そ繝ｼ繧ｸ縺ｮ繧ｨ繝ｩ繝ｼ繝√ぉ繝�け繧定｡後＞縺ｾ縺吶� 繝ｻ繧ｰ繝ｫ繝ｼ繝励い繝峨Ξ繧ｹ 繝帙せ繝医′謇螻槭☆繧九�繝ｫ繝√く繝｣繧ｹ繝医げ繝ｫ繝ｼ繝励い繝峨Ξ繧ｹ縺悟�繧翫∪縺吶� 莉･荳翫�IGMPv1縺ｮ繝｡繝�そ繝ｼ繧ｸ繧貞茜逕ｨ縺励※縲√Ν繝ｼ繧ｿ縺ｨ繝槭Ν繝√く繝｣繧ｹ繝医�繧ｹ繝磯俣縺ｧ縲� 繝ｻ繝槭Ν繝√く繝｣繧ｹ繝医げ繝ｫ繝ｼ繝励∈縺ｮ蜿ょ刈 繝ｻ繝槭Ν繝√く繝｣繧ｹ繝医げ繝ｫ繝ｼ繝励�邯ｭ謖� 繝ｻ繝槭Μ蝨ｰ繧ｭ繝｣繧ｹ繝医げ繝ｫ繝ｼ繝励°繧峨�閼ｱ騾 繧貞宛蠕｡縺励∪縺吶� 谺｡蝗槭√％繧後ｉ縺ｫ縺､縺�※隗｣隱ｬ縺励※縺�￥縺薙→縺ｫ縺励∪縺吶� |
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