Cisco路由器配置与管理完全手册 - 万水书苑-出版资源网

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩

8.1 RIP 䏃⬅ण䆂෎⸔

RIP˄Routing Information Protocolˈ䏃⬅ֵᙃण䆂˅ᰃᑨ⫼䕗ᮽǃՓ⫼䕗᱂䘡ⱘݙ䚼㔥݇ण䆂

˄Interior Gateway ProtocolˈIGP˅ˈ䗖⫼Ѣᇣൟৠ㉏㔥㒰ⱘϔϾ㞾⊏㋏㒳˄AS˅ݙⱘ䏃⬅ֵᙃⱘӴ 䗦ǄRIP ण䆂䞛⫼Ā䎱⾏ⶶ䞣ā˄гህ㋻Ā䎱⾏ā԰Ў䏃⬅ব䞣˅䏃⬅ㅫ⊩ˈՓ⫼Ā䏇᭄āˈे Hop ᴹ㸵䞣ࠄ䖒Ⳃᷛഄഔⱘ䏃⬅䎱⾏ˈϨ᳔໻᳝ᬜ䏇᭄ؐҙЎ 15Ǆ

RIP ण䆂⦄೼᳝ϸϾ⠜ᴀˈे RIPv1 ੠ RIPv2ˈᮄ⠜ᴀ RIPv2 ᬃᣕ㒃᭛ᴀ੠ MD5 䑿ӑ䅸䆕ǃ

䏃 ⬅ ∛ ᘏ ǃ ᮴ ㉏ ߿ ඳ 䯈䏃 ⬅ ˄ Classless Interdomain Routing ˈ CIDR ˅ ੠ ৃ ব 䭓 ᑺ ᄤ 㔥 ᥽ ⷕ ˄Variable-Length Subnet MasksˈVLSM˅Ǆ

8.1.1 ࡼᗕ䏃⬅ߚ㉏

ࡼᗕ䏃⬅Ϣ䴭ᗕ䏃⬅᳔໻ⱘϡৠህᰃˈࡼᗕ䏃⬅᮴䳔᠟ࡼϔ䏇䏇ഄ䜡㕂䏃⬅ˈϨৃ೼㔥㒰䗮ֵ ⌕䞣៪㗙㔥㒰ᢧᠥ㒧ᵘথ⫳ব࣪ᯊ㛑㞾ࡼ䇗ᭈ䏃⬅䏃ᕘˈᅲ⦄ᣕ㓁䏃⬅᳡ࡵˈ᮴䳔ㅵ⧚ਬ᠟ࡼ䇗 ᭈǄ㗠Ϩࡼᗕ䏃⬅ֵᙃⱘᬍবӮ䗮䖛䏃⬅᳈ᮄ᡹᭛৥ᅗӀⱘ䚏ሙ䏃⬅఼ձ⃵䗮ਞˈ᳔㒜ᅲ⦄ᭈϾ㔥㒰Ё৘䏃⬅఼Ϟ㓈ᣕ〇ᅮⱘܼ㔥䏃⬅㸼乍Ǆ᳝݇ࡼᗕ䏃⬅ⱘ෎ᴀ⡍⚍೼㄀ 7.1.2 㡖Ꮖ᳝䆺㒚ҟ㒡ˈ ೼ℸϡݡ䌬䗄Ǆ 䖭гᰃЎҔМࡼᗕ䏃⬅䜡㕂˄᮴䆎ᰃᴀゴҟ㒡ⱘ RIP ࡼᗕ䏃⬅ˈ䖬ᰃৢ䴶৘ゴᇚ㽕ҟ㒡ⱘ OSPFǃEIGRPǃBGPǃIS-IS ㄝࡼᗕ䏃⬅˅᳔෎ᴀⱘ䜡㕂ህᰃ߯ᓎϔϾᇍᑨࡼᗕ䏃⬅ण䆂ⱘ䖯⿟ˈ ✊ৢᡞ৘䏃⬅఼᠔䖲᥹ⱘ㔥㒰䗮䖛 network ੑҸ䖯㸠ᅷਞˈ✊ৢݡ⬅䚏ሙ䏃⬅఼৥ᅗⱘ݊Ҫ䚏ሙ䏃 ⬅䖯㸠ᅷਞˈϔ㑻㑻ഄӴ䗦ϟএǄᇍѢৃҹߦߚऎඳ˄Area˅ⱘࡼᗕ䏃⬅ण䆂˄བ OSPFǃ EIGRPǃIS-IS ㄝ˅䖬䳔㽕߯ᓎ᠔䳔ⱘऎඳǄ෎ᴀⱘ䜡㕂ህ䖭Мㅔऩˈḍᴀ᮴䳔Ўࠄ䖒↣Ͼ໪䚼㔥㒰៪㗙໪䚼㔥㒰ЁⱘЏᴎ䜡㕂ϧ䮼ⱘ䏃⬅Ǆ Ԛ㽕⊼ᛣⱘᰃˈࡼᗕ䏃⬅ण䆂ϡᰃҙᴀゴᇚ㽕ҟ㒡ⱘ RIP ϔ⾡ˈᴀкৢ䴶ҟ㒡ⱘ OSPFǃ EIGRPǃIS-IS ੠ BGP ㄝ䛑ᰃࡼᗕ䏃⬅ण䆂Ǆᘏԧᴹ䇈ˈབᵰҢᑨ⫼⦃๗ᴹߚⱘ䆱ˈ䖭ѯࡼᗕ䏃⬅

ण䆂ৃߚЎĀݙ䚼㔥݇ण䆂ā˄Interior Gateway ProtocolˈIGP˅੠Ā໪䚼㔥݇ण䆂ā˄Exterior

Gateway ProtocolˈEGP˅ϸ໻㉏ˈབ೒ 8-1 ᠔⼎Ǆ

䎱⾏ⶶ䞣䏃⬅ण䆂üüRIPǃIGRP IGP 䫒䏃⢊ᗕ䏃⬅ण䆂üüOSPFǃIS-IS ⏋ড়ൟ䏃⬅णüüEIGRP EGPüüEGP3ǃBGP ೒ 8-1 ࡼᗕ䏃⬅ण䆂ߚ㉏ IGP ᰃᣛ⫼Ѣ೼ϔϾ㞾⊏㋏㒳˄AS˅ݙ䚼᠔Փ⫼ⱘϔ⾡䏃⬅ण䆂ˈ⫼ѢϔϾ AS ݙ䚼㔥݇䯈 ˄гህᰃЏᴎϢ䏃⬅఼П䯈˅Ѹᤶ䏃⬅ֵᙃǄ㗠ϔϾ AS ᰃᣛϔ㒘Џᴎ੠Փ⫼Ⳍৠ䏃⬅䗝ᢽण䆂ⱘ 䏃⬅఼䲚ড়ˈᑊ⬅ऩϔᴎᵘㅵ⧚ˈ䗮ᐌᰃҹϔϾ㒘㒛ⱘ㔥㒰Ў䖍⬠ǄEGP ᰃЎϸϾⳌ䚏ⱘԡѢ৘㞾 AS 䖍⬠Ϟⱘ䏃⬅఼ᦤկϔ⾡䏃⬅ֵᙃѸᤶⱘ䏃⬅ण䆂ˈ৘ AS ݙ䚼ⱘ䏃⬅ֵᙃѸᤶҡ⬅ IGP ㉏ൟ ⱘ䏃⬅ण䆂ᴹ㾷އǄ ೼ᭈϾࡼᗕ䏃⬅ण䆂Ёˈᑨ⫼Ѣ AS ݙ䚼ⱘ IGP ㉏ൟ䏃⬅ण䆂᳈໮ǄབᵰҢ᠔䞛⫼ⱘ䏃⬅ㅫ⊩ ㉏ൟᴹߚⱘ䆱ˈ䖭ѯ IGP ࡼᗕ䏃⬅ण䆂জৃߚЎĀ䎱⾏༅䞣䏃⬅ㅫ⊩ā˄Distance VectorˈDV˅ǃ

ࡼᗕ䏃 ⬅ण䆂

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ Ā䫒䏃⢊ᗕ䏃⬅ㅫ⊩ā˄Link StateˈLS˅ˈҹঞৠᯊ䞛⫼ DV ੠ LS ϸ⾡ㅫ⊩ⱘ⏋ড়ൟ䏃⬅ण䆂Ǆ DV ㉏ൟⱘण䆂Џ㽕ࣙᣀ RIP˄䏃⬅ֵᙃण䆂˅ǃIGRP˄ݙ䚼㔥݇䏃⬅ण䆂ˈᰃᗱ⾥⾕᳝ण䆂˅䖭 ϸ⾡ˈ㗠 LS ㉏ൟⱘࡼᗕ䏃⬅ण䆂জЏ㽕ࣙᣀ OSPF˄ᓔᬒ᳔ⷁ䏃ᕘӬܜ˅ǃIS-IS˄Ё䯈㋏㒳ࠄЁ䯈㋏㒳˅䖭ϸ⾡˗⏋ড়ൟⱘࡼᗕ䏃⬅ण䆂ⳂࠡЏ㽕ᰃᗱ⾥⾕᳝ⱘ EIGRP˄๲ᔎൟݙ䚼㔥݇䏃⬅ण䆂ˈ гᰃᗱ⾥⾕᳝ण䆂˅ण䆂Ǆ 㟇Ѣ EGP ㉏ൟⱘण䆂ˈⳂࠡЏ㽕ᰃ BGP˄䖍⬠㔥݇ण䆂˅ˈҹࠡ䖬᳝ϔ⾡ EGP3˄໪䚼㔥݇ण 䆂⠜ᴀ 3˅ण䆂ˈԚϡ㛑ᡞ EGP3 Ϣ៥Ӏ䖭䞠᠔ߚ㉏ⱘ EGP ㄝৠ䍋ᴹˈEGP3 ᰃϔ⾡⣀ゟⱘ໪䚼㔥 ݇ण䆂ǄབᵰҢ䏃⬅ㅫ⊩Ϟᴹߚ㉏ⱘ䆱ˈBGP гৃҹ䇈ᰃϔ⾡⏋ড়ൟ䏃⬅ण䆂ˈ಴Ўᅗ᮶᳝䎱⾏ ⶶ䞣䏃⬅ण䆂ⱘ⡍⚍ˈজ݋᳝䫒䏃⢊ᗕ䏃⬅ण䆂ⱘ⡍⚍ˈ݋ԧᇚ೼㄀ 12 ゴҟ㒡Ǆ

8.1.2 RIP 䏃⬅ⱘᑺ䞣ᴎࠊ

↣ϔ⾡䏃⬅ण䆂ˈ䛑ᰃᛇ䗮䖛ᶤϔϾখ㗗ব䞣ᴹᅲ⦄᳔Շ䏃⬅ⱘ䅵ㅫˈгህᰃ↣ϔ⾡䏃⬅ण䆂䛑᳝ᅗ㞾Ꮕⱘ䏃⬅ᑺ䞣ᴎࠊǄϡৠⱘ䏃⬅ण䆂᠔䞛পⱘ䏃⬅ᑺ䞣ᴎࠊᰃϡϔḋⱘˈ䖭পއѢ৘㞾᠔ 䞛⫼ⱘ䏃⬅ㅫ⊩ǄRIP 䞛⫼ⱘᰃĀ䏇᭄ā˄Hop Count˅԰Ў䏃⬅ⱘᑺ䞣ǄRIP ᰃϔ⾡ㅔऩⱘࡼᗕ䏃 ⬅ण䆂ˈᅗⱘ䆒䅵ᗱᛇህᰃᣝ✻ϡৠ䏃⬅䏃ᕘⱘĀ䎱⾏ā䭓ⷁᴹއᅮϡৠ䏃⬅ⱘӬܜ㑻ⱘǄ㗠䖭 Ā䎱⾏āህᰃ RIP 䏃⬅ण䆂Ё᠔䇈ⱘ hop˄䏇᭄˅ˈгे᠔㒣䖛ⱘ䏃⬅఼៪݊Ҫϝሖ䆒໛ⱘϾ᭄ ˄ᴀഄ䏃⬅఼ϡㅫ˅ǄĀ䎱⾏ā䍞ⷁⱘ RIP 䏃⬅Ӭܜ㑻䍞催ˈ᳔䭓Ў 15Ǆ 1ˊ⧚㾷Ā䏇᭄ā RIP ण䆂䞛⫼ⱘᰃĀ䎱⾏ⶶ䞣ā䏃⬅ㅫ⊩ˈᰃҙҹĀ䎱⾏ā԰Ўᑺ䞣ᷛޚˈгህᰃ䏃⬅ⱘĀ䎱⾏āᰃ RIP 䏃⬅ⱘᑺ䞣ǄԚ㽕⊼ᛣⱘᰃˈ䖭䞠Ā䎱⾏āϡᰃᣛᅲ䰙ⱘ䗮ֵ㒓䏃䭓ᑺˈгϡᰃϸϾ㔥㒰៪㗙ϸৄЏᴎⳌ䎱ⱘ⠽⧚䎱⾏ˈ㗠ᰃᣛ䰸⑤㔥㒰᠔䖲᥹ⱘ䏃⬅఼໪ˈࠄ䖒Ⳃⱘ㔥㒰ⱘᭈᴵ䏃⬅䏃 ᕘЁ᠔㒣䖛ⱘ䏃⬅఼᭄ˈህᰃࠡ䴶᠔䇈ⱘĀ䏇᭄āǄ ؛䆒೼೒ 8-2 ⱘ㔥㒰ЁˈಯϾ䏃⬅఼䛑䖤㸠њ RIP ण䆂Ǆ⦄೼㽕䜡㕂Ң PC1 ᠔೼㔥㒰ࠄ䖒 PC2 ᠔೼㔥㒰ⱘ RIP 䏃⬅ˈ߭䏇᭄ህᰃ 3˄PC1 Ⳉ᥹䖲᥹੠ R1 ϡㅫ೼ݙˈ݊Ҫ↣Ͼ䏃⬅఼ㅫϔ䏇˅ǄԚ ᰃ៥Ӏⳟϔϟˈ䖭ಯϾ䏃⬅఼᠔䖲᥹ⱘ㔥㒰᭄䖒ࠄњ 5 Ͼ˄Ң 1.1.1.0/24 ࠄ 5.1.1.0/24˅ˈᔧ✊䖭䖬 াᰃ᳔ㅔऩⱘ㔥㒰њˈ಴Ў↣Ͼ䏃⬅఼䖬ৃҹ䖲᥹໮Ͼ㔥㒰Ǆ঺໪㽕⊼ᛣⱘᰃˈ೼ৠϔϾ䏃⬅఼Ϟ Ⳉ᥹䖲᥹ⱘ໮Ͼ㔥㒰ˈᕐℸ䯈ⱘᑺ䞣ؐЎ 0ˈ಴ЎᅗӀᰃⳈ䖲䏃⬅Ǆ ೒ 8-2 RIP 䏃⬅䏇᭄䅵ㅫ⼎՟ 2ˊᑺ䞣᳈ᮄ㾘߭ RIP 䏃⬅఼䞛⫼ᅠᭈ䏃⬅㸼᳈ᮄᮍᓣˈгህᰃ↣Ͼ RIP 䏃⬅఼Ӯᡞ㞾Ꮕⱘ䏃⬅㸼থ㒭Ⳍ䚏ⱘ RIP䏃⬅఼ˈҹℸᴹ䖯㸠ᕐℸⱘ䏃⬅㸼᳈ᮄǄᘏԧᴹ䇈ˈᅗ䙉ᕾҹϟ޴Ͼ෎ᴀॳ߭˖ 䏃⬅㸼乍↣㒣䖛ϔ⃵䚏ሙ䏃⬅఼П䯈ⱘӴ䗦ˈ݊ᑺ䞣ؐࡴ 1˄᳔໻ؐЎ 15ˈϟৠ˅Ǆ ೼བ೒ 8-1 ᠔⼎ⱘ㔥㒰ЁˈR1 䏃⬅఼ᡞᅗ᠔䖲᥹ⱘ 1.1.1.0/24 㔥㒰৥ R2 䗮ਞˈ䖭ᯊ೼ R2 Ϟࠄ 䖒 1.1.1.0/24 㔥㒰ⱘᑺ䞣Ў 1ˈᔧ R2 ݡᡞᅗ㦋পⱘࠄ䖒 1.1.1.0/24 㔥㒰ⱘ䏃⬅থ㒭 R3 ᯊˈR3 Ϟࠄ 䖒 1.1.1.0/24 㔥㒰ⱘᑺ䞣ህবЎ 2ˈ㗠ᔧ R3 ᡞ㦋পⱘࠄ䖒 1.1.1.0/24 㔥㒰ⱘ䏃⬅থ㒭 R4 ᯊˈR4 Ϟ

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ ࠄ䖒 1.1.1.0/24 㔥㒰ⱘᑺ䞣ህবЎ 3Ǆ 䏃⬅఼೼ᬊࠄᮄⱘ䏃⬅᳈ᮄ㸼乍ᯊˈӮ೼݊䏃⬅㸼Ё⏏ࡴᮄⱘ䏃⬅㸼乍ˈ݊ᑺ䞣ᰃ೼᥹ᬊ ⱘ䏃⬅㸼乍ᑺ䞣෎⸔Ϟࡴ 1ˈৠᯊ೼ᮄ⏏ࡴⱘ䏃⬅㸼乍Ёᷛ⊼݊ϟϔ䏇ഄഔህᰃথ䗕䏃⬅ ᳈ᮄⱘ䚏ሙ䏃⬅఼ⱘ᥹ষǄ བ೒ 8-2 ᠔⼎ⱘ⼎՟Ёˈ؛䆒 R4 ೼ᬊࠄᴹ㞾 R3 ⱘ䏃⬅㸼᳈ᮄᯊথ⦄ࣙ৿њϔᴵࠄ䖒 6.1.1.0/24㔥㒰ⱘᮄ䏃⬅㸼乍ˈᑊϨ݊ᑺ䞣Ў 2ˈ䖭ᯊ R3 ህӮ೼㞾Ꮕⱘ䏃⬅㸼Ё⏏ࡴ䖭ᴵᮄⱘ䏃⬅ 㸼乍ˈᑊϨ䆒㕂ᑺ䞣Ў 3˄=2+1˅ˈĀϟϔ䏇ഄഔāЎ R3 Ϣ R4 Ⳍ䖲ⱘ䙷Ͼ᥹ষ IP ഄഔǄ ᬊࠄॳ᳝䏃⬅㸼乍ⱘ䏃⬅᳈ᮄᯊˈܜᇍ᳝᳈ᮄⱘ䏃⬅㸼乍ⱘᑺ䞣ࡴ 1ˈ✊ৢϢᇍᑨⱘ䏃⬅ 㸼乍Ёॳᑺ䞣䖯㸠↨䕗ˈҙ᥹ᬊᑺ䞣ؐ᳈ᇣ៪Ⳍㄝⱘ᳈ᮄˈᗑ⬹ᑺ䞣ؐ↨ॳᴹⱘؐ᳈໻ⱘ 䏃⬅᳈ᮄǄ ؛䆒೼೒ 8-2 ЁˈR2 Ёॳ᳝ⱘ䏃⬅㸼乍བ೒ 8-3 ᠔⼎ˈ⦄জᬊࠄᴹ㞾 R3 ⱘབ೒ 8-4 ᠔⼎ⱘ䏃 ⬅᳈ᮄ˄ਃ⫼њ∈ᑇߚࡆࡳ㛑ৢህϡӮߎ⦄䖭ḋⱘ᳈ᮄњˈᴀゴৢ䴶ᇚ݋ԧҟ㒡˅Ǆ Ⳃⱘ㔥㒰 ϟϔ䏇䎱⾏ Ⳃⱘ㔥㒰 ϟϔ䏇䎱⾏ 2.1.1.0 ü 0 2.1.1.0 3.1.1.1 1 3.1.1.0 ü 0 3.1.1.0 ü 0 4.1.1.0 3.1.1.2 1 4.1.1.0 ü 0 5.1.1.0 3.1.1.2 2 5.1.1.0 4.1.1.2 1 ೒ 8-3 R2 䏃⬅఼Ϟॳᴹⱘ䏃⬅㸼 ೒ 8-4 R2 ᬊࠄᴹ㞾 R3 ⱘ䏃⬅᳈ᮄ ᇍѢ R2 ᴹ䇈ˈᅗ೼ᬊࠄᴹ㞾 R3 ⱘ䏃⬅᳈ᮄৢˈ佪ܜᇍ೒ 8-4 ᠔⼎ⱘ৘䏃⬅㸼乍ⱘᑺ䞣ࡴ 1ˈ 㒧ᵰᕫࠄⱘ䏃⬅㸼乍བ೒ 8-5 ᠔⼎Ǆᇍ↨೒ 8-5 ੠೒ 8-3 ৃҹⳟߎˈࠄ䖒 2.1.1.0 㔥㒰੠ 3.1.1.0 㔥㒰 ⱘᑺ䞣ؐ↨ॳᴹⱘ䖬໻ˈ᠔ҹᗑ⬹᳈ᮄˈ㗠ࠄ䖒 4.1.1.0 㔥㒰੠ 5.1.1.0 㔥㒰ⱘᑺ䞣ؐᰃⳌㄝⱘˈ䖯㸠䏃⬅㸼乍᳈ᮄˈ᠔ҹ᳔㒜 R2 Ϟⱘ䏃⬅㸼䖬ᰃབ೒ 8-3 ᠔⼎Ǆ Ⳃⱘ㔥㒰 ϟϔ䏇䎱⾏ 2.1.1.0 3.1.1.2 2 3.1.1.0 3.1.1.2 1 4.1.1.0 3.1.1.2 1 5.1.1.0 3.1.1.2 2 ೒ 8-5 R2 ᇍᬊࠄⱘ䏃⬅᳈ᮄ㸼乍ᑺ䞣ؐࡴ 1 ৢⱘ䏃⬅㸼 བᵰϔϾ᥹ষ䖲᥹㔥㒰ⱘ㔥㒰≵᳝ᣛᅮ˄гህᰃ≵᳝ᅷਞ᠔Ⳉ᥹䖲᥹ⱘ㔥㒰˅ˈ߭ᅗϡӮ೼ӏ ԩ RIP ᳈ᮄЁ㹿䗮ਞǄབ೒ 8-2 Ё೼ R1 ⱘ䜡㕂Ё≵᳝ᅷਞᅗ᠔䖲᥹ⱘ 1.1.1.0/24 㔥㒰ˈ߭݊Ҫ䏃⬅ ఼Ϟгህ≵᳝ࠄ䖒䖭Ͼ㔥㒰ⱘ RIP 䏃⬅㸼乍ˈབᵰ䖭ѯ䏃⬅఼ҙਃ⫼њ RIP ण䆂ˈϨϡ䜡㕂䴭ᗕ䏃 ⬅ˈ߭݊Ҫ䏃⬅఼гህϡ㛑ࠄ䖒 1.1.1.0/24 䖭Ͼ㔥㒰њǄ ᔧ✊ˈࠄ䖒ৠϔⳂⱘ㔥㒰ˈг᳝ৃ㛑䎱⾏ᰃϔḋⱘˈ䖭ᯊህৃ㛑ᄬ೼ৠϔⳂⱘ㔥㒰ⱘϸᴵ RIP 䏃⬅㸼乍Ǆህڣ໮ᴵ咬䅸䏃⬅ϔḋˈ䖭ḋϸᴵⳌৠⳂⱘ㔥㒰ⱘ RIP 䏃⬅гৃҹᅲ⦄䋳䕑ഛ㸵Ǆ

8.1.3 RIP 䏃⬅᳈ᮄᴎࠊ

RIP ण䆂᳝ϸ⾡᳈ᮄᴎࠊ˖ϔᰃᅮᳳ᳈ᮄˈѠᰃ㾺থ᳈ᮄǄĀᅮᳳ᳈ᮄāᰃḍ᥂䆒㕂ⱘ᳈ᮄ䅵

(5)

๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ ᯊ఼ᅮᳳথ䗕 RIP 䏃⬅䗮ਞǄ䆹䗮ਞ᡹᭛Ёᨎᏺњ䰸Ā∈ᑇߚࡆāᴎࠊᡥࠊⱘ RIP 䏃⬅П໪ᴀഄ䏃 ⬅఼Ёⱘ᠔᳝ RIP 䏃⬅ֵᙃǄ㗠Ā㾺থ᳈ᮄā߭ᰃ RIP 䏃⬅఼ҙ೼᳝䏃⬅㸼乍থ⫳ব࣪ᯊথ䗕ⱘ RIP 䏃⬅䗮ਞˈҙᨎᏺᴀഄ䏃⬅㸼Ё᳝ব࣪ⱘ䏃⬅ֵᙃǄRIP 䏃⬅఼ϔᮺᆳ㾝ࠄ㔥㒰ব࣪ˈህሑᖿ ⫮㟇ᰃゟेথ䗕᳈ᮄ᡹᭛ˈ㗠ϡㄝᕙ᳈ᮄ਼ᳳ㒧ᴳǄা㽕㾺থ᳈ᮄⱘ䗳ᑺ䎇໳ᖿˈህৃҹ໻໻ഄ䰆 ℶĀ䅵᭄ࠄ᮴か໻āⱘথ⫳ˈԚᰃ䖭ϔ⦄䈵䖬ᰃ᳝ৃ㛑থ⫳ⱘǄ ᮴䆎ᰃᅮᳳ᳈ᮄˈ䖬ᰃ㾺থ᳈ᮄˈRIP 䏃⬅ⱘ᳈ᮄ㾘߭བϟ˖ བᵰ᳈ᮄⱘᶤ䏃⬅㸼乍೼䏃⬅㸼Ё≵᳝ˈ߭Ⳉ᥹೼䏃⬅㸼Ё⏏ࡴ䆹䏃⬅㸼乍˗ བᵰ䏃⬅㸼ЁᏆ᳝ⳌৠⳂⱘ㔥㒰ⱘ䏃⬅㸼乍ˈϨᴹ⑤ッষⳌৠˈ䙷М᮴ᴵӊḍ᥂᳔ᮄⱘ䏃 ⬅ֵᙃ᳈ᮄ݊䏃⬅㸼˗ བᵰ䏃⬅㸼ЁᏆ᳝ⳌৠⳂⱘ㔥㒰ⱘ䏃⬅㸼乍ˈԚᴹ⑤ッষϡৠˈ߭㽕↨䕗ᅗӀⱘᑺ䞣ؐˈ ᇚᑺ䞣ؐ䕗ᇣⱘϔϾ԰Ў㞾Ꮕⱘ䏃⬅㸼乍˗ བᵰ䏃⬅㸼ЁᏆ᳝ⳌৠⳂⱘ㔥㒰ⱘ䏃⬅㸼乍ˈϨᑺ䞣ؐⳌㄝˈֱ⬭ॳᴹⱘ䏃⬅㸼乍Ǆ ϟ䴶Џ㽕ҟ㒡 RIP 䏃⬅ⱘᅮᳳ᳈ᮄᴎࠊǄ 1ˊRIP 䏃⬅ᅮᳳ᳈ᮄᴎࠊ RIP 䏃⬅఼ᘏᰃӮ↣䱨 30 ⾦˄䖭ᰃ咬䅸ؐˈৃҹׂᬍˈ㗠Ϩгৃ㛑Ϣ䆒㕂᳝ؐѯأᏂ˅䗮䖛 UDP 520ッষҹ RIP ᑓ᪁ᑨㄨᮍᓣ৥䚏ሙ䏃⬅఼থ䗕ⱘϔϾ䏃⬅᳈ᮄࣙˈࣙЁࣙᣀњᴀ䏃⬅఼Ϟⱘ ᅠᭈⱘ䏃⬅㸼˄䰸њ㹿Ā∈ᑇߚࡆāᴎࠊᡥࠊⱘ䏃⬅㸼乍˅ˈ⫼ᴹ৥䚏ሙ䏃⬅఼ᦤկ䏃⬅᳈ᮄˈৠ ᯊ⫼ᴹ৥䚏ሙ䏃⬅఼䆕ᯢ㞾Ꮕⱘᄬ೼ǄRIP ⱘ䏃⬅㸼ЁЏ㽕ࣙᣀĀⳂⱘ㔥㒰āǃĀϟϔ䏇ഄഔā੠ Ā䎱⾏ā䖭ϝϾᄫ↉ˈখ㾕೒ 8-3Ǆ བᵰϔϾ䏃⬅఼೼ 180 ⾦˄䖭гᰃ咬䅸ؐˈৃҹׂᬍ˅ݙ≵᳝ᬊࠄᶤϾ䚏ሙ䏃⬅఼থᴹⱘ䏃⬅ ᳈ᮄˈ߭䖭Ͼ䏃⬅఼ህӮᷛ䆄䆹䚏ሙ䏃⬅఼Ўϡৃ䖒䏃⬅఼ˈՓ䖭Ͼ䚏ሙ䏃⬅఼໘Ѣᡥࠊ਼ᳳǄᔧ 䏃⬅఼໘Ѣᡥࠊ਼ᳳݙˈᅗҡ✊⫼Ѣ৥ࠡ䕀থ᭄᥂ࣙˈԚ㔥㒰Ёⱘ݊Ҫ䏃⬅఼ϡᄺдࠄ䖒䆹䏃⬅఼ ᠔䖲㔥㒰ⱘ䏃⬅ֵᙃˈ䰸䴲ᰃϔᴵ᳈དⱘࠄ䖒䆹䏃⬅఼᠔䖲㔥㒰ⱘ䏃⬅ֵᙃˈབᴀᴹᰃ 3 䏇ˈ೼ᡥ ࠊ਼ᳳݙᄺࠄњϔᴵ 2 䏇ⱘ䏃⬅ֵᙃǄԚᡥࠊ਼ᳳ䖛ৢˈेՓᰃᏂⱘ䏃⬅ֵᙃг᥹ফǄ བᵰ೼䖲㓁ⱘ 240 ⾦˄䖭гᰃ咬䅸ؐˈৃҹׂᬍ˅ݙ䖬≵ᬊࠄ䖭Ͼ䏃⬅఼ⱘ䏃⬅᳈ᮄˈ߭ᴀഄ 䏃⬅఼Ӯ೼䏃⬅㸼Ёߴ䰸Ϣ䆹䚏ሙ䏃⬅఼Ⳍ݇ⱘ䏃⬅㸼乍Ǆ ⬅ℸৃ㾕ˈ䖭Ͼ䏃⬅᳈ᮄϡҙᕅડⴔᭈϾ RIP 㔥㒰Ёⱘ䏃⬅఼Ϟ᳔⬅㸼ⱘ᳈ᮄ੠᠔᳝䳔㽕ࠄ 䖒ˈ៪㗙㒣䖛䆹䏃⬅఼ⱘ᭄᥂ࣙ䏃⬅ˈ䖬ᕅડⴔ݊Ҫ䚏ሙ䏃⬅఼ᰃ৺ᔧᅗᄬ೼Ǆ䆩ᛇϔϟˈབᵰ᳝ ϔϾ᭄᥂ࣙᰃ㽕থ䗕ࠄ䖲᥹ᶤϾᶤϾ RIP 䏃⬅఼ⱘ㔥㒰ⱘϔৄЏᴎϞˈԚ䖭ৄ RIP 䏃⬅఼ᔧᯊᙄད ߎ⦄њᬙ䱰ˈ≵᳝䖭Ͼ䏃⬅఼᳈ᮄᴎࠊⱘ䆱ˈ݊Ҫ䏃⬅఼гህϡⶹ䘧ᅗᔧࠡߎ⦄њᬙ䱰ˈҡᣝॳᴹ ⱘ䏃⬅䏃ᕘӴ䕧᭄᥂ࣙˈ㒧ᵰᔧ✊ᰃ᭄᥂ࣙᘏᰃ᮴⊩ࠄ䖒ⳂⱘЏᴎњˈሑㅵৃ㛑㒣䖛໮⃵ᇱ䆩Ǆ 2ˊRIP 䏃⬅ᅮᳳ᳈ᮄᴎࠊ㾷ᵤ⼎՟ Ўњ᳈དഄ⧚㾷 RIP ण䆂䏃⬅㸼ⱘ᳈ᮄᴎࠊˈϟ䴶ҹ೒ 8-6 ᠔⼎ⱘㅔऩⱘѦ䖲㔥㒰Ў՟ᴹ䅼䆎 ೒Ё৘Ͼ䏃⬅఼Ёⱘ䏃⬅㸼ᰃᗢḋᓎゟⱘǄ ೒ 8-6 RIP 䏃⬅㸼ᓎゟ㔥㒰⼎՟ ˄1˅೼ϔᓔྟˈ᠔᳝䏃⬅఼Ёⱘ䏃⬅㸼া᳝㞾Ꮕ᠔Ⳉ᥹䖲᥹ⱘ㔥㒰ⱘ䏃⬅㸼乍ֵᙃǄԚϡᰃ RIP 䏃⬅㸼乍ˈᰃⳈ䖲䏃⬅㸼乍ˈ᮴䳔ϟϔ䏇˄⫼Ā--ā㸼⼎˅ˈᑺ䞣Ā䎱⾏āгഛЎ 0 ˈ৘䏃⬅

(6)

๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ ఼ⱘ߱ྟ䏃⬅㸼བ೒ 8-7 ᠔⼎ˈഛা᳝ϸᴵⳈ䖲㔥㒰ⱘ䏃⬅㸼乍Ǆ R1 ⱘ䏃⬅㸼 R2 ⱘ䏃⬅㸼 R3 ⱘ䏃⬅㸼 Ⳃⱘ㔥㒰 ϟϔ䏇䎱⾏ Ⳃⱘ㔥㒰 ϟϔ䏇䎱⾏ Ⳃⱘ㔥㒰 ϟϔ䏇䎱⾏ 10.0.0.0 ü 0 20.0.0.0 ü 0 30.0.0.0 ü 0 20.0.0.0 ü 0 30.0.0.0 ü 0 40.0.0.0 ü 0 ೒ 8-7 R1ǃR2 ੠ R3 ⱘ߱ྟ䏃⬅㸼 ˄2˅᥹ϟᴹˈ৘䏃⬅఼ህӮᣝ䆒㕂ⱘ਼ᳳ˄咬䅸Ў 30 ⾦˅৥䚏ሙ䏃⬅఼থ䗕䏃⬅᳈ᮄњǄ ݋ԧાϾ䏃⬅఼Ӯܜথ䗕䏃⬅᳈ᮄˈপއѢાϾ䏃⬅఼ܜᓔњǄ⦄؛䆒䏃⬅఼ R2 ܜᬊࠄᴹ㞾䏃 ⬅఼ R1 ੠ R3 ⱘ䏃⬅᳈ᮄˈ✊ৢህ᳈ᮄ㞾Ꮕⱘ䏃⬅㸼ˈབ೒ 8-8 ᠔⼎ǄҢЁৃҹⳟߎˈᅗᮄ⏏ࡴ њߚ߿䗮䖛 R1 ੠ R3 ࠄ䖒 10.0.0.0 㔥㒰੠ 30.0.0.0 㔥㒰ⱘ䏃⬅㸼乍ˈᑺ䞣ؐഛЎ 1ˈ಴Ўᅗা㒣䖛њϔ䏇Ǆ ˄3˅R2 ᳈ᮄ㞾Ꮕⱘ䏃⬅㸼ৢˈӮᡞᅠᭈⱘ䏃⬅㸼থ㒭䚏ሙ䏃⬅఼ R1 ੠ R3Ǆ䏃⬅఼ R1 ੠ R3 ߚ߿ݡ䖯㸠᳈ᮄǄḍ᥂ࠡ䴶ҟ㒡ⱘ RIP 䏃⬅㸼᳈ᮄⱘ㾘߭ৃҹⶹ䘧ˈR1 佪ܜᰃᡞҢ R2 Ϟ᥹ᬊࠄⱘ བᵰ೒ 8-8 ⱘ䏃⬅㸼Ёˈᇍ↣乍ᑺ䞣䖯㸠ࡴ 1ˈᕫࠄⱘ䏃⬅㸼བ೒ 8-9 ᠔⼎Ǆ Ⳃⱘ㔥㒰 ϟϔ䏇䎱⾏ Ⳃⱘ㔥㒰 ϟϔ䏇䎱⾏ 20.0.0.0 ü 0 20.0.0.0 20.0.0.9 1 30.0.0.0 ü 0 30.0.0.0 20.0.0.9 1 10.0.0.0 20.0.0.7 1 10.0.0.0 20.0.0.9 2 40.0.0.0 30.1.1.1 1 40.0.0.0 20.0.0.9 2 ೒ 8-8 R2 ೼䏃⬅᳈ᮄৢⱘ䏃⬅㸼 ೒ 8-9 R1 ᇍᬊࠄⱘᴹ㞾 R2 䏃⬅㸼䖯㸠ᑺ䞣ࡴ 1 ৢᔶ៤ⱘ䏃⬅㸼 ˄4˅R1 ݡᡞ೒ 8-9 ᠔⼎ⱘ䏃⬅㸼Ϣ㞾Ꮕॳᴹⱘ䏃⬅㸼˄೒ 8-6 ЁⱘᎺ೒᠔⼎˅䖯㸠↨䕗ˈ޵ ᰃᮄ⏏ࡴⱘˈ੠ᑺ䞣ؐᇣѢㄝѢॳᴹⱘ䏃⬅㸼乍ഛᇚ᳈ᮄˈᑺ䞣ؐ᳈໻ⱘ䏃⬅㸼乍ᇚᗑ⬹᳈ᮄǄ㒣䖛㸠↨䕗থ⦄᳝ϸᴵᮄⱘ䏃⬅㸼乍ˈ݊Ⳃⱘ㔥㒰ߚ߿Ў 30.0.0.0 ੠ 40.0.0.0ˈⳈ᥹೼䏃⬅㸼Ё⏏ ࡴǄ㗠ॳᴹᏆ᳝ⱘϸᴵ 10.0.0.0 ੠ 20.0.0.0 㸼乍ˈথ⦄䏃⬅ᑺ䞣˄Ā䎱⾏ā˅ؐ 1 ↨ॳᴹⱘ 0 䖬໻ˈ ᗑ⬹᳈ᮄˈ㒧ᵰህᕫࠄ R1 ᳈ᮄৢⱘ䏃⬅㸼ˈབ೒ 8-10 ᠔⼎Ǆ ⫼ৠḋⱘᮍ⊩ৃҹᕫߎ R3 ೼ᬊࠄ R2 䏃⬅᳈ᮄৢⱘ䏃⬅㸼བ೒ 8-11 ᠔⼎ǄԚ RIP 䏃⬅ण䆂ᄬ ೼ϔϾ䯂乬ˈ䙷ህᰃ㔥㒰ᬊᬯ↨䕗᜶ˈᔧ㔥㒰ߎ⦄ᬙ䱰ᯊˈ㽕㒣䖛↨䕗䭓ⱘᯊ䯈ᠡ㛑ᇚℸֵᙃӴ䗕 ࠄ᠔᳝ⱘ䏃⬅఼ˈ㗠ϨЁ䯈᳝䆌໮ᰃ᮴ᬜ䏃⬅᳈ᮄǄ Ⳃⱘ㔥㒰 ϟϔ䏇䎱⾏ Ⳃⱘ㔥㒰 ϟϔ䏇䎱⾏ 10.0.0.0 ü 0 30.0.0.0 ü 0 20.0.0.0 ü 0 40.0.0.0 ü 0 30.0.0.0 20.0.0.9 1 10.0.0.0 30.0.0.2 2 40.0.0.0 20.0.0.9 2 20.0.0.0 30.0.0.2 1 ೒ 8-10 R1 ೼ᬊࠄ R2 䏃⬅᳈ᮄৢⱘ䏃⬅㸼 ೒ 8-11 R3 ೼ᬊࠄ R2 䏃⬅᳈ᮄৢⱘ䏃⬅㸼 ҡҹ೒ 8-6 Ў՟ˈ⦄೼ϝϾ䏃⬅఼䛑Ꮖ㒣ᓎゟњ৘㞾ⱘ〇ᅮ䏃⬅㸼ˈ؛䆒 R1 䏃⬅఼੠㔥 1 ˄10.0.0.0˅ⱘ䖲᥹㒓䏃ᮁᓔњǄℸᯊ R1 ৃҹゟेথ⦄ˈᑊ᳈ᮄ㞾Ꮕⱘ䏃⬅㸼ˈᇚࠄ 10.0.0.0 ⱘ䏃

(7)

๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ ⬅㸼乍䎱⾏ᬍЎ 16˄ेϡৃ䖒˅ˈᑊ೼ 30 ⾦ৢᇚℸ䏃⬅᳈ᮄֵᙃথ㒭 R2ǄԚᰃˈR2 Ң R3 ᕫࠄⱘ 䏃⬅᳈ᮄᰃĀ㒣䖛 R2 ࠄ䖒 10.0.0.0 㔥㒰ⱘ䎱⾏Ў 2āˈᯢᰒᑺ䞣ؐ᳈ᇣˈѢᰃ R2 ᇚℸ䏃⬅㸼乍᳈ ᮄЎĀ㒣䖛 R3 ࠄ䖒 10.0.0.0 ⱘ䎱⾏Ў 3āˈ✊ৢݡ䗮䖛䏃⬅᳈ᮄথ㒭 R3ˈℸᯊ R3 ⱘ䏃⬅㸼Ё᳈ᮄ ЎĀ㒣䖛 R2 ࠄ䖒 10.0.0.0 㔥㒰ⱘ䎱⾏Ў 4āǄR3 ݡ䗮䖛䏃⬅᳈ᮄথ㒭 R2 ֵᙃˈ㒧ᵰᰃĀ㒣䖛 R3 ࠄ䖒 10.0.0.0 㔥㒰ⱘ䎱⾏Ў 5āˈϔⳈབℸড໡ˈⳈࠄ䆹䏃⬅㸼乍ⱘ䎱⾏䖒ࠄ 16ˈR2 ੠ R3 ᠡⶹ䘧 10.0.0.0㔥㒰ᰃϡৃ䖒ⱘǄ Ўњ㾷އ䖭ϔϡ䎇ˈѻ⫳њ∈ᑇߚࡆᡔᴃˈህᰃৠϔ䏃⬅㸼乍᳈ᮄϡݡҢ᥹ᬊ䆹䏃⬅㸼乍ⱘ᥹ ষথ䗕ߎএˈ݋ԧᇚ೼ᴀゴৢ䴶ҟ㒡Ǆϟ䴶ݡ݋ԧҟ㒡 RIP 䏃⬅ⱘᬊᬯᴎࠊǄ

8.1.4 RIP 䏃⬅ᬊᬯᴎࠊ

ӏԩ䎱⾏ⶶ䞣㉏䏃⬅䗝ᢽण䆂˄RIP гᰃ䖭㉏䏃⬅ण䆂˅䛑᳝ϔϾ䯂乬ˈ䏃⬅఼ϡⶹ䘧㔥㒰ⱘ ܼሔᚙމˈ䏃⬅఼ᖙ乏ձ䴴Ⳍ䚏䏃⬅఼ᴹ㦋প㔥㒰ⱘৃ䖒ֵᙃǄ⬅Ѣ䏃⬅᳈ᮄֵᙃ೼㔥㒰ϞӴ᪁ ᜶ˈ᠔ҹ᠔᳝䎱⾏ⶶ䞣䏃⬅ㅫ⊩䛑᳝ϔϾᬊᬯ᜶ⱘ䯂乬ˈ䖭Ͼ䯂乬ᇚᇐ㟈㔥㒰Ё৘䏃⬅఼䏃⬅ֵᙃ ϡϔ㟈ⱘ⦄䈵ѻ⫳ǄRIP ण䆂Փ⫼ҹϟᴎࠊৃҹޣᇥ಴㔥㒰Ϟⱘϡϔ㟈ᗻᏺᴹⱘ䏃⬅䗝ᢽ⦃䏃ⱘৃ 㛑ᗻǄ 1ˊ䆄᭄ࠄ᮴か໻ᴎࠊ RIP ण䆂ܕ䆌᳔໻䏇᭄ؐЎ 15Ǆ໻Ѣ 15 ⱘⳂⱘഄ㹿䅸Ўᰃϡৃ䖒ⱘǄ䖭Ͼ᭄ᄫ೼䰤ࠊњ㔥㒰 ໻ᇣⱘৠᯊг䰆ℶњϔϾিخĀ䆄᭄ࠄ᮴か໻āⱘ䯂乬Ǆ䆄᭄ࠄ᮴か໻ᴎࠊⱘᎹ԰ॳ⧚བ೒ 8-12 ᠔⼎Ǆ ೒ 8-12 䏃⬅఼ᬊᬯᴎࠊ⼎՟ ˄1˅⦄؛䆒䏃⬅఼ 1 ᮁᓔњϢ㔥㒰 A Ⳍ䖲ˈℸᯊ䏃⬅఼ 1 Ӯゟेѻ⫳ϔϾ䏃⬅᳈ᮄ৥݊䚏ሙ 䏃⬅఼ 2 ੠䏃⬅఼ 3 䗮ਞˈਞ䆝ᅗӀˈ䏃⬅఼ 1 ϡݡ᳝ࠄ䖒㔥㒰 A ⱘ䏃ᕘǄ؛䆒䖭Ͼ᳈ᮄֵᙃӴ 䕧ࠄ䏃⬅఼ 2 㹿᥼䖳њ˄CPU ᖭǃ䫒䏃ᢹาㄝ˅ˈԚࠄ䖒њ䏃⬅఼ 3ˈ᠔ҹ䏃⬅఼ 3 ӮゟेҢ䏃⬅ 㸼Ёএᥝࠄ㔥㒰 A ⱘ䏃ᕘǄ ˄2˅Ԛ⬅Ѣ䏃⬅఼ 2 ≵᳝ᬊࠄ䏃⬅఼ 1 ⱘ䖭Ͼ䏃⬅᳈ᮄֵᙃˈѢᰃᅗҡӮᅮᳳ৥ᅗⱘ䚏ሙ ˄ࣙᣀ䏃⬅఼ 1 ੠䏃⬅఼ 3˅থ䗕䏃⬅᳈ᮄֵᙃˈ䗮ਞ㔥㒰 A ᰃҹ 2 䏇ⱘ䎱⾏ৃ䖒Ǆ䏃⬅఼ 3 ᬊࠄ 䖭Ͼ᳈ᮄֵᙃৢˈ䅸Ўߎ⦄њϔᴵ䗮䖛䏃⬅఼ 2 ࠄ䖒㔥㒰 A ⱘᮄ䏃ᕘˈѢᰃ䏃⬅఼ 3 ਞ䆝䏃⬅఼ 1ˈᅗ㛑ҹ 3 䏇ⱘ䎱⾏ࠄ䖒㔥㒰 AǄ ˄3˅䏃⬅఼ 1 ೼ᬊࠄ䏃⬅఼ 3 ⱘ䏃⬅᳈ᮄৢˈህᡞ䖭ϾֵᙃࡴϞϔ䏇ৢ৥䏃⬅఼ 2 ੠䏃⬅఼

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ 3ৠᯊথߎ᳈ᮄֵᙃˈਞ䆝ᅗӀ䏃⬅఼ 1 ৃҹҹ 3 䏇ⱘ䎱⾏ࠄ䖒㔥㒰 AǄ ˄4˅ℸᯊ䏃⬅఼ 2 ೼ᬊࠄ䏃⬅఼ 1 ⱘ⍜ᙃৢˈ↨䕗থ⦄Ϣॳᴹࠄ䖒㔥㒰 A ⱘ䏃ᕘϡヺˈ᳈ᮄ ៤ৃҹҹ 4 䏇ⱘ䎱⾏ࠄ䖒㔥㒰 AǄ䖭Ͼ⍜ᙃݡ⃵Ӯথᕔ䏃⬅఼ 3ˈҹℸᕾ⦃ˈⳈࠄ䏇᭄䖒ࠄ䍙䖛 RIP ण䆂ܕ䆌ⱘ᳔໻ؐ˄೼ RIP ЁᅮНЎ 16˅ǄϔᮺϔϾ䏃⬅఼䖒ࠄ䖭Ͼؐˈᅗᇚໄᯢ䖭ᴵ䏃ᕘϡ ৃ⫼ˈᑊҢ䏃⬅㸼Ёߴ䰸ℸ䏃ᕘǄ ⬅Ѣ䆄᭄ࠄ᮴か໻䯂乬ˈ䏃⬅䗝ᢽֵᙃᇚҢϔϾ䏃⬅఼Ӵࠄ঺ϔϾ䏃⬅఼ˈ↣⃵䏇᭄ࡴ 1Ǆ䏃 ⬅䗝ᢽ⦃䏃䯂乬ᇚ᮴䰤ࠊഄ䖯㸠ϟএˈ䰸䴲䖒ࠄᶤϾ䰤ࠊǄ䖭Ͼ䰤ࠊህᰃ RIP ⱘ᳔໻䏇᭄Ǆᔧ䏃ᕘ ⱘ䏇᭄䍙䖛 15ˈ䖭ᴵ䏃ᕘᠡҢ䏃⬅㸼Ёߴ䰸Ǆ 2ˊ∈ᑇߚࡆ⊩ Ā∈ᑇߚࡆāህᰃՓ䏃⬅఼ϡ৥ᇍᑨ䏃⬅᳈ᮄ㸼乍䕧ܹⱘᮍ৥ಲӴℸᴵ䏃⬅㸼ֵᙃˈՓᅗা⊓ ϔϾᮍ৥䗮ਞǄ䗮֫ഄ䆆ህᰃˈབᵰϔᴵ䏃⬅ֵᙃᰃҢᶤϾッষᄺдࠄⱘˈ䙷МҢ䆹ッষথߎⱘ䏃 ⬅᳈ᮄЁᇚϡݡࣙ৿䆹ᴵ䏃⬅ֵᙃˈ݊ⳂⱘህᰃЎњ䙓ܡߎ⦄䏃⬅᳈ᮄ⦃䏃Ǆ ೼བ೒ 8-13 ᠔⼎ⱘ㔥㒰Ёˈ䏃⬅఼ 2 䗮䖛ᏻЁ㒻䖲᥹䏃⬅఼ 1 ੠䏃⬅఼ 3ˈϸϾ PVC˄∌Й 㰮⬉䏃˅䛑೼䏃⬅఼ 2 ⱘৠϔϾ⠽⧚᥹ষ˄S0˅ЁℶǄབᵰ೼䏃⬅఼ 2 ਃ⫼њ∈ᑇߚࡆࡳ㛑ˈ䙷М 䏃⬅఼ 3 ᇚᬊϡࠄ䏃⬅఼ 1 ⱘ䏃⬅䗝ᢽֵᙃˈডПѺ✊Ǆ಴Ў䏃⬅఼ 1ˈ៪䏃⬅఼ 3 ৥䏃⬅఼ 2 䗮 ਞⱘ䏃⬅᳈ᮄֵᙃϡӮݡҢ S0 ᥹ষ৥໪䗮ਞ㒭䏃⬅఼ 3ˈ៪䏃⬅఼ 1Ǆ ೒ 8-13 ∈ᑇߚࡆ⼎՟ ೼བ೒ 8-6 ᠔⼎ⱘ㔥㒰Ёˈབᵰ R2 ਃ⫼њ∈ᑇߚࡆࡳ㛑ˈ߭ R2 ೼ᬊࠄ R1 থᴹⱘࣙᣀ 10.0.0.0㔥㒰ⱘ䏃⬅᳈ᮄৢˈ೼৥ R1 থ䗕ⱘ䏃⬅᳈ᮄЁህϡӮݡࣙᣀ 10.0.0.0 ᇍᑨⱘ䏃⬅㸼乍њˈ 䖭ḋህৃҹ䙓ܡ䏃⬅㸼থ䗕ⱘ⅏ᕾ⦃ߎ⦄Ǆ ᳝݇ RIP ∈ᑇߚࡆᴎࠊ೼ᴀゴৢ䴶䖬᳝݋ԧⱘҟ㒡Ǆ 3ˊ↦ᗻ䗚䕀∈ᑇߚࡆ⊩ Ā∈ᑇߚࡆāࡳ㛑ᰃ䏃⬅఼⫼ᴹ䰆ℶᡞϔϾ᥹ষᕫᴹⱘ䏃⬅জҢℸ᥹ষಲӴˈᇐ㟈䏃⬅᳈ᮄ⦃ 䏃ⱘߎ⦄ǄĀ↦ᗻ䗚䕀∈ᑇߚࡆāᮍ⊩ᰃ೼᳈ᮄֵᙃЁࣙᣀ䖭ѯಲӴ䏃⬅ˈԚӮᡞ䖭ѯಲӴ䏃⬅ⱘ 䏇᭄Ⳉ᥹䆒Ў 16˄᮴か˅ˈⳈ᥹Փ䆹䏃⬅Ўϡৃ䖒䏃⬅˄䖭ৃ㛑ᰃপĀ↦ᗻ䗚䕀ā䖭МⳟԐᕜϹ䞡 ⱘৡ⿄ⱘॳ಴৻˅Ǆ䗮֫ഄ䆆ህᰃˈབᵰϔᴵ䏃⬅ֵᙃᰃҢᶤϾッষᄺдࠄⱘˈ䙷МҢ䆹ッষথߎ ⱘ䏃⬅᳈ᮄߚ㒘Ёᇚ㒻㓁ࣙ৿䆹ᴵ䏃⬅ֵᙃˈԚᇚ䖭ᴵֵᙃⱘ metric 㕂Ў 16Ǆ䗮䖛ᡞ䏇᭄䆒Ў᮴ かˈᑊᡞ䖭ᴵ䏃ᕘਞ䆝⑤䏃⬅఼ˈ㛑໳᳈ᖿⱘ⍜䰸䏃⬅ֵᙃⱘ⦃䏃ǄԚᅗ๲ࡴњ䏃⬅᳈ᮄⱘ䋳ᢙǄ

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ 4ˊֱᣕᅮᯊ఼⊩ Āֱᣕᅮᯊ఼⊩āᰃ䆒㕂䏃⬅ֵᙃ㹿ᡥࠊⱘᯊ䯈ˈ咬䅸Ў 180 ⾦Ǆᔧ䏃⬅఼᥹ᬊࠄϔϾϡৃ䖒 ⱘ䏃⬅᳈ᮄᯊˈ䏃⬅఼ᇚӮᡞ䖭ᴵ䏃⬅᳈ᮄ㕂Ѣ᮴ᬜᡥࠊ⢊ᗕˈϡݡ᥹ᬊᇍᑨ䏃⬅ⱘ᳈ᮄֵᙃˈг ϡ৥໪থ䗕䖭ᴵ䏃⬅᳈ᮄֵᙃˈϔⳈᣕ㓁ࠄ᥹ᬊࠄϔϾᏺ᳝᳈དᑺ䞣ⱘᇍᑨ䏃⬅᳈ᮄߚ㒘ˈ៪㗙䖭 Ͼֱᣕ䅵ᯊ఼ࠄᳳЎℶǄ ೼བ೒ 8-12 ᠔⼎ⱘ㔥㒰Ёˈ⬅Ѣ㒓䏃ॳ಴ˈҢ䏃⬅఼ 1 থᕔ䏃⬅఼ 2 ⱘ䏃⬅᳈ᮄ㹿ᓊ䖳ࠄ 䖒ˈ㟈Փ䏃⬅఼ 2 ϡ㛑ঞᯊ᳈ᮄˈ᠔ҹ䏃⬅఼ 2 ҡӮҹ᳈ᮄᮄⱘ䫭䇃䏃⬅ֵᙃ৥䏃⬅఼ 3 থ䗕ǄԚ Փ⫼њĀֱᣕ䅵఼᭄⊩āৢˈ䖭⾡ᚙމᇚϡӮথ⫳ˈ಴Ў䏃⬅఼ 3 ೼ᬊࠄᴹ㞾䏃⬅఼ 1 ⱘ㔥㒰 A ϡৃ䖒ⱘ䏃⬅᳈ᮄৢˈᇚ೼ 180 ⾦ݙϡ᥹ফ䗮৥㔥㒰 A ⱘᮄⱘ䏃⬅ֵᙃˈ㗠㒣䖛䖭↉ᯊ䯈ৢˈ䏃 ⬅఼ 2 гᏆℷ⹂䖯㸠њ᳈ᮄˈᇚϡӮݡথ䗕䫭䇃ⱘ䏃⬅ֵᙃ㒭䏃⬅఼ 3Ǆ

8.1.5 RIP ᡹᭛Ḑᓣ

ࠡ䴶䇈њˈRIP Փ⫼ UDP ᡹᭛ᴹ೼䚏ሙ䏃⬅఼䯈Ѹᤶ䏃⬅㸼ˈ᠔Փ⫼ⱘ UDP ッষোЎ 520Ǆ 䗮ᐌᚙމϟ RIPv1 ᡹᭛Ўᑓ᪁᡹᭛˗㗠 RIPv2 ᡹᭛Ў㒘᪁᡹᭛ˈ㒘᪁ഄഔЎ 224.0.0.9ˈ咬䅸↣䱨 30 ⾦৥䚏ሙ䏃⬅఼থ䗕ϔ⃵䏃⬅᳈ᮄ᡹᭛Ǆབᵰ䆒໛㒣䖛 180 ⾦≵᳝ᬊࠄᴹ㞾ᇍッⱘ䏃⬅᳈ᮄ᡹ ᭛߭ᇚ᠔᳝ᴹ㞾ℸ䆒໛ⱘ䏃⬅ֵᙃᷛᖫЎϡৃ䖒ˈ㢹೼ 240 ⾦ݙҡ᳾ᬊࠄ᳈ᮄ᡹᭛ህᇚ䖭ѯ䏃⬅Ң 䏃⬅㸼Ёߴ䰸Ǆབ೒ 8-14 ᠔⼎Ў RIP 䏃⬅᳈ᮄ᡹᭛Ḑᓣˈ⊼ᛣ݊Ё v1 ⠜ᴀ੠ v2 ⠜ᴀⱘϡৠǄ ೒ 8-14 RIP ण䆂᡹᭛Ḑᓣ Command ੑҸᄫ↉ˈऴ 1 Ͼᄫ㡖ˈ⫼ᴹᣛᅮ᭄᥂᡹ߚ㒘ᰃ䇋∖ߚ㒘ˈ䖬ᰃડᑨߚ㒘Ǆ೼ v1 ⠜ᴀЁЏ㽕 ᳝ҹϟಯ⾡ߚ㒘㉏ൟ˖Request˄䇋∖ˈᇍᑨؐЎ 1˅ǃResponse˄ડᑨˈᇍᑨؐЎ 2˅ǃTraceon˄ਃ ⫼䎳䏾ᷛ䆄ˈᇍᑨؐЎ 3ˈ㞾 v2 ⠜ᴀৢᏆ㒣⎬≄˅ǃTraceoff˄݇䯁䎳䏾ᷛ䆄ˈᇍᑨؐЎ 4ˈ㞾 v2 ⠜ᴀৢᏆ㒣⎬≄˅Ǆ䇋∖ߚ㒘ᰃ䇋∖䚏ሙ䏃⬅఼থ䗕ܼ䚼៪䚼ߚ䏃⬅㸼ֵᙃⱘߚ㒘ˈડᑨߚ㒘ৃҹ ᰃ䏃⬅఼Џࡼᦤկⱘ਼ᳳᗻ䏃⬅᳈ᮄߚ㒘៪㗙ᇍ䇋∖ߚ㒘ⱘડᑨǄ Version ⠜ᴀᄫ↉ˈऴ 1 Ͼᄫ㡖ˈv1 ⠜ᴀؐЎ 1ˈv2 ⠜ᴀؐЎ 2Ǆ Unused ᳾Փ⫼ⱘᄫ↉ˈऴ 2 Ͼᄫ㡖ˈؐ೎ᅮЎ 0Ǆ Address Family Identifier˄AFI˅

ഄഔᮣᷛ䆚ヺᄫ↉ˈऴ 2 Ͼᄫ㡖ˈᣛߎ᠔Փ⫼ⱘഄഔᮣǄRIP 䆒䅵⫼Ѣᨎᏺ໮⾡ϡৠण䆂ⱘ䏃 ⬅ֵᙃˈ↣Ͼ乍䛑᳝ഄഔᮣᷛᖫᴹ㸼ᯢՓ⫼ⱘഄഔ㉏ൟˈIP ഄഔⱘ AFI ᰃ 2Ǆ

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ Route Tag 䏃⬅ᷛ䆄ᄫ↉ˈऴ 2 Ͼᄫ㡖ˈᦤկऎߚݙ䚼䏃⬅˄⬅ RIP ᄺᕫ˅੠໪䚼䏃⬅˄⬅݊Ҫण䆂ᄺ ᕫ˅ⱘᮍ⊩ǄᅗᨎᏺⴔϔϾ EGP ੠ BGP ⱘ㞾⊏㋏㒳োǄ䆹ᄫ↉ҙ೼ v2 ⠜ᴀՓ⫼ˈՓ⫼ᇍᑨ໪䚼䏃 ⬅ⱘᷛ䆄ؐˈv1 ⠜ᴀϡ⫼˄ؐ೎ᅮЎ 0˅ˈ಴Ў v1 ⠜ᴀϡᬃᣕ⬅݊Ҫ㉏ൟ䏃⬅䞡থᏗЎ RIP 䏃⬅Ǆ IP Address IPഄഔᄫ↉ˈऴ 4 Ͼᄫ㡖ˈᣛᅮ䏃⬅ⱘⳂⱘ㔥㒰ഄഔˈৃҹᰃᷛޚ㔥↉ഄഔǃᄤ㔥ഄഔǄ Subnet Mask ᄤ㔥᥽ⷕᄫ↉ˈऴ 4 Ͼᄫ㡖ˈᣛᅮⳂⱘ㔥㒰ⱘᄤ㔥᥽ⷕˈҙ೼ v2 ⠜ᴀЁՓ⫼ˈv1 ⠜ᴀЁ䆹ᄫ ↉ؐ೎ᅮЎ 0Ǆ಴Ў v1 ⠜ᴀϡᬃᣕ᮴㉏߿㔥㒰ˈгህᰃϡᬃᣕᄤ㔥ˈҙᬃᣕᷛޚⱘ᳝㉏㔥㒰ˈℸ ᯊ݋ԧ㔥↉ⱘᄤ㔥᥽ⷕᰃ೎ᅮⱘǄ Next Hop ϟϔ䏇ᄫ↉ˈऴ 4 Ͼᄫ㡖ˈᣛߎ RIP 䏃⬅ⱘϟϔ䏇ⱘ IP ഄഔǄབᵰЎ 0.0.0.0ˈ߭㸼⼎থᏗℸ ᴵ䏃⬅ֵᙃⱘ䏃⬅఼ഄഔህᰃ᳔Ӭϟϔ䏇ഄഔǄ䆹ᄫ↉гҙ೼ v2 ⠜ᴀЁՓ⫼ˈv1 ⠜ᴀЁ䆹ᄫ↉ؐ ೎ᅮЎ 0ˈ಴Ў v1 ⠜ᴀ䞛⫼ⱘᰃᑓ᪁ᮍᓣথ䗕ˈ᮴݋ԧⱘϟϔ䏇Ǆ Metric RIP 䏃⬅ⱘ Metric˄ᑺ䞣˅ؐᄫ↉ˈгህᰃĀ䎱⾏āؐˈऴ 4 Ͼᄫ㡖ˈ᳔໻᳝ᬜؐЎ 15ˈ16 ᯊ㸼⼎䆹䏃⬅ϡৃ䖒њǄ Ǐ䇈ᯢǐၽྻ౨ჼّ RIP ͱำْᆓխᄯࢶדนq෈ϦrďHeaderĐۤqাဎζົrďRoute

EntriesĐ०ӖϦדdq෈Ϧrͧࣳ CommandcVersion ۤ Unused უసّᆓխēୣဥᆓխ՛೫ဟqা

ဎζົrdၽྡྷّ RIP ͱำᄯēᆫտࢶྻပ 25 ّাဎζົēྙ࡜ಾၽྡྷّ RIP דᆦᄯᆫտࢶۃပ 25ّԙᄖົēއྡྷّדᆦᄯᆫտࢶྡྷұ໿ඹف 25 ඨ RIP াဎζົd

8.2 Cisco 䏃⬅఼ RIP 䏃⬅䜡㕂Ϣㅵ⧚

Ңᴀ㡖ᓔྟህ㽕ℷᓣҟ㒡 RIP ࡼᗕ䏃⬅ⱘ৘ᮍ䴶䜡㕂Ǆ↩コ RIP Џ㽕⫼ᴹ⒵䎇ЁᇣൟӕϮ㔥㒰 ݙ䚼ⱘ䏃⬅䳔∖ˈ᠔ҹᘏԧϞ RIP 䏃⬅ⱘ䜡㕂䖬ᰃ䴲ᐌㅔऩⱘǄ᳔෎ᴀⱘ䜡㕂ህਃ⫼ RIP ण䆂ˈ✊ ৢ䜡㕂ϔѯᖙ㽕ⱘখ᭄ˈ݊Ҫ䜡㕂ˈڣ RIP 䅸䆕ǃRIP ∈ᑇߚࡆǃ⑤ IP ഄഔ⹂䅸ㄝ⡍ᗻ䛑ᰃৃ䗝 ⱘ䜡㕂ӏࡵˈা᳝೼᳝䖭ѯᮍ䴶䳔∖ᯊᠡ䖯㸠䜡㕂Ǆ Cisco 䏃⬅఼Ё RIP 䏃⬅ৃҹ䖯㸠ⱘЏ㽕䜡㕂ӏࡵབϟ˄䰸㄀ϔ乍Ўᖙ䗝䜡㕂ӏࡵ໪ˈ݊Ҫⱘ ഛЎৃ䗝䜡㕂ӏࡵ˅˖ ਃ⫼ RIP 䏃⬅䖯⿟ˈ䜡㕂 RIP খ᭄˄ᖙ䗝˅ ᣛᅮ RIP ⠜ᴀˈਃ⫼ RIP 䅸䆕˄ৃ䗝˅ ਃ⫼៪⽕⫼∈ᑇߚࡆ˄ৃ䗝˅ RIP䏃⬅∛ᘏ˄ৃ䗝˅ ⽕ℶ⑤ IP ഄഔ⹂䅸˄ৃ䗝˅ RIP䏃⬅᳈ᮄࣙ䯈ᓊᯊ䜡㕂˄ৃ䗝˅ IP-RIPᓊᯊᓔྟ䜡㕂˄ৃ䗝˅ ϟ䴶ߚ߿ќҹҟ㒡Ǆ

8.2.1 RIP 䖯⿟ਃ⫼੠খ᭄䜡㕂

ᴀ㡖㽕ҟ㒡བԩ೼ Cisco 䏃⬅఼Ϟܼሔਃ⫼ RIP 䏃⬅䖯⿟ˈথᏗᴀഄ᠔䖲᥹ⱘ㔥㒰ˈ䜡㕂أ⿏

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ ߫㸼ǃ䅵ᯊ఼ㄝ䖭ѯ෎ᴀখ᭄Ǆ݊Ёҹϟϝℹᰃᖙ䳔㽕䖯㸠ⱘ˖

䗮䖛 router rip ܼሔ䜡㕂῵ᓣੑҸਃ⫼ RIP ण䆂˗

䗮䖛 network ip-address 䏃⬅఼䜡㕂῵ᓣੑҸᅷਞᴀഄ䏃⬅఼᠔䖲᥹ⱘ㔥㒰˗

䗮䖛 neighbor ip-address 䏃⬅఼䜡㕂῵ᓣੑҸᣛᅮϢᴀഄ䏃⬅఼Ⳉ᥹䖲᥹ⱘ䚏ሙ䏃⬅఼

ֵᙃǄ

঺໪䖬ৃ䗝䜡㕂 RIP 䏃⬅ᑺ䞣أ⿏੠ RIP 䏃⬅ⱘಯ⾡䅵ᯊ఼ؐǄ೼݋ԧҟ㒡 RIP 䏃⬅䖯⿟ਃ⫼ ੠খ᭄䜡㕂ᮍ⊩ࠡˈܜᴹњ㾷ҹϞᦤࠄⱘϸϾⳌᇍ↨䕗໡ᴖⱘ RIP ᡔᴃüüRIP ᑺ䞣أ⿏੠ಯ⾡ RIP䅵ᯊ఼ˈҹ֓ৃҹℷ⹂⧚㾷ᇚ೼ᴀ㡖ৢ䴶㽕ҟ㒡ⱘ݋ԧ䜡㕂ℹ偸Ǆ 1ˊRIP ᑺ䞣أ⿏ ೼䕗໻ⱘ RIP 㔥㒰Ёˈৃ㛑ᶤৄ RIP 䏃⬅఼ӮҢϡৠ䚏ሙ䏃⬅఼᥹ᬊࠄњࠄ䖒ৠϔⳂⱘ㔥㒰ˈ Ϩᑺ䞣ϔḋⱘ䏃⬅᳈ᮄˈ䖭ᯊЎњϡߎ⦄䏃⬅ކさˈህ䳔㽕ҎЎഄᬍব䖭ѯϡৠ䏃⬅㸼乍ⱘᑺ䞣 ؐˈҹᅲ⦄ϔᅮ⿟ᑺϞⱘӬܜ㑻ᅮНǄ

೼ RIP 䏃⬅᳈ᮄ⍜ᙃѸᤶЁ᳝ϔϾأ⿏˄offset˅ᴎࠊˈৃ⫼ᴹ೼䗮䖛 RIP ण䆂ᄺдࠄⱘ䏃⬅ Ё๲ࡴ⌕ܹ੠⌕ߎ䏃⬅ⱘᑺ䞣ؐˈՓᕫॳᴹ݋᳝ⳌৠⳂⱘ㔥㒰ǃⳌৠᑺ䞣ⱘ໮ᴵ䏃⬅݋᳝ϡৠⱘᑺ 䞣ؐǄ಴ЎҢৠϔ䏃⬅఼Ϟࠄ䖒ৠϔⳂⱘ㔥㒰ⱘ䏃⬅ˈᑺ䞣ؐ䍞ᇣˈӬܜ㑻䍞催ˈ᠔ҹ䖭ḋϔḋህ ৃҹՓᕫ䖭ѯॳᴹⳌৠᑺ䞣ǃⳌৠⳂⱘ㔥㒰ⱘ໮ᴵ䏃⬅݋᳝њϡৠⱘӬܜ㑻ˈ៪㗙Փᶤѯ䏃⬅᮴ᬜ ˄಴Ў RIP 䏃⬅ⱘ᳔໻ؐЎ 15ˈᔧᬍЎ 16 ៪ҹϞᯊህ᮴ᬜњ˅Ǆ ԴৃҹՓ⫼ҹϟ offset-list 䏃⬅఼䜡㕂῵ᓣੑҸˈ䗮䖛ᷛޚ ACL ߫㸼˄䰤ࠊ䏃⬅ⱘ⑤ IP ഄ ഔ˅ᴹ䰤ᅮ㽕ᑨ⫼أ⿏䆒㕂ⱘ䏃⬅ˈгৃҹ䗮䖛ᣛᅮ݋ԧⱘ᥹ষᴹ䰤ࠊ㽕ᑨ⫼أ⿏䆒㕂ⱘ䏃⬅఼ ᥹ষ˖

offset-list {access-list-number | access-list-name} {in | out} offset ̗interface-type interface-number̙

access-list-number | access-list-name˖Ѡ䗝ϔখ᭄ˈᣛᅮ⫼ᴹ䰤ࠊᑨ⫼ᑺ䞣أ⿏䆒㕂ⱘ RIP

䏃⬅⑤ IP ഄഔⱘᷛޚ ACL ߫㸼ো៪߫㸼ৡ⿄Ǆℸ ACL ᖙ乏೼䏃⬅఼Ϟৠᯊ䜡㕂Ǆ

in | out˖Ѡ䗝ϔ䗝乍ˈᣛᅮᑺ䞣أ⿏䆒㕂ᰃᑨ⫼Ѣ᥹ᬊࠄϞⱘ RIP 䏃⬅ˈ䖬ᰃথߎⱘ RIP

䏃⬅Ǆ

offset˖݋ԧ䆒㕂ⱘ RIP 䏃⬅ᑺ䞣أ⿏ؐǄ

interface-type interface-number˖Ѡ䗝ϔখ᭄ˈᣛᅮᑺ䞣أ⿏䆒㕂㽕ᑨ⫼೼ᴀഄ RIP 䏃⬅఼

ⱘાϾ᥹ষϞǄ

㽕প⍜ॳᴹ᠔䆒㕂ⱘأ⿏ˈ߭ৃ⫼ᇍᑨⱘ no offset-list {access-list-number | access-list-name} {in | out} offset {interface-type | interface-number}ੑҸǄ

བϟⱘ䜡㕂ᰃᡞ serial 1/0 ᥹ষϞ᥹ᬊࠄⱘ᠔᳝⑤ IP ഄഔ೼ ACL 1 ᠔ᣛᅮⱘ㔥↉ⱘ RIP 䏃⬅ᑺ 䞣๲ࡴ 16ˈ䖭ḋབᵰ RIP 䏃⬅఼≵᳝݊Ҫ᥹ষ᠔䖲᥹㔥㒰ਃ⫼ RIP 䖯⿟ᯊˈ߭䆹䏃⬅఼Ϟ᠔᳝ RIP 䏃⬅䛑ᰃϡৃ䖒ࠄⱘњˈ಴Ў RIP 䏃⬅ⱘ᳔໻ᑺ䞣ؐህাᰃ 15Ǆৃҹ೼⫼᠋῵ᓣ៪㗙⡍ᴗ῵ᓣϟ 䗮䖛 show ip route ੑҸᶹⳟ᠔᳝䏃⬅ᕫࠄ偠䆕ˈ݊ЁᏆ≵᳝ RIP 䏃⬅њǄ

R1(config)#router rip

R1(config-router)#offset-list 1 in 16 s1/0 R1#show ip router

1.0.0.0/24 is subnetted, 1 subnets C 1.1.1.0 is directly connected, Loopback0 12.0.0.0/24 is subnetted, 1 subnets C 12.1.1.0 is directly connected, Serial1/0

2ˊRIP 䏃⬅ण䆂ⱘಯϾЏ㽕䅵ᯊ఼

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๏ฉፌћ౥ќڦ

Cisc

o

ୟ

ᆯഗದዃᇑ࠶૙๮֩

Timer˄ᡥࠊ䅵ᯊ఼˅੠ Flush Timer˄ࠋᮄ䅵ᯊ఼˅䖭ಯϾ䅵ᯊ఼ǄᅗӀৃҹ䗮䖛 timers basic

update invalid holddown flush 䏃⬅఼䜡㕂῵ᓣੑҸߚ߿䖯㸠䜡㕂ǄᅗӀ݋ԧⱘ԰⫼ߚ߿བϟ˖

Update Timer˄᳈ᮄ䅵ᯊ఼˅

Ā᳈ᮄ䅵ᯊ఼ā˄ᇍᑨੑҸЁⱘ update খ᭄˅ᰃᣛ䖤㸠 RIP ण䆂ⱘ䏃⬅఼৥㞾Ꮕⱘ䚏ሙ䏃⬅఼ থᏗ䏃⬅᳈ᮄⱘᯊ䯈䯈䱨ˈ咬䅸ᰃ 30 ⾦ǄԚᇍѢ݋ԧ᥹ষᴹ䆆ˈ䖭Ͼᯊ䯈гϡᰃ㒱ᇍⱘˈࣙ৿њ ϔϾ䱣ᴎব䞣ˈҹ䰆ℶ᠔᳝䏃⬅఼䛑ৠᯊথ䗕䏃⬅᳈ᮄ䗴៤໾໻⌕䞣ˈ㒭ᅲ䰙ⱘ᭄᥂䗮ֵᏺᴹ໾໻ य़࡯ǄCisco IOS Ёⱘ᳈ᮄ䅵ᯊ఼ܕ䆌᳝ϔϾ৥ݙ 15%ⱘأ⿏ˈ಴ℸˈ咬䅸ᚙމϟ೼ Cisco 䏃⬅఼ Ёⱘᅲ䰙 RIP 䏃⬅᳈ᮄᯊ䯈ᰃ೼ 25.5̚30 ⾦П䯈Ǆᔧ✊ˈ䖭Ͼ䅵ᯊ఼ⱘ咬䅸ؐгᰃৃҹ⬅ㅵ⧚ਬ 㞾Ꮕׂᬍˈ݋ԧⱘᮍ⊩ህᰃ䗮䖛ࠡ䴶䇈ࠄⱘ timers basic ੑҸǄ Invalid Timer˄༅ᬜ䅵ᯊ఼˅ Ā༅ᬜ䅵ᯊ఼ā˄ᇍᑨੑҸЁⱘ invalid খ᭄˅ᰃϔϾ䩜ᇍ䏃⬅㸼Ёⱘ⡍ᅮ䏃⬅㸼乍ⱘ䅵ᯊ఼ˈ ⫼ᴹ⹂ᅮᴀഄ䏃⬅఼䅸Ў㞾Ꮕ⬅㸼Ёᶤᴵ RIP 䏃⬅᮴ᬜⱘᯊ䯈䯈䱨ˈгህᰃ䇈೼䏃⬅㸼Ёⱘ RIP 䏃 ⬅㸼乍ϡᰃ∌Й᳝ᬜⱘˈ䖭гᰃࡼᗕ䏃⬅ЁĀࡼᗕā⡍ᗻⱘϔϾ㸼⦄Ǆ RIP 䏃⬅咬䅸ⱘ༅ᬜᯊ䯈Ў 180 ⾦ˈгህᰃ咬䅸ᚙމϟˈҢ䏃⬅఼᥹ᬊࠄ䖭Ͼ䏃⬅㸼乍᳈ᮄ ᓔྟˈ೼≵᳝ৢ㓁᳈ᮄⱘᚙމϟˈ᳔໮ֱᣕ 180 ⾦Ǆབᵰ㽕ׂᬍ䖭Ͼ༅ᬜ䅵ᯊ఼ˈৠḋৃҹ⫼ࠄ ࠡ䴶䇈ࠄⱘ timers basic ੑҸˈԚ䆹䅵ᯊ఼ⱘؐ㟇ᇥᑨЎĀ᳈ᮄ䅵ᯊ఼ā˄гህᰃ update খ᭄ ؐ˅ⱘ 3 סǄ 䏃⬅఼ᰃձ᥂ҔМᴹ⹂ᅮᶤᴵ RIP 䏃⬅㸼乍ࠄњ༅ᬜᯊ䯈ਸ਼˛䙷ህᰃ೼䖭Ͼ invalid খ᭄ᣛᅮ ⱘᯊ䯈ݙ˄咬䅸ህᰃ 180 ⾦˅≵᳝ᬊࠄࣙ৿䆹ᴵ䏃⬅ⱘ᳈ᮄ⍜ᙃǄԚ䖭䞠㽕ᯢ⹂ⱘᰃˈϡϔᅮ䴲㽕 ᶤᴵ䏃⬅㸼乍ᴀ䑿᳝᠔ব࣪ˈা㽕㛑೼䖭Ͼᯊ䯈ݙҢ䚏ሙ䏃⬅఼Ϟݡ⃵ᬊࠄࣙ৿䆹䏃⬅㸼乍ⱘ䏃⬅ ᳈ᮄࣙˈ䅽ᴀഄ RIP 䏃⬅఼ⶹ䘧䖭ᴵ䏃⬅䖬ᄬ೼ህ㸠˄ৃҹᰃ≵᳝ব࣪ⱘˈᔧ✊гৃҹᰃ᳝ব࣪ ⱘ˅Ǆህڣᄺ⫳⾏᷵೼໪㽕ᅮᳳ৥ᄺ᷵᡹ਞˈ䅽ᄺ᷵ⱘ㗕Ꮬⶹ䘧ԴϔߛℷᐌህৃҹњϔḋǄ ஍ੋแਬྸഊӾēRIP ပՇ୙ٗ໭ۤ҈֟ٗ໭०ᄵdၽ RIP Շ୙াဎٗ໭ᄯēϢݖࠧ֟ഢͧࣳ ੶ྡྷඨݧދඨাဎζົԅাဎٗ໭ͧē֗ಾ̼·ԙাဎ୶౨ჼّাဎζď҂ॴ΄qഃ଼דىrݯᄥ ൎ྽ᄥԅাဎζົෳĐ຿ঃࡢাဎ୶֟ഢাဎٗ໭ͧԅĢ֗q҈֟ٗ໭rಾࠧ֟ഢပέܤԅাဎζ ົӾঃࡢাဎ୶౨d ᔧ᳝ϔᴵᮄⱘ RIP 䏃⬅㹿ᓎゟˈ߭䆹䏃⬅ⱘ༅ᬜ䅵ᯊ఼ህӮ㹿߱ྟ࣪Ў 180 ⾦ǄRIP 䏃⬅఼↣ ᬊࠄϔ⃵ࣙ৿䆹䏃⬅㸼乍ⱘ᳈ᮄህᡞ䆹䅵ᯊ఼㕂 0Ǆгህᰃ䇈↣ᴵ RIP 䏃⬅ᖙ乏೼↣䱨䆹䅵ᯊ఼ᯊ 䯈ݙᬊࠄࣙ৿䆹ᴵ RIP 䏃⬅ⱘ᳈ᮄ⍜ᙃˈ৺߭䏃⬅఼ህᷛ䆄䆹 RIP 䏃⬅᮴ᬜˈᑊ৥᠔᳝݊䚏ሙ䏃⬅ ఼䗮ਞᇍᑨ RIP 䏃⬅ϡৃ䖒ˈ䚏ሙ䏃⬅఼೼ᬊࠄ䖭ḋⱘᑓ᪁⍜ᙃৢҡᷛ䆄䆹 RIP 䏃⬅᮴ᬜǄ䖭ᯊ䆹 ᴵ RIP 䏃⬅ᇚ䖯ܹࠄৢ䴶ⱘĀᡥࠊā˄Holddown˅䰊↉ˈԚᰃℸᯊ RIP 䏃⬅ҡ✊⫼ᴹ䕀থ᭄᥂ࣙǄ

Holddown Timer˄ᡥࠊ䅵ᯊ఼˅ Āᡥࠊ䅵ᯊ఼ā˄ᇍᑨੑҸЁⱘ holddown খ᭄˅ᰃᣛ䏃⬅఼བᵰ೼Ⳍৠⱘ᥹ষϞᬊࠄᶤϾ RIP 䏃⬅㸼乍ⱘᑺ䞣↨ॳܜᬊࠄⱘⳌৠⳂⱘ㔥㒰ⱘ RIP 䏃⬅㸼乍ⱘᑺ䞣᳈ᇣ˄гህᰃ↨ॳᴹৠⳂⱘ㔥㒰 ⱘ䏃⬅᳈Ӭ˅ˈ䙷М䏃⬅఼ᇚਃࡼϔϾĀᡥࠊ䅵ᯊ఼āˈ咬䅸Ў 180 ⾦Ǆৠḋৃҹ䗮䖛 timers basic ੑҸׂᬍᡥࠊ䅵ᯊ఼ؐˈԚгᑨ㟇ᇥㄝѢĀ᳈ᮄ䅵ᯊ఼ā˄гህᰃ update খ᭄ؐ˅ⱘ 3 סǄ Āᡥࠊ䅵ᯊ఼āЏ㽕⫼ᴹ䰆ℶ RIP 䏃⬅⦃䏃ˈ䆹䅵ᯊ఼ⱘॳ⧚ᰃᓩ⫼ϔϾᗔ⭥䞣ˈϡㅵᰃⳳⱘ 䖬ᰃ؛ⱘ䏃⬅⍜ᙃˈ䏃⬅఼ܜ䅸Ўᰃ؛⍜ᙃᴹ䙓ܡ䏃⬅⦃䏃Ǆབᵰ೼ᡥࠊ䅵ᯊ఼䍙ᯊৢ䖬᥹ফࠄ䖭 ḋⱘᑺ䞣᳈ᇣⱘ䏃⬅⍜ᙃˈ䙷М䖭ᯊ䏃⬅఼ህ䅸Ў䆹䏃⬅⍜ᙃᰃⳳⱘǄ೼ᡥࠊ䅵ᯊ఼ⱘᯊ䯈ݙ䆹䏃 ⬅㸼乍㹿ᷛ䆄Ўϡৃࠄ䖒ˈⳈࠄĀᡥࠊ䅵ᯊ఼ā䍙ᯊˈ䏃⬅఼ᠡᇍ䆹䏃⬅㸼乍䖯㸠᳈ᮄǄ

(13)

๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ Āᡥࠊ䅵ᯊ఼ā䖬ᑨ⫼Ѣᔧ RIP 䏃⬅఼Ң䚏ሙ䏃⬅఼ᬊࠄϔᴵᣛ⼎ᶤᴵ RIP 䏃⬅㸼乍ϡৃ䖒ⱘ 䏃⬅᳈ᮄᯊǄгህᰃ೼䆹ᴵ RIP 䏃⬅㸼乍ࠄњĀ༅ᬜ䅵ᯊ఼āˈ⬅䚏ሙ䏃⬅఼থ䗕䆹ᴵ䏃⬅ϡৃ䖒 ⱘ䏃⬅᳈ᮄৢˈ䖭ᴵ RIP 䏃⬅ህ䖯ܹњᡥࠊᳳˈ䖭೼ࠡ䴶ҟ㒡Āᡥࠊ䅵ᯊ఼āᯊህ᳝䇈ࠄǄ䖯ܹᡥ ࠊᳳⱘ RIP 䏃⬅ᇚ㹿ᷛ䆄Ўϡৃ䆓䯂ˈᑊϨӮ㒻㓁৥䚏ሙ䏃⬅఼থ䗕䆹䏃⬅ϡৃ䖒ⱘ䏃⬅᳈ᮄǄԚ ᰃℸᯊ RIP 䏃⬅ҡ✊⫼ᴹ䕀থ᭄᥂ࣙˈⳈࠄĀᡥࠊ䅵ᯊ఼āࠄᳳৢˈ䏃⬅఼ᠡӮ᥹ফࠄ䖒ⳌৠⳂ ⱘ㔥㒰ⱘᮄⱘ RIP 䏃⬅Ǆ Flush Timer˄ࠋᮄ䅵ᯊ఼˅ Āࠋᮄ䅵ᯊ఼ā˄ᇍᑨੑҸЁⱘ flush খ᭄˅݊ᅲᰃĀ༅ᬜ䅵ᯊ఼āⱘᓊ㓁ǄĀ༅ᬜ䅵ᯊ఼āᰃ ᡞ೼ᣛᅮⱘᯊ䯈ݙ≵᳝ᬊࠄ᳈ᮄⱘ䏃⬅㾚Ў᮴ᬜˈ㗠䖭䞠ⱘĀࠋᮄ䅵ᯊ఼ā߭ᰃᡞ೼䖭Ͼᣛᅮᯊ䯈 ݙ≵᳝ᬊࠄ䏃⬅᳈ᮄⱘ䏃⬅Ң䏃⬅㸼Ёᕏᑩߴ䰸ˈࠋᮄ䏃⬅ᢧᠥǄĀࠋᮄ䅵ᯊ఼āⱘ咬䅸ᯊ䯈Ў 240 ⾦ˈৠḋԴৃҹ䗮䖛 timers basic ੑҸׂᬍࠋᮄ䅵ᯊ఼ؐˈԚᑨᔧ໻Ѣ᠔䆒㕂ⱘĀ༅ᬜ䅵ᯊ ఼āⱘؐ˄гህᰃ invalid খ᭄ؐ˅Ǆ಴Ў៥Ӏᓎ䆂Ā༅ᬜ䅵ᯊ఼āؐᑨ㟇ᇥㄝѢ 3 סĀ᳈ᮄ䅵ᯊ ఼āؐˈ᠔ҹĀࠋᮄ䅵ᯊ఼āؐᑨ໻Ѣ 3 סĀ᳈ᮄ䅵ᯊ఼āؐǄ ৃҹ䖭М⧚㾷Ā༅ᬜ䅵ᯊ఼ā੠Āࠋᮄ䅵ᯊ఼āП䯈ⱘ݇㋏˖Ā༅ᬜ䅵ᯊ఼āⳟ៤ᰃ䆄䖛໘ ߚˈ䖬᳝ᬍ䖛㞾ᮄⱘᴎӮˈгህᰃ䆹䏃⬅䖬ৃҹ೼䏃⬅㸼Ёᄬ೼ˈᑊϨৃҹ䞡ᮄ㹿▔⌏˄೼ࠄ䖒 Āࠋᮄ䅵ᯊ఼āПࠡ䞡ᮄᬊࠄ䆹䏃⬅㸼乍ⱘ᳈ᮄᯊ˅˗㗠Āࠋᮄ䅵ᯊ఼ā߭ৃⳟ៤ᰃᓔ䰸໘ߚˈ≵ ᳝ᬍ䖛㞾ᮄⱘᴎӮњˈࠄᳳৢህӮҢ䏃⬅㸼Ёߴ䰸Ǆߴ䰸њⱘ䏃⬅ᰃϡ㛑ݡ೼䏃⬅㸼Ёᄬ೼ˈ᳈ϡ 㛑ᘶ໡њˈা㛑䞡ᮄᓎゟǄ ԚᰃĀࠋᮄ䅵ᯊ఼āϢĀ༅ᬜ䅵ᯊ఼āᰃৠᯊਃࡼⱘˈгህᰃᔧϔϾ䏃⬅㸼乍咬䅸೼ 180 ⾦ݙ ≵᳝ᬊࠄ䏃⬅᳈ᮄᯊˈĀ᮴ᬜ䅵ᯊ఼ā䍙ᯊǄℸᯊ䆹䏃⬅㸼乍ᇚ㹿ᷛᖫЎĀx.x.x.x is possibly downāˈ 㗠咬䅸ࠄњ 240 ⾦ᯊˈĀࠋᮄ䅵ᯊ఼āг䍙ᯊњˈⳈ᥹Ң䏃⬅఼ⱘ䏃⬅㸼Ёߴ䰸䆹ᴵ䏃⬅㸼乍Ǆ 3ˊRIP ਃࡼ੠খ᭄䜡㕂ℹ偸 ᴀ㡖᠔⍝ঞⱘЏ㽕ᡔᴃ೼ࠡ䴶䛑᳝ҟ㒡њˈϟ䴶ҟ㒡೼Փ⫼ RIP 䏃⬅ᯊᖙ乏㽕䖯㸠ⱘ䜡㕂˄᳝ ѯ䜡㕂ℹ偸ᰃৃ䗝ⱘ˅ˈ݋ԧ䜡㕂ℹ偸བ㸼 8-1 ᠔⼎Ǆ 㸼 8-1 RIP 䏃⬅䖯⿟ਃࡼঞখ᭄䜡㕂ℹ偸 ℹ偸 ੑҸ 䇈ᯢ 1 enable ՟བ˖ Router> enable 䖯ܹ⡍ᴗ῵ᓣǄབᵰ䜡㕂њ⡍ᴗ῵ᓣᆚⷕˈ߭㽕ᣝᦤ⼎䕧ܹℷ⹂ⱘ⡍ ᴗ῵ᓣᆚⷕᠡ㛑䖯ܹ 2 configure terminal ՟བ˖

Router# configure terminal

䖯ܹܼሔ䜡㕂῵ᓣ

3

router rip ՟བ˖

Router (config)# router rip

೼ᴀഄ䏃⬅఼Ϟਃ⫼ RIP 䏃⬅䖯⿟ˈ䖯ܹ䏃⬅఼䜡㕂῵ᓣ

4

network ip-address ՟བ˖

Router (config-router)# network 10.1.1.0

ᅷਞᴀഄ䏃⬅఼ϞⳈ᥹䖲᥹ˈ䳔㽕ਃ⫼ RIP 䏃⬅䖯⿟ⱘ㔥㒰ˈⳌᔧѢ 㽕೼ᇍᑨ㔥㒰Ёਃ⫼ RIP 䏃⬅䖯⿟Ǆ޵ᰃ䳔㽕ਃ⫼ RIP 䏃⬅䖯⿟ⱘ㔥㒰䛑㽕ऩ⣀⫼ϔᴵ䆹ੑҸ䖯㸠ᅷਞǄখ᭄ ip-address ⫼ᴹᣛᅮ㽕ᅷਞ ⱘ㔥㒰ⱘ㔥㒰ഄഔ ⼎՟ЁᅮНⱘϔϾⳈ䖲㔥㒰Ў 10.1.1.0 5 neighbor ip-address ՟བ˖ Router(config-router)# neighbor 1.1.1.2 ᅮНϔϾ䳔㽕Ϣᴀഄ䏃⬅఼Ѹᤶ䏃⬅ֵᙃⱘ䚏ሙ䏃⬅఼ǄৃᅮН໮Ͼ খ᭄ ip-address ⫼ᴹᣛᅮᇍᑨ䚏ሙ䏃⬅఼ⱘ IP ഄഔ˄ᅲ䰙ᰃ䚏ሙ䏃⬅ ఼ⱘᶤϾ᥹ষ IP ഄഔ˅ ⼎՟Ёᣛᅮⱘ݊ЁϔϾ䚏ሙ䏃⬅఼᥹ষ IP ഄഔЎ 1.1.1.2 6

offset-list access-list-number | access-list-name] {in | out} offset [interface-type interface-number]

՟བ˖

Router(config-router)# offset-list 98 in 1 Ethernet 1/0

˄ৃ䗝˅৥䗮䖛 RIP ᄺдࠄⱘ⌕ܹ៪⌕ߎ䏃⬅ᑺ䞣⏏ࡴϔϾأ⿏ˈ݋ ԧখ㾕ᴀ㡖ࠡ䴶ҟ㒡

⼎՟Ё䆒㕂ⱘᰃᇚ೼ ACL 98 Ё᠔ᅮНⱘ RIP 䏃⬅Ёˈ೼ Ethernet 1/0 ᥹ষ⌕ܹᮍ৥Ϟⱘ䏃⬅ॳᑺ䞣෎⸔Ϟࡴ 1

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ 㓁㸼 ℹ偸 ੑҸ 䇈ᯢ 7

timers basic update invalid holddown flush [sleeptime] ՟བ˖

Router(config-router)# timers basic 50 150 150 200

˄ৃ䗝˅䇗ᭈ RIP 䏃⬅ण䆂৘䅵ᯊ఼䆒㕂ˈ৘খ᭄ⱘ݋ԧ䇈ᯢখ㾕ᴀ 㡖ࠡ䴶ҟ㒡⼎՟Ё䜡㕂ⱘ᳈ᮄ䅵ᯊ఼ǃ༅ᬜ䅵ᯊ఼ǃᡥࠊ䅵ᯊ఼੠ࠋᮄ䅵ᯊ఼ⱘ ؐߚ߿Ў 50ǃ150ǃ160ǃ200 ⾦ 8 end ՟བ˖ Router(config-router)# end 䗔ߎ䏃⬅఼䜡㕂῵ᓣˈ䖨ಲ⡍ᴗ῵ᓣǄ

8.2.2 RIP ⠜ᴀᣛᅮ੠ RIP 䅸䆕ਃ⫼䜡㕂

ᴀ㡖᠔ҟ㒡ⱘ䜡㕂ӏࡵᰃৃ䗝ⱘˈҙᔧ䳔㽕೼ RIP 䏃⬅఼Ϟਃ⫼ RIPv2 ⠜ᴀˈᑊՓ⫼ RIPv2 ⠜ᴀЁⱘ䏃⬅᳈ᮄ䅸䆕ᯊᠡ䳔㽕䖯㸠Ǆ

ࠡ䴶䇈њˈRIP ण䆂᳝ϸϾ⠜ᴀˈ㗠ϨϸϾ⠜ᴀ᠔ᬃᣕⱘࡳ㛑ϡᅠܼϔḋˈ咬䅸ਃ⫼ⱘᰃ

RIPv1 ⠜ᴀǄབᵰ䏃⬅఼ᬃᣕ RIPv2 ⠜ᴀˈ㗠ϨজᛇՓ⫼ v2 ⠜ᴀⱘϔѯࡳ㛑˄བ RIP 䏃⬅᳈ᮄ

䅸䆕˅ˈ߭䳔㽕ᅠ៤ᴀ㡖᠔㽕ҟ㒡ⱘ䜡㕂ℹ偸Ǆϟ䴶ܜᴹҟ㒡Ϣᴀ㡖䜡㕂ᆚߛⳌ݇ⱘ RIP 䏃⬅᳈ ᮄ䅸䆕Ǆ

1ˊRIP 䏃⬅᳈ᮄ䅸䆕ὖ䗄

RIPv2ᬃᣕ䅸䆕ǃᆚ䩹ㅵ⧚ǃ䏃⬅∛ᘏǃCIDR ੠ VLSMǄ咬䅸ᚙމϟˈCisco IOS 䕃ӊৃҹৠ

ᯊ᥹ᬊ RIPv1 ੠ RIPv2 ⠜ᴀ⍜ᙃࣙˈԚᰃҙথ䗕 RIPv1 ⠜ᴀ᭄᥂ࣙǄԴৃҹ䗮䖛ᣛ RIPv2 ⠜ᴀˈ Փ IOS 䕃ӊҙ᥹ᬊ੠থ䗕 RIPv1 ៪㗙 RIPv2 ⠜ᴀ⍜ᙃࣙǄ㗗㰥ࠄ咬䅸㸠ЎˈԴৃҹ䜡㕂ϔϾ᥹ষ ҙথ䗕ાϾ⠜ᴀⱘ RIP ⍜ᙃࣙˈԴгৃҹ᥻ࠊϔϾ᥹ষҙ᥹ᬊાϾ⠜ᴀⱘ RIP ⍜ᙃࣙǄԚ RIPv1 ⠜ ᴀϡᬃᣕ䑿ӑ䅸䆕ǄབᵰԴথ䗕੠᥹ᬊ RIPv2 ⠜ᴀ⍜ᙃࣙˈ߭Դৃҹ೼᥹ষϞਃ⫼ RIP 䑿ӑ䅸䆕Ǆ 䗮䖛䜡㕂 RIP 䚏ሙ䏃⬅䅸䆕ࡳ㛑ᴹ乘䰆 RIP 䏃⬅఼᥹ᬊࠄℎ偫ᗻⱘ䏃⬅᳈ᮄǄ೼䜡㕂њ RIP 䏃 ⬅᳈ᮄ䅸䆕ࡳ㛑ৢˈ೼ϸϾ䚏ሙ䏃⬅఼П䯈Ѹᤶ䏃⬅ֵᙃህӮᇍ䚏ሙ䖯㸠䅸䆕ˈা᳝ᆚ䩹ϔ㟈ⱘ䏃 ⬅᳈ᮄᠡӮ᥹ᬊǄ䖭ḋህৃҹ⹂ֱ RIP 䏃⬅఼ҙҢֵӏ⑤᥹ᬊࠄৃ䴴ⱘ䏃⬅ֵᙃǄ བᵰ≵᳝ਃ⫼ RIP 䚏ሙ䏃⬅䅸䆕ࡳ㛑ˈ䴲ᥜᴗ៪㗙ᙊᛣ RIP 䏃⬅᳈ᮄৃ㛑࿕㚕ࠄ㔥㒰䗮ֵᅝ ܼǄ՟བˈϔϾ䏃⬅఼ৃ㛑Ӯথ䗕ϔϾ㰮؛ⱘ䏃⬅᳈ᮄˈՓᕫԴⱘ䏃⬅఼থ䗕䗮ֵࠄ䫭䇃ⱘⳂⱘキ ⚍Ǆ䖭⾡䕀⿏䗮ֵৃ㛑ՓᙊᛣҎਬߚᵤԴ݀ৌ㒘㒛ᴎᆚֵᙃˈ៪㗙ЁᮁԴ݀ৌℷᐌⱘ㔥㒰䗮ֵǄ㗠 ᳝њ RIP 䏃⬅᳈ᮄ䅸䆕ࡳ㛑ৢˈህৃҹ䰏ℶԴⱘ RIP 䏃⬅఼᥹ᬊӏԩℎ偫ᗻ˄ᆚ䩹ϡℷ⹂ⱘ䛑䅸Ў ᰃᏺ᳝ℎ偫ᗻⱘ˅ⱘ䏃⬅᳈ᮄǄ RIP ᳝ϸ⾡㉏ൟⱘ䚏ሙ䅸䆕˖㒃᭛ᴀ䅸䆕੠ MD5 ⍜ᙃᨬ㽕䅸䆕ǄᅗӀⱘ䅸䆕ᮍᓣᰃϔḋⱘˈ াᰃ MD5 䅸䆕Ёথ䗕ⱘᰃ㒣䖛ࡴᆚⱘ⍜ᙃᨬ㽕ˈ㗠ϡᰃথ䗕㞾Ꮕⱘ䅸䆕ᆚ䩹ˈ᳈ࡴᅝܼǄ⍜ᙃᨬ 㽕ᰃՓ⫼䅸䆕ᆚ䩹੠থ䗕ⱘ⍜ᙃ݅ৠ߯ᓎⱘˈԚᰃϡথ䗕㞾Ꮕⱘ䅸䆕ᆚ䩹ˈҹ䰆೼Ӵ䕧䖛⿟Ё㹿៾ পǄ㒃᭛ᴀ䅸䆕Ӯ䗮䖛㒓䏃থ䗕㞾Ꮕⱘ䅸䆕ᆚ䩹ˈᰒ✊ᅝܼᗻϡ໳催Ǆ೼㒃᭛ᴀ䅸䆕Ёˈ↣ϾখϢ 䗮ֵⱘ䚏ሙ䏃⬅఼ᖙ乏݅ѿϔϾ䅸䆕ᆚ䩹Ǆ䖭Ͼᆚ䩹䳔㽕೼↣Ͼ䏃⬅఼Ϟ䜡㕂ǄৃҹЎϡৠण䆂䗮 ֵ䜡㕂ϡৠⱘᆚ䩹ˈԚᰃ↣Ͼᆚ䩹ᖙ乏⫼ϔϾᆚ䩹ো䖯㸠ᷛ䆚Ǆ 2ˊRIP 䏃⬅᳈ᮄ䅸䆕ॳ⧚ 䗮ᐌˈ೼ RIP 䏃⬅᳈ᮄࣙথ䗕ৢˈӮᣝҹϟ⌕⿟䖯㸠㒃᭛ᴀ䅸䆕˖ ˄1˅ϔ䏃⬅఼থ䗕ϔϾᏺ᳝ᅗ㞾Ꮕ䅸䆕ᆚ䩹੠Ⳍᑨⱘᆚ䩹োⷕⱘ䏃⬅᳈ᮄࠄ䚏ሙ䏃⬅఼Ǆ೼ া᳝ϔϾण䆂ⱘᚙމϟˈᆚ䩹োᘏЎ 0Ǆ䚏ሙ䏃⬅఼᥹ᬊࠄ䏃⬅᳈ᮄৢˈ⫼ᅗ㞾Ꮕⱘ䅸䆕ᆚ䩹Ϣ᳈ ᮄࣙЁⱘᆚ䩹䖯㸠↨ᇍǄ ˄2˅བᵰথ⦄ϸϾᆚ䩹ᰃϔḋⱘˈ䚏ሙ RIP 䏃⬅఼ህ᥹ᬊ䖭Ͼ᳈ᮄࣙˈ৺߭䚏ሙ RIP 䏃⬅ᢦ

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ 㒱᥹ᬊ䖭Ͼ᳈ᮄࣙǄ MD5 䅸䆕ᮍᓣϢ㒃᭛ᴀ䅸䆕ᮍᓣⱘᎹ԰ॳ⧚㉏ԐˈাᰃᅗҢϡӮ೼㒓䏃ЁⳈ᥹থ䗕㞾Ꮕⱘᆚ 䩹ˈ㗠ᰃՓ⫼ MD5 ㅫ⊩ѻ⫳ϔϾજᏠᨬ㽕⍜ᙃǄ✊ৢ⫼䖭Ͼᨬ㽕䱣ⴔ䏃⬅᳈ᮄࣙϔ䍋থ䗕ˈҹ⹂ ֱϡ㛑䗮䖛೼㒓䏃Ϟً਀㗠㦋প䅸䆕ᆚ䩹Ǆ ঺໪ˈRIP 䏃⬅᳈ᮄ䅸䆕ᰃՓ⫼ᆚ䩹䫒ᴹ䜡㕂ǃㅵ⧚ᆚ䩹ⱘǄᔧԴ䜡㕂њϔϾᆚ䩹䫒ৢˈԴৃ ҹᣛᅮϔ㋏߫ᏺ᳝᳝ᬜᳳⱘᆚ䩹˄ⳌᔧѢ߯ᓎњϔϾᆚ䩹ᑧ˅ˈIOS 䕃ӊৃҹ䕂⌕Փ⫼䖭ѯᆚ䩹ᇍ 䚏ሙ RIP 䏃⬅఼ⱘ䏃⬅᳈ᮄ䖯㸠䅸䆕ˈ䖭ḋৃҹޣᇥ⸈㾷䅸䆕ᆚ䩹ⱘৃ㛑ᗻˈ᳈ࡴᅝܼǄ 3ˊRIP ⠜ᴀᣛᅮ੠ RIP 䅸䆕ਃ⫼䜡㕂ℹ偸

ᣛᅮ RIP ⠜ᴀⱘੑҸᰃ versionˈ㗠Ϩ䖬ৃҹ䩜ᇍ݋ԧ᥹ষᣛᅮথ䗕៪㗙ৃҹ᥹ᬊⱘ RIP ⍜ᙃ ࣙ⠜ᴀˈ᠔Փ⫼ⱘੑҸߚ߿ᰃ˖ip rip send version ੠ ip rip receive versionǄਃ⫼ RIPv2 䅸䆕ⱘ䜡㕂ℹ偸ࣙᣀϸϾੑҸˈϔᰃ⫼Ѣ䜡㕂䅸䆕ᆚ䩹䫒ⱘ ip rip authentication key-chain ੑҸˈ঺ϔϾᰃ ᣛᅮ䅸䆕ᮍᓣⱘ ip rip authentication mode {text | md5}ੑҸǄ݋ԧ䜡㕂ℹ偸བ㸼 8-2 ᠔⼎Ǆ

㸼 8-2 RIP ⠜ᴀᣛᅮ੠ RIP 䅸䆕ਃ⫼ⱘ䜡㕂ℹ偸 ℹ偸 ੑҸ 䇈ᯢ 1 enable ՟བ˖ Router> enable 䖯ܹ⡍ᴗ῵ᓣǄབᵰ䜡㕂њ⡍ᴗ῵ᓣᆚⷕˈ߭㽕ᣝᦤ⼎䕧ܹℷ⹂ⱘ⡍ᴗ῵ᓣᆚⷕᠡ㛑䖯ܹ 2 configure terminal ՟བ˖

3

router rip ՟བ˖

Router(config)# router rip

ਃ⫼ RIP 䏃⬅䖯⿟ˈ䖯ܹ䏃⬅఼䜡㕂῵ᓣ 4 version {1 | 2} ՟བ˖ Router(config-router)# version 1 ˄ৃ䗝˅ܼሔ䜡㕂 RIP 䏃⬅఼Փ⫼ⱘ RIP ण䆂⠜ᴀˈৃ ҹϡܼሔᣛᅮˈ㗠೼ϟ䴶෎Ѣ᥹ষᣛᅮ ৃ⫼ no version ੑҸߴ䰸ܼሔ䜡㕂ˈᘶ໡咬䅸ⱘ⠜ᴀᬃ ᣕˈेৃҹৠᯊ᥹ᬊ v1 ੠ v2 ⠜ᴀⱘ RIP 䏃⬅᳈ᮄࣙˈ Ԛҙৃҹথ䗕 v1 ⠜ᴀⱘ䏃⬅᳈ᮄࣙ 5 exit ՟བ˖ Router(config-router)# exit 䗔ߎ䏃⬅఼䜡㕂῵ᓣˈ䖨ಲܼሔ䜡㕂῵ᓣ 6 key chain name-of-chain

՟བ˖

Router(config)# key chain rip-md5

ᣛᅮ RIP 䏃⬅᳈ᮄ䅸䆕᠔⫼ⱘᆚ䩹䫒˄ҙ೼ਃ⫼ RIPv2 ᯊ᳝ᬜ˅Ǆখ᭄ name-of-chain ⫼ᴹᣛᅮᆚ䩹ৡ⿄ǄϔϾ ᆚ䩹䫒Ёৃҹ᳔໮᳝ 2147483647 Ͼᆚ䩹 7 key key-id ՟བ˖

Route (config-keychain)# key 1

Ўᆚ䩹䫒Ёⱘ↣Ͼᆚ䩹ᣛᅮϔϾᆚ䩹 IDˈ᳝໮ᇥϾᆚ 䩹ˈህ䳔㽕䜡㕂໮ᇥϾᆚ䩹 IDǄখ᭄ key-id ⱘপؐ㣗ೈ Ў 0 ~ 2147483647ˈϡϔᅮᰃ䖲㓁ⱘǄৃ⫼ no key key-id ੑҸߴ䰸ॳᴹ᠔䜡㕂ⱘᆚ䩹 ID 8 key-string text ՟བ˖

Router (config-keychain)# key-string winda

ᣛᅮ⫼Ѣ RIP 䏃⬅᳈ᮄ䅸䆕ⱘⳳℷᆚ䩹ᄫヺІǄৃ⫼ no key-string text ੑҸߴ䰸ॳᴹ᠔䜡㕂ⱘᆚ䩹ᄫヺІ

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accept-lifetime start-time {infinite | end-time | duration seconds} ՟བ˖

Router (config-keychain)# accept-lifetime 13:30:00 Jan 25 2013 duration 7200

ᣛᅮᆚ䩹䫒Ёⱘᆚ䩹ৃҹ㹿᳝ᬜ᥹ᬊⱘᯊ䯈ǄੑҸⱘ৘ খ᭄੠䗝乍䇈ᯢབϟ˖

start-time˖ᣛᅮᆚ䩹ৃҹ㹿᳝ᬜ᥹ᬊⱘ䍋ྟᯊ䯈ˈ Ḑᓣৃҹᰃབϟϸ⾡˖

hh:mm:ss Month date year hh:mm:ss date Month year

infinite˖໮䗝ϔ䗝乍ˈᣛᅮᆚⷕৃҹ㹿ϡফ䰤ࠊഄ 㹿᥹ᬊ end-time˖໮䗝ϔখ᭄ˈᣛᅮᆚ䩹ৃҹ㹿᳝ᬜ᥹ᬊⱘ 㒜ℶᯊ䯈 duration seconds˖໮䗝ϔখ᭄ˈᣛᅮᆚ䩹ৃҹ㹿᳝ ᬜ᥹ᬊⱘᣕ㓁ᯊ䭓ᑺ˄ҹ⾦Ўऩԡ˅ˈপؐ㣗ೈЎ 1~2147483646⾦

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ 㓁㸼 ℹ偸 ੑҸ 䇈ᯢ 10

send-lifetime start-time {infinite | end-time | duration seconds} ՟བ˖

Router (config-keychain)#send-lifetime 15:00:00 Jan 25 2013 duration 3600 ᣛᅮ䩹䫒Ёⱘᆚ䩹ৃҹ㹿᳝ᬜথ䗕ⱘᯊ䯈ˈ৘খ᭄੠䗝乍䇈ᯢখ㾕Ϟℹᇍᑨҟ㒡ˈϡৠⱘ䖭䞠ᰃᣛᅮᆚ䩹ৃҹ ᳝ᬜথ䗕ⱘᯊ䯈 11 exit ՟བ˖ Router(config-keychain-key)# exit 䗔ߎᆚ䩹䫒ᆚ䩹䜡㕂῵ᓣˈ䖨ಲᆚ䩹䫒䜡㕂῵ᓣ 12 exit ՟བ˖ Router(config-keychain)# exit 䗔ߎᆚ䩹䫒䜡㕂῵ᓣˈ䖨ಲܼሔ䜡㕂῵ᓣ 13

interface type number ՟བ˖

Router(config)# interface Ethernet 3/0

˄ৃ䗝˅ᣛᅮ㽕䜡㕂 RIP 䏃⬅᳈ᮄ䅸䆕ⱘ᥹ষ˄ৃҹᰃ ᄤ᥹ষ˅ˈ䖯ܹ᥹ষ䜡㕂῵ᓣǄ䆹᥹ষ˄៪ᄤ᥹ষ˅㽕џ ܜ䜡㕂ད IP ഄഔㄝ෎ᴀখ᭄

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ip rip send version [1] [2] ՟བ˖

Router(config-if)# ip rip send version 1

˄ৃ䗝˅䜡㕂Ϟ䗄᥹ষৃҹ᥹ᬊⱘ䏃⬅᳈ᮄࣙⱘ RIP ⠜ ᴀǄᅗᇚ㽚Ⲫ䗮䖛 version {1 | 2}ܼሔ䜡㕂῵ᓣੑҸ᠔䆒㕂ⱘ RIP ⠜ᴀ

15

ip rip receive version [1] [2] ՟བ˖

Router(config-if)# ip rip receive version 1

˄ৃ䗝˅䜡㕂Ϟ䗄Ͼ᥹ষৃҹথ䗕ⱘ䏃⬅ࣙⱘ RIP ⠜ᴀ ࣙǄᅗᇚ㽚Ⲫ䗮䖛 version {1 | 2}ܼሔ䜡㕂῵ᓣੑҸ᠔䆒㕂ⱘ RIP ⠜ᴀ

16

ip rip authentication key-chain name-of-chain ՟བ˖

Router(config-if)# ip rip authentication key-chain chainname

˄ৃ䗝˅ᔧ᥹ষਃ⫼ RIPv2 ᯊਃ⫼ RIP 䏃⬅᳈ᮄ䅸䆕ˈ ᑊ䗮䖛 name-of-chain খ᭄ᣛᅮՓ⫼㄀ 6 ℹ᠔߯ᓎⱘ䅸䆕 ᆚ䩹䫒

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ip rip authentication mode {text | md5} ՟བ˖

Router(config-if)# ip rip authentication mode md5

˄ৃ䗝˅ᔧ᥹ষਃ⫼ RIPv2 ᯊᣛᅮՓ⫼ text˄㒃᭛ᴀ䅸䆕ˈг⿄ᯢ᭛䅸䆕˅៪㗙 MD5 䅸䆕ᮍᓣ 18 end ՟བ˖ Router(config-if)# end 䗔ߎ᥹ষ䜡㕂῵ᓣˈ䖨ಲࠄ⡍ᴗ῵ᓣ ҹϟ⼎՟ᰃ䜡㕂ϔϾৡЎ keychain1 ⱘᆚ䩹䫒Ǆᆚ䩹ᄫヺІⱘ᳝ᬜ᥹ᬊᯊ䯈㣗ೈᰃ 1:30 p.m~ 3:30 p.mˈ᳝ᬜ㹿থ䗕ⱘᯊ䯈㣗ೈЎ 2:00 p.m~3:00 p.m˗ᆚ䩹ᄫヺІⱘ᳝ᬜ᥹ᬊᯊ䯈㣗ೈᰃ 2:30 p.m~ 4:30 p.mˈ᳝ᬜ㹿থ䗕ⱘᯊ䯈㣗ೈЎ 3:00 p.m~4:00 p.mǄ Router(config)#router rip Router(config-router)# network 172.19.0.0 !---_{ᅷਞ᠔䖲᥹ⱘ㔥㒰 172.19.0.0}

Router(config-router)#version 2 !---ܼሔᣛᅮਃ⫼ RIPv2 ⠜ᴀˈгህᰃৃҹৠᯊ᥹ᬊ੠থ䗕 v2 ⠜ᴀⱘ RIP 䏃⬅᳈ᮄࣙ Router(config-router)#exit

Router(config)#key chain keychain1 !---ᅮНϔϾৡЎ keychain1 ⱘᆚ䩹䫒 Router(config-keychain)#key 1 !---_{߯ᓎϔϾ ID োЎ 1 ⱘᆚ䩹}

Router(config-keychain)#key-string string1 !---ᅮН 1 োᆚ䩹ⱘᆚ䩹ᄫヺІ

Router(config-keychain -key)#accept-lifetime 13:30:00 Jan 25 2013 duration 7200 !---_{ᣛᅮࣙ৿ 1 োᆚ䩹ⱘ䏃⬅᳈ᮄࣙৃҹ᳝ᬜ᥹ᬊⱘ} ᯊ䯈

Router(config-keychain -key)#send-lifetime 14:00:00 Jan 25 2013 duration 3600 !---_{ᣛᅮࣙ৿ 1 োᆚ䩹ⱘ䏃⬅᳈ᮄࣙৃҹ᳝ᬜথ䗕ⱘ} ᯊ䯈

Router(config-keychain -key)#exit Router(config-keychain)#key 2

Router(config-keychain -key)#key-string string2

Router(config-keychain -key)#accept-lifetime 14:30:00 Jan 25 2013 duration 7200 Router(config-keychain -key)# send-lifetime 15:00:00 Jan 25 2013 duration 3600 Router(config-keychain -key)#exit

Router(config-keychain)# exit

Router(config)#interface ethernet 0 !---䖯ܹ䖲᥹ 172.19.0.0 㔥㒰ⱘ䏃⬅఼᥹ষ

Router(config-if)#ip rip authentication mode md5 !---_{ᣛᅮҹϞ᥹ষ䞛⫼ MD5 RIP 䅸䆕῵ᓣ}

Router(config-if)# ip rip authentication key-chain keychain1 !---ᣛᅮҹϞ᥹ষ RIP 䏃⬅᳈ᮄ䅸䆕᠔⫼ⱘᆚ䩹䫒Ў keychain1

8.2.3 ਃ⫼៪㗙⽕ℶ∈ᑇߚࡆ

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ ᑓ᪁㉏ൟⱘ䏃⬅఼᥹ষϞ RIP ⱘ∈ᑇߚࡆࡳ㛑Ǆ 䗮ᐌˈ೼䖲᥹ࠄᑓ᪁㉏ൟ IP 㔥㒰ᚙᔶЁˈՓ⫼䎱⾏ⶶ䞣䏃⬅ण䆂˄ࣙᣀ RIP ੠ IGRP˅ⱘ䏃⬅ ఼ӮՓ⫼∈ᑇߚࡆ˄Split horizon˅ᴎࠊᴹޣᇥৃ㛑ߎ⦄ⱘ䏃⬅⦃䏃Ǆ∈ᑇߚࡆࡳ㛑ৃҹ䰏ℶҢϔϾ ᥹ষϞ᥹ᬊ៪ᄺдࠄⱘ䏃⬅ֵᙃݡҢ䆹᥹ষϞ㹿䗮ਞߎএ˄ᅗᇚᡞ䖭ѯ䏃⬅㸼乍Ң RIP ⱘᅮᳳ䏃⬅ ᳈ᮄࣙ⏙䰸˅ˈЏ㽕⫼Ѣᑓ᪁㉏ൟⱘ㔥㒰˄བҹ໾ሔඳ㔥˅ЁǄ݊ᅲৃҹҢ݊ৡ⿄ⱘĀ∈ᑇߚࡆā ࡴҹ⧚㾷ˈ∈ᑇߚࡆህᰃ㽕∖䏃⬅⍜ᙃϔⳈ৥ࠡথ䗕ˈϡ㽕ಲ༈Ǆ䖭ḋ㽕∖থ䗕ⱘ䏃⬅⍜ᙃЁⳂⱘ ഄഔህϡ㛑ᰃ䏃⬅⑤᥹ষǄ 1ˊ∈ᑇߚࡆॳ⧚ࠪᵤ ೼ 8.1.4 㡖ㅔऩҟ㒡њ RIP ⱘ∈ᑇߚࡆᡔᴃˈᴀ㡖ݡВϔϾ⼎՟䖯㸠݋ԧⱘߚᵤǄ⼎՟ⱘ㔥㒰㒧ᵘབ೒ 8-15 ᠔⼎Ǆ ೒ 8-15 ∈ᑇߚࡆ⼎՟ᢧᠥ㒧ᵘ བᵰ Router B ⱘ S1 ᥹ষҢ Router C ⱘ S0 ᥹ষϞ᥹ᬊࠄњϔϾࠄ䖒 10.20.40.0 㔥㒰ⱘ䏃⬅䗮ਞ ֵᙃ˄؛䆒Ў䏃⬅ķ˅Ǆॳ䏃⬅ⱘ䏃ᕘЎ˖Router C ⱘ S0 ᥹ষ→Router C ⱘ E0 ᥹ষ→Ⳃⱘ㔥㒰ህ ᰃ 10.20.40.0ˈᑺ䞣Ў 0ˈ಴Ў 10.20.40.0 㔥㒰ᰃⳈ᥹䖲᥹೼ Router C ϞⱘǄRouter B ᄺдࠄৢӮ೼ 㞾Ꮕⱘ䏃⬅㸼Ё߯ᓎϔᴵᮄ䏃⬅˄؛䆒Ў䏃⬅ĸ˅Ǆ䆹䏃⬅ⱘ䏃ᕘЎ˖Router B ⱘ S1 ᥹ষ→Router Cⱘ S0 ᥹ষ→Ⳃⱘ㔥㒰 10.20.40.0ˈᑺ䞣Ў 1Ǆ བᵰℸᯊܕ䆌 Router B ݡ䗮䖛݊ S1 ᥹ষ˄ॳᴹᄺдࠄ䖒㔥㒰 10.20.40.0 ⱘķ䏃⬅ⱘ᥹ষ˅৥ Router Cⱘ S0 ᥹ষথ䗕ࣙ৿䖭Ͼ䏃⬅ⱘ᳈ᮄ䗮ਞˈ߭ Router C ህজӮ߯ᓎϔᴵᮄ䏃⬅˄؛䆒Ў䏃 ⬅Ĺ˅Ǆ䆹䏃⬅ⱘ䏃ᕘЎ˖Router C ⱘ S0 ᥹ষ→Router B ⱘ S1 ᥹ষ→Ⳃⱘ㔥㒰 10.20.40.0ˈᑺ䞣Ў 2ǄৠḋˈRouter C জӮݡ䗮䖛݊ S0 ᥹ষ৥ Router B 䗮ਞ݊ᮄ߯ᓎⱘ䏃⬅ˈ㒧ᵰϔⳈ䖭Мᕾ⦃ϟ এˈⳈࠄ᠔߯ᓎⱘ䏃⬅ᑺ䞣໻Ѣ 15˄↣⃵ᮄᓎⱘ RIP 䏃⬅ᑺ䞣䛑ᰃ೼ᄺдࠄⱘ⑤ RIP 䏃⬅ᑺ䞣෎ ⸔Ϟࡴ 1˅ˈ㹿ᅷਞЎϡৃ䖒ᠡ㒧ᴳǄ 䖭⾡⦄䈵ᰒ✊ϡᰃ៥Ӏ᠔Ꮰᳯথ⫳ⱘˈ಴Ўϔ߭೼ৠϔৄ䏃⬅఼ϞӮЎࠄ䖒ⳌৠⳂⱘ㔥㒰ᓎゟ䆌໮ᴵᑺ䞣ϡৠⱘ RIP 䏃⬅ˈᵕ໻ഄ๲ࡴњ䏃⬅㸼ⱘᆍ䞣ˈՓᕫ䏃⬅᳈໡ᴖ˗ݡ߭䖬ৃ㛑ᔶ៤䏃⬅ ⦃䏃ˈ䏃⬅ᬜ⥛໻໻䰡Ԣˈ⫮㟇ৃҹՓ᭄᥂ࣙ᮴⊩ࠄ䖒ⳳℷⱘⳂⱘഄǄབ Router C Ёབᵰ䞛⫼њĹ ো䏃⬅ˈ߭䆓䯂㔥㒰 10.20.40.0 ⱘ᭄᥂ࣙᇚϡӮⳈ᥹Ңᴀഄ䏃⬅఼Ϟࠄ䖒ˈ㗠ᰃݡ䖖ಲࠄ Router B ⱘ S1 ᥹ষˈ✊ৢݡ䖯ܹ Router C ⱘ S0 ᥹ষˈ᳔ৢᠡࠄⳂⱘ㔥㒰 10.20.40.0Ǆ Ўњ㾷އ䖭ѯ䯂乬ˈህ᥼ߎњĀ∈ᑇߚࡆāᴎࠊˈ⽕ℶҢᄺдᶤᴵ RIP 䏃⬅ⱘ᥹ষϞݡ䗮ਞ 䆹ᴵ䏃⬅ⱘ᳈ᮄˈ䖭ḋህৃҹ䙓ܡ೼ৠϔ䏃⬅఼Ϟ߯ᓎࠄ䖒ৠϔ㔥㒰ⱘ໮ᴵ RIP 䏃⬅ǄԚᰃᇍѢ 䴲ᑓ᪁㉏ൟ㔥㒰ˈབᏻЁ㒻੠ SMDS˄Ѹᤶ໮ܚԡ᭄ᄫ㋏㒳˅ˈ಴Ўߎ⦄䏃⬅⦃䏃ⱘᴎӮⳌᔧ ᇣˈ᠔ҹԴৃҹ⽕ℶ RIP ⱘ∈ᑇߚࡆࡳ㛑Ǆ䰸њ䞛⫼њᏻЁ㒻៪㗙 SMDS ᇕ㺙ⱘ݊Ҫ᠔᳝᥹ষˈ 咬䅸 ᰃ ਃ ⫼ њ ∈ ᑇ ߚ ࡆ ⱘ Ǆ བ ᵰ ೼ ᥹ ষ 䜡㕂 Ё ࣙ ᣀ њ encapsulation frame-relay ៪ 㗙 encapsulation smdsੑҸˈ߭咬䅸ᰃ⽕⫼∈ᑇߚࡆࡳ㛑ⱘǄՓ⫼ӏԩ X.25 ण䆂ᇕ㺙ⱘ᥹ষ咬䅸䛑 ϡ⽕⫼∈ᑇߚࡆࡳ㛑ⱘǄ Ǐ⊼ᛣǐఢڴၽྡྷّࠄࣇଅᄢॴ؃ᅙ IP ԙᄖēωய୳ဈॴഃ଼דىٟટē႕ඹڶ؃ᅙ IP ԙᄖ

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ ࠩ໻াဎٗ໭ನྙࢶટߜϢݖюٟē࿙นഃ଼דىಾݮဟࠄೌাဎԅၗࠄࣇԅdখෳēRIP াဎٗ ໭ಾݮဟਤّγᅹฉ৮ࠩ໻ԅďྙ࡜ಾݮဟჼّฉ৮ࠩ໻ٗ໭ԅĐē֗Ϣಾݮဟᆐฉࠩ໻ԅē҂ׄ દࠬᄘॴഃ଼דىٟટdྙ࡜ಾഊē୳ဈഃ଼דىٟટ܊ē࡜ࢶྻݮဟᆐฉࠩ໻াဎٗ໭ॴd ၽပ໔ெࣣຏရ࿫ࠬᄘഃ଼דىݯᄥēᆫШߎԅྡྷᄵܬࡂಾᄀᄯޟԅ Hub-Spoke ࠒٲԅฉ৮d

Hubাဎ୶ࠄೌӾ Spoke ժԅাဎٗ໭ēΡ༖ၼҶუّࠄࣇ֟ѻ௠ēྻάୣ൐ Spoke াဎ୶ࣿࠄೌ

უ໔াဎdఢڴ୳ဈॴഃ଼דىēҶྡྷّ Spoke ҎԞӾ Hub ԅাဎߜํ֥ӾӒୣ൐ Spoke াဎ ୶ēӽᄡ Spoke াဎ୶ᄍ޷ອܚਠပাဎd 2ˊRIP ∈ᑇߚࡆⱘਃ⫼Ϣ⽕⫼ RIP ∈ᑇߚࡆⱘࡳ㛑ਃ⫼Ϣ⽕⫼ᰃ෎Ѣ᥹ষ䜡㕂ⱘˈ᠔ҹ䳔㽕೼ᇍᑨⱘ RIP 䏃⬅఼᥹ষ䜡㕂῵ ᓣϟ䖯㸠Ǆਃ⫼ RIP ∈ᑇߚࡆᡔᴃⱘੑҸᕜㅔऩˈህᰃ ip split-horizon ੑҸˈབᵰ㽕⽕ℶᶤ᥹ষⱘ ∈ᑇߚࡆᡔᴃˈ߭ৃ⫼ no ip split-horizon ੑҸǄ 䰸њᏻЁ㒻ˈ៪㗙 X.25ǃSMDS ᇕ㺙ⱘ᥹ষ໪ˈ݊Ҫ᠔᳝᥹ষ咬䅸䛑ᰃਃ⫼∈ᑇߚࡆࡳ 㛑ⱘǄ ҹϟ⼎՟ᰒ⼎њབԩ೼䞛⫼ x.25 ण䆂ᇕ㺙ⱘІ㸠᥹ষϞ⽕ℶ∈ᑇߚࡆࡳ㛑Ǆ Router(config)#interface serial 0 Router(config-if)#encapsulation x25 Router(config-if)#no ip split-horizon

8.2.4 RIP 䏃⬅∛ᘏ䜡㕂

Ā䏃⬅∛ᘏā˄Route Summarization˅ህᰃᡞ໮Ͼᇣ㔥㒰៪ᄤ㔥ⱘ䏃⬅∛ᘏ៤ϔϾ໻㔥㒰៪໻ ᄤ㔥ⱘ䏃⬅ˈ৘⾡ࡼᗕ䏃⬅ण䆂䛑᳝ℸࡳ㛑ˈϡҙᴀゴҟ㒡ⱘ RIPǄ䗮䖛䏃⬅∛ᘏࡳ㛑ህৃҹᡞԡ Ѣৠϔᷛޚ㔥㒰ϟⱘ໮Ͼᄤ㔥䏃⬅∛ᘏ៤ϔᴵ∛ᘏ䏃⬅ˈৃҹᦤ催 RIP 䏃⬅೼໻ൟ㔥㒰ЁⱘৃԌ㓽 ᗻ੠䏃⬅ᬜ⥛Ǆ᳝њ䏃⬅∛ᘏࡳ㛑ৢˈ೼ RIP 䏃⬅㸼Ё᮴䳔Ўᄤ䏃⬅˄гህᰃЎϔϾ∛ᘏഄഔݙ䚼 ⱘӏԩऩϔᄤ㔥᠔߯ᓎⱘ䏃⬅˅䜡㕂ϧ䮼ⱘ䏃⬅乍ˈޣᇣ䏃⬅㸼ⱘ໻ᇣˈՓ䏃⬅఼ৃҹ໘⧚᳈໮ⱘ 䏃⬅Ǆ Cisco IOS ㋏㒳咬䅸ਃ⫼㞾ࡼ䏃⬅∛ᘏࡳ㛑ˈҙᔧ䳔㽕݇䯁ܼሔ㞾ࡼ䏃⬅∛ᘏࡳ㛑ˈ៪㗙䳔㽕 ෎䏃⬅఼᥹ষ䖯㸠䏃⬅∛ᘏᠡ䳔㽕䖯㸠ᴀ㡖ⱘ䜡㕂ӏࡵǄ 1ˊ䏃⬅∛ᘏㅔҟ RIP ᳝ϸ⾡䏃⬅∛ᘏᮍᓣ˖ϔᰃܼሔ㞾ࡼ∛ᘏˈѠᰃ෎Ѣ᥹ষⱘ᠟ࡼ∛ᘏǄRIPv1 ҙᬃᣕ㞾ࡼ ∛ᘏᮍᓣˈRIPv2 ৠᯊᬃᣕ㞾ࡼ∛ᘏ੠᠟ࡼ∛ᘏ䖭ϸ⾡ᮍᓣǄ ∛ᘏ䏃⬅↨໮ϾϾ߿䗮ਞ IP 䏃⬅݋᳝᳈催ⱘᬜ⥛ˈЏ㽕ॳ಴བϟ˖ķ೼ RIP 䏃⬅᭄᥂ᑧЁˈ ∛ᘏ䏃⬅ᇚ㹿Ӭܜ໘⧚˗ĸӏԩࣙᣀ೼ϔϾ∛ᘏ䏃⬅Ёⱘᄤ䏃⬅೼䏃⬅᭄᥂ᑧᄬᶹᡒЁᰃⳈ᥹䏇䖛 ⱘˈޣᇥњ᠔䳔ⱘ໘⧚ᯊ䯈ǄԚབᵰৠᯊ೼ᇍᑨⱘ RIP 䏃⬅఼᥹ষϞਃ⫼њ∈ᑇߚࡆࡳ㛑ˈ߭ᄤ 㔥䏃⬅੠∛ᘏ䏃⬅䛑ϡӮ೼䆹᥹ষϞ㹿䗮ਞǄ ϟ䴶ߚ߿ҟ㒡䖭ϸ⾡ RIP 䏃⬅∛ᘏᮍᓣ˖ 㞾ࡼ∛ᘏ

RIPv1 ੠ RIPv2 咬䅸䛑ਃ⫼㞾ࡼ䏃⬅∛ᘏ˄auto-summary˅ࡳ㛑ˈϨ RIPv1 াᬃᣕ㞾ࡼ∛ᘏࡳ

㛑Ǆ㞾ࡼ∛ᘏᰃᡞӮ∛ᘏ৘ᄤ㔥䏃⬅ⱘᄤ㔥ࠡ㓔ࠄϔϾᇍᑨ㉏ൟⱘᷛޚ㔥㒰䖍⬠ˈे㞾ࡼ∛ᘏ䏃⬅ ⱘᄤ㔥᥽ⷕᖙ乏ᰃ 255.0.0.0ǃ255.255.0.0ǃ255.255.255.0 П㉏ⱘǄ㞾ࡼ∛ᘏᘏᰃ䖯㸠᳔໻䰤ᑺⱘ∛ ᘏˈгህᰃᡞᇍᑨᄤ㔥䏃⬅Ⳉ᥹∛ᘏࠄᇍᑨⱘᷛޚ㔥㒰ˈгህᰃࠄњৃҹ∛ᘏⱘ䖍⬠Ǆ

བ 172.16.1.0/24ǃ172.16.2.0/24ǃ172.16.3.0/24 ੠ 172.16.4.0/24 䖭ಯϾᄤ㔥䏃⬅ৃҹ∛ᘏ៤

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ 192.168.192/26䖭ಯϾᄤ㔥䏃⬅ህৃҹ∛ᘏ៤ 192.168.1.0/24 䖭ḋϔϾᷛޚⱘ C ㉏㔥㒰䏃⬅Ǆ ᠟ࡼ∛ᘏ ᠟ࡼ∛ᘏҙ RIPv2 ᬃᣕˈ಴Ўᅗᬃᣕ CIDR˄᮴㉏߿ඳ䯈䏃⬅˅Ǆ᠟ࡼ∛ᘏᰃ෎Ѣ䏃⬅఼᥹ষ 䜡㕂ⱘˈৃҹᡞᇍᑨ᥹ষϞ᥹ᬊࠄⱘ໮Ͼᄤ㔥䏃⬅㸼乍∛ᘏ៤ϔϾ໻ⱘᷛޚ㔥㒰៪㗙໻ⱘᄤ㔥䏃 ⬅ǄᅗϢ㞾ࡼ∛ᘏ᳔ᯢᰒⱘऎ߿ህᰃˈᅗⱘ∛ᘏৢⱘ䏃⬅ഄഔࠡ㓔ৃҹϡᰃᷛޚ㔥㒰ⱘˈгህᰃ∛ ᘏ䏃⬅ⱘᄤ㔥᥽ⷕϡϔᅮ䴲㽕ᰃ 255.0.0.0ǃ255.255.0.0ǃ255.255.255.0Ǆ Ǐ⊼ᛣǐუऺပྡྷّׄШᄷྑԅԙֺྑᅟ࿉ġၽাဎ୶௦ࡥଅᄢԅᆑՎݘᆙٟટēਤّᆐฉᄚ ટݘᆙӾ൑ൎճ࿫फιԅγᅹฉ৮౨ēఢ A फᆐฉ IP ԙᄖē႕ݘᆙ܊ԅݘᆙԙᄖལ৲ᄚટಾ 255.0.0.0ĢB फᆐฉ IP ԙᄖē႕ݘᆙ܊ԅݘᆙԙᄖལ৲ᄚટಾ 255.255.0.0ĢC फᆐฉ IP ԙᄖē႕

ݘᆙ܊ԅݘᆙԙᄖལ৲ᄚટಾ 255.255.255.0dӬಾఢڴಾၽࠄࣇ౨ඹڶ ip summary-address rip ip-address ip-network-mask ੡গଅᄢԅাဎݘᆙē႕ݘᆙԙᄖལ৲ᄚྑಾγᅹฉ৮ԅ՛ࢶྻē֗Ϣྡྷ Շಾᆐฉাဎ IP ԙᄖൎճ࿫फιԅγᅹฉ৮dఢڴಾ A फᆐฉ IP ԙᄖē႕ݘᆙ܊ԅݘᆙԙᄖལ৲ ࢶྻಾ A फԙᄖལ৲ēྙࢶྻಾ B फԙᄖལ৲ēܮࢶྻಾ C फԙᄖལ৲Ģఢڴಾ B फᆐฉ IP ԙ ᄖē႕ݘᆙ܊ԅݘᆙԙᄖལ৲ࢶྻಾ B फԙᄖལ৲ēྙࢶྻಾ C फԙᄖལ৲Ģఢڴಾ C फᆐฉ IP ԙᄖē႕ݘᆙ܊ԅݘᆙԙᄖལ৲ᄚટಾ C फԙᄖལ৲d

ᔧ RIP ण䆂⹂ᅮ೼ RIP 䏃⬅᭄᥂ᑧЁ䳔㽕ϔϾ∛ᘏഄഔᯊˈህӮ೼ RIP 䏃⬅᭄᥂ᑧЁ߯ᓎϔϾ ∛ᘏᴵⳂǄা㽕೼∛ᘏഄഔЁ᳝ᄤ䏃⬅ˈ߭䖭Ͼ∛ᘏഄഔህӮϔⳈֱ⬭೼䏃⬅᭄᥂ᑧЁǄᔧ᳔ৢϔ Ͼᄤ䏃⬅Ң᭄᥂ᑧЁߴ䰸ᯊˈ߭䖭Ͼ∛ᘏᴵⳂгᇚҢ᭄᥂ᑧЁߴ䰸Ǆ䖭⾡໘⧚᭄᥂ᑧᴵⳂⱘᮍ⊩ৃ ҹޣᇥ೼᭄᥂ᑧЁⱘᴵⳂ᭄䞣ˈ಴Ў↣Ͼᄤ䏃⬅ϡӮ೼ᅲ䰙Փ⫼ⱘ䏃㸼ᴵⳂЁ߫ߎˈ㗠ᔧϡݡ᳝Ⳍ ݇ⱘᄤ䏃⬅ᄬ೼ᯊˈ䖭Ͼ∛ᘏⱘ䏃⬅ᴵⳂгᇚߴ䰸Ǆ RIPv2 䏃⬅∛ᘏ䳔㽕ҷ㸼᳔Շ䏃⬅ⱘ᳔Ԣᑺ䞣ؐˈ៪㗙Ⳉ᥹䞛⫼∛ᘏ䏃⬅᠔ҷ㸼ⱘ᠔᳝ᄤ䏃⬅ Ёⱘ᳔ᇣⱘᑺ䞣ؐǄ∛ᘏ䏃⬅ᑺ䞣ؐ೼߱ྟ࣪ᯊ៪㗙䏃⬅᳈ᮄ䗮ਞᯊᇍᣛᅮ䏃⬅䖯㸠ᑺ䞣㓪䕥ᯊ䅵 ㅫⱘˈϡᰃ೼∛ᘏ䏃⬅䗮ਞᯊ䅵ㅫⱘǄ 2ˊRIP 䏃⬅∛ᘏ䜡㕂ℹ偸䏃⬅∛ᘏࡳ㛑ৃҹ෎Ѣܼሔਃࡼ㞾ࡼ∛ᘏࡳ㛑ˈ䖬ৃҹ෎Ѣ䏃⬅఼᥹ষਃ⫼㞾ࡼ∛ᘏࡳ㛑ˈᑊ ᣛᅮ㽕∛ᘏⱘᄤ㔥䏃⬅ǄԚ᮴䆎ᰃܼሔˈ䖬ᰃ᥹ষˈᅗӀ咬䅸䛑ᰃਃ⫼њ㞾ࡼ∛ᘏࡳ㛑ⱘǄབᵰৠ ᯊ䜡㕂ˈ߭ᇍѢ᥹ষᴹ䇈ˈ᳔㒜ⱘ䏃⬅∛ᘏࡳ㛑ᰃՓ⫼೼ᇍᑨ᥹ষϞⱘ∛ᘏ䜡㕂ˈ৺߭Ⳉ᥹䞛⫼ܼ ሔ䜡㕂Ǆ݋ԧⱘ䜡㕂ᮍ⊩བ㸼 8-3 ᠔⼎Ǆ 㸼 8-3 RIP 䏃⬅∛ᘏ䜡㕂ℹ偸 ℹ偸 ੑҸ 䇈ᯢ 1 enable ՟བ˖ Router> enable 䖯ܹ⡍ᴗ῵ᓣǄབᵰ䜡㕂њ⡍ᴗ῵ᓣᆚⷕˈ߭㽕ᣝᦤ⼎䕧ܹℷ⹂ⱘ⡍ ᴗ῵ᓣᆚⷕᠡ㛑䖯ܹ 2 configure terminal ՟བ˖

3

ᣛᅮ㽕ਃ⫼䏃⬅∛ᘏⱘ᥹ষˈ䖯ܹ᥹ষ䜡㕂῵ᓣ

4

ip summary-address rip ip-address ip-network-mask ՟བ˖

Router(config-if)# ip summary-address rip 10.2.0.0 255.255.0.0 ˄ৃ䗝˅೼ҹϞ᥹ষϟਃ⫼᠟ࡼ∛ᘏࡳ㛑ˈᑊᣛᅮ᠟ࡼ∛ᘏ㾘߭ǄੑҸ Ёⱘখ᭄䇈ᯢབϟ˖ ip-address˖㹿∛ᘏⱘ∛ᘏ䏃⬅ഄഔ ip-network-mask˖∛ᘏ䏃⬅ᄤ㔥᥽ⷕǄ䖭Ͼᄤ㔥᥽ⷕᖙ乏໻Ѣ ៪ㄝѢᇍᑨᷛޚ㔥㒰ⱘ᥽ⷕ˄гህᰃࠡ㓔䭓ᑺϔᅮ㽕໻Ѣ៪ㄝ Ѣᇍᑨⱘᷛޚ㔥㒰ⱘࠡ㓔䭓ᑺ˅ˈ㗠ϡ㛑ᰃ䍙㔥᥽ⷕ

ৃ⫼ no ip summary-address rip ip-address ip-network-mask ੑҸপ⍜ᇍ ᇍᑨᄤ㔥䏃⬅ⱘ∛ᘏ

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ 㓁㸼 ℹ偸 ੑҸ 䇈ᯢ 5 exit ՟བ˖ Router(config-if)# exit 䗔ߎ᥹ষ䜡㕂῵ᓣ 6 router rip ՟བ˖

Router(config)# router rip

ਃ⫼ RIP 䏃⬅ण䆂ˈ䖯ܹ䏃⬅఼䜡㕂 7 no auto-summary ՟བ˖ Router(config-router)# no auto-summary ˄ৃ䗝˅⽕ℶ㞾ࡼ∛ᘏˈ咬䅸ᰃᓔਃⱘǄ⽕ℶৢৃ⫼ auto-summary ੑ Ҹᘶ໡ 8 end ՟བ˖ Router(config-router)# end 䗔ߎ䏃⬅఼䜡㕂῵ᓣˈ䖨ಲ⡍ᴗ῵ᓣ

ৃՓ⫼ show ip protocols ⡍ᴗ῵ᓣੑҸᴹᶹⳟ᥹ষϞાϾ䏃⬅㹿∛ᘏњˈгৃҹ䗮䖛 show ip

rip database⡍ᴗ῵ᓣੑҸ೼ RIP 䏃⬅᭄᥂ᑧЁẔ⌟∛ᘏഄഔǄᔧ⫼Ѣ∛ᘏ䏃⬅ⱘ᳔ৢϔϾᄤ䏃⬅

༅ᬜৢˈ䖭Ͼ∛ᘏ䏃⬅гᇚҢ䏃⬅㸼Ёߴ䰸Ǆ ҹϟ⼎՟Џ㔥㒰Ў 10.0.0.0˄Ң network ੑҸᅷਞৃҹᕫߎ˅ˈབᵰ䞛⫼ҹϟ䜡㕂ˈ೼ Ethernet1᥹ষϞ䜡㕂ⱘ∛ᘏ䏃⬅ഄഔ 10.2.0.0/16 ᇚ㽚Ⲫ䖭Ͼ 10.0.0.0 㞾ࡼ∛ᘏഄഔ˄⊼ᛣˈܼሔⱘ 㞾ࡼ∛ᘏࡳ㛑ᰃ咬䅸ᓔਃⱘˈ᠔ҹϔ㠀ϡ⫼঺໪䗮䖛 auto-summary 䏃⬅఼䜡㕂῵ᓣੑҸᓔਃ˅ˈ ᠔ҹ෎Ѣ᥹ষⱘ∛ᘏഄഔ 10.2.0.0/16 ᇚ⬅ Ethernet1 ᥹ষ㹿䗮ਞߎএˈ㗠 10.0.0.0/8 㞾ࡼ∛ᘏഄഔᇚ ϡ㹿䗮ਞǄԚᰃˈབᵰਃ⫼њ∈ᑇߚࡆˈ߭᮴䆎ᰃ㞾ࡼ∛ᘏഄഔˈ䖬ᰃҹ ip summary-address rip ੑҸ䜡㕂ⱘ᥹ষ∛ᘏഄഄഔ䛑ᇚϡӮ㹿䗮ਞǄ Router(config)#interface Ethernet1 Router(config-if)# ip address 10.1.1.1 255.255.255.0

Router(config-if)# ip summary-address rip 10.2.0.0 255.255.0 Router(config-if)# exit Router(config)#router rip Router(config-router)# network 10.0.0.0 3ˊRIP 䏃⬅∛ᘏ䜡㕂⊼ᛣџ乍 ೼䜡㕂 RIP 䏃⬅∛ᘏᯊˈ㽕⊼ᛣ޴Ͼ䞡㽕ᮍ䴶ˈ৺᳔߭㒜ৃ㛑ᑊϡ㛑䖒ࠄ乘ᳳⳂⱘǄ ϡ∛ᘏ≵᳝䖲᥹ⱘᄤ㔥 བᵰ೼∛ᘏⱘᄤ㔥Ёˈ᳝≵᳝䖲᥹ⱘᄤ㔥ˈ߭ᓎ䆂೼䏃⬅㞾ࡼ∛ᘏЁϡ㽕䗮ਞ䖭Ͼᄤ㔥Ǆᔧ⽕ ℶњ䏃⬅∛ᘏࡳ㛑ˈIOS 䕃ӊᇚ䗮䖛᳝㉏߿㔥㒰䖍⬠থ䗕ᄤ㔥੠Џᴎ䏃⬅ֵᙃǄ ∛ᘏ䏃⬅ⱘഄഔࠡ㓔া㛑໻Ѣ៪ㄝѢᇍᑨᷛޚ㔥㒰ഄഔࠡ㓔䖭ϔ⚍㽕⡍߿⊼ᛣˈгᰃҙ೼ RIP ⱘ∛ᘏ䏃⬅Ё᠔⡍᳝ⱘǄ䙷ህᰃ RIP ⱘ᠟ࡼ∛ᘏ䏃⬅˄㞾ࡼ ∛ᘏ䏃⬅ⱘഄഔࠡ㓔㞾ࡼㄝѢᇍᑨᷛޚ㔥㒰ⱘഄഔࠡ㓔˅ⱘഄഔࠡ㓔া㛑໻Ѣ៪ㄝѢᇍᑨᷛޚ㔥㒰 ⱘഄഔࠡ㓔ˈгህᰃϡ㛑∛ᘏ៤䍙㔥˄Supernet˅Ǆ䗮֫ഄ䆆䇈ᰃˈA ㉏ᷛޚ㔥㒰ߦߚⱘᄤ㔥䏃⬅᳔ ໮া㛑∛ᘏ៤ A ㉏ᷛޚ㔥㒰䏃⬅ˈ㗠ϡ㛑∛ᘏ៤ B ㉏ˈ៪㗙 A ㉏ᷛޚ㔥㒰៪ᄤ㔥䏃⬅˗B ㉏ᷛޚ 㔥㒰ߦߚⱘᄤ㔥᳔໮া㛑∛ᘏ៤ B ㉏㔥㒰䏃⬅ˈ㗠ϡ㛑∛ᘏ៤ A ㉏ᷛޚ㔥㒰៪ᄤ㔥䏃⬅˗A ㉏㔥㒰ߦߚⱘᄤ㔥᳔໮া㛑∛ᘏ៤ A ㉏㔥㒰䏃⬅Ǆ བ Դ ᛇ 㽕 ᡞ 192.168.0.0/26 ǃ 192.168.0.4/26 ǃ 192.168.0.8/24 ǃ 192.168.0.12/26 ∛ ᘏ ៤ 192.168.0.0/22 ⱘ∛ᘏ䏃⬅ˈ೼ RIP Ёᰃϡ㸠ⱘˈ಴Ўᅗⱘ∛ᘏ䏃⬅ഄഔࠡ㓔˄22˅ᇣѢᇍᑨⱘ C ㉏ᷛޚ㔥㒰ⱘഄഔࠡ㓔˄24˅ˈ৺߭Ӯߎ⦄䖭ḋⱘ䫭䇃ᦤ⼎ˈᰃ䇈Ā∛ᘏ䏃⬅᥽ⷕᖙ乏໻Ѣ៪ㄝѢ Џ㔥㒰ā˄гህᰃᷛޚ㔥㒰˅ǄԚԴৃҹᡞҹϞ䖭ѯᄤ㔥∛ᘏ៤ഄഔࠡ㓔Ў 25ˈ᳔໮Ў 24 ⱘᷛޚ C ㉏㔥㒰Ǆ

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ ৠḋԴϡ㛑ᡞ 172.16.0.0/18ǃ172.16.4.0/18ǃ172.16.8.0/18ǃ172.16.12.0/18 䖭ಯϾᄤ㔥∛ᘏ៤ഄ ഔࠡ㓔Ў 14 ⱘ䏃⬅ˈԚԴৃҹ∛ᘏ៤ഄഔࠡ㓔Ў 16 ៪ 17 ⱘ䏃⬅Ǆৠ⧚ˈϟ䴶ⱘ RIP 䏃⬅∛ᘏ䜡㕂ᰃ᮴ᬜⱘˈ಴Ўᄤ㔥᥽ⷕ 252.0.0.0 ᇣѢᷛޚⱘ A ㉏㔥㒰᥽ⷕ 255.0.0.0Ǆ Router(config)#interface Ethernet 1

Router(config-if)#ip summary-address rip 10.0.0.0 252.0.0.0

᥹ষϞⱘ↣Ͼ䏃⬅∛ᘏᖙ乏᳝ଃϔⱘЏ㔥㒰 ↣Ͼ᥹ষϞЎϔ㉏ᄤ㔥䖯㸠ⱘ䏃⬅∛ᘏˈ৘∛ᘏ䏃⬅ⱘЏ㔥㒰ᖙ乏ଃϔˈेՓ໮Ͼ∛ᘏ䏃⬅ⱘ ᄤ㔥᥽ⷕᰃϔḋⱘǄ՟བˈϟ䴶ⱘ∛ᘏᰃϡܕ䆌ⱘˈ಴Ў೼䖭䞠ⱘ Ethernet 1 ᥹ষϞ䜡㕂ⱘ 10.2.2.0/16 ∛ᘏ䏃⬅ⱘЏ㔥㒰ᑨ䆹ᰃ 10.2.0.0ˈ㗠ϡᰃ 10.2.2.0Ǆབᵰᡞ㄀Ѡᴵ䏃⬅∛ᘏ䜡㕂ЁⱘЏ 㔥㒰ᬍ៤ 10.2.0.0 255.255.0.0 ህৃҹњǄ Router(config)#interface Ethernet 1

Router(config-if)#ip summary-address rip 10.1.0.0 255.255.0.0 Router(config-if)#ip summary-address rip 10.2.2.0 255.255.0.0

8.2.5 ⑤ IP ഄഔ⹂䅸䜡㕂

咬䅸ᚙމϟˈIOS 䕃ӊӮ⹂䅸⌕ܹ RIP 䏃⬅᳈ᮄֵᙃⱘ⑤ IP ഄഔǄབᵰ⑤ IP ഄഔ᮴ᬜˈIOS 䕃ӊህӮᬒᓗ䖭Ͼ䏃⬅᳈ᮄǄ᠔ҹᴀ㡖гሲѢৃ䗝䜡㕂ӏࡵˈҙᔧ㽕⽕ℶ䏃⬅఼᥹ষϞ⌕ܹⱘ䏃⬅ ᳈ᮄࣙЁⱘ⑤ IP ഄഔ⹂䅸ࡳ㛑ᠡ䳔㽕䖯㸠Ǆ ⹂䅸⑤ IP ഄഔⱘⳂⱘᰃ⹂ֱ⌕ܹ䏃⬅᳈ᮄⱘ⑤ IP ഄഔᰃϢ᥹ᬊ䖭Ͼ䏃⬅᳈ᮄⱘ䏃⬅఼᥹ষϞ ⱘϔϾ IP ഄഔϔ㟈ˈгህᰃ⹂䅸䖭Ͼ䏃⬅᳈ᮄᰃҢⳳᅲⱘ䏃⬅఼᥹ষϞ᥹ᬊᴹⱘˈ㗠ϡᰃӾ㺙 ⱘǄ೼᥹ᬊ⌕ܹ䏃⬅᳈ᮄⱘ᥹ষϞ⽕ℶ∈ᑇߚࡆࡳ㛑гӮՓ IOS ㋏㒳ᠻ㸠䖭Ͼ⑤ഄഔ⹂䅸Ǆ Ԛᰃབᵰ᳝ϔϾ䏃⬅఼໘Ѣ⾏㒓⢊ᗕˈ㗠ԴজᏠᳯ೼ᴀഄ䏃⬅఼Ϟ᥹ᬊ䖭ৄ䏃⬅఼ⱘ䏃⬅᳈ ᮄˈ߭Դৃ㛑㽕೼ᴀഄ䏃⬅఼Ϟ⽕ℶ⑤ IP ഄഔ⹂䅸ࡳ㛑Ǆ঺໪ˈᇍѢ᮴㓪ো IP ⱘ᥹ষ˄гህᰃℸ ᥹ষϡ䜡㕂㞾Ꮕⱘ IP ഄഔˈԚӮ׳⫼݊Ҫ᥹ষⱘ IP ഄഔ˅ˈгϡᠻ㸠⑤ഄഔ⹂䅸Ǆ 㸼 8-4 ᠔⼎ⱘᰃ೼᥹ষϞਃ⫼ˈҹঞܼሔ⽕⫼⑤ IP ഄഔ⹂䅸ⱘ䜡㕂ℹ偸 ˄IOS ㋏㒳咬䅸ܼሔ ਃ⫼⑤ IP ഄഔ⹂䅸ࡳ㛑˅Ǆ 㸼 8-4 ೼᥹ষϞਃ⫼៪ܼሔ⽕⫼⑤ IP ഄഔ⹂䅸ࡳ㛑ⱘ䜡㕂ℹ偸 ℹ偸 ੑҸ 䇈ᯢ ҹϟᰃ೼݋ԧ䏃⬅఼᥹ষϞਃ⫼⑤ IP ഄഔ⹂䅸ࡳ㛑ⱘ䜡㕂ℹ偸ˈ಴Ў㋏㒳咬䅸ᰃܼሔਃ⫼䆹ࡳ㛑ⱘˈ᠔ҹা䳔㽕೼ᇍᑨ᥹ষϞਃ⫼∈ ᑇߚࡆࡳ㛑ेৃǄ 1 enable ՟བ˖ Router> enable 䖯ܹ⡍ᴗ῵ᓣǄབᵰ䜡㕂њ⡍ᴗ῵ᓣᆚⷕˈ߭㽕ᣝᦤ⼎䕧ܹℷ⹂ ⱘ⡍ᴗ῵ᓣᆚⷕᠡ㛑䖯ܹ 2 configure terminal ՟བ˖

3

ᣛᅮ㽕⽕ℶ⑤ IP ഄഔ⹂䅸ⱘ᥹ষˈ䖯ܹ᥹ষ䜡㕂῵ᓣ 4 ip split-horizon ՟བ˖ Router(config-if)# ip split-horizon ೼Ϟ䗄᥹ষϞਃ⫼∈ᑇߚࡆࡳ㛑ˈⳌᔧѢৠᯊ೼ҹϞ᥹ষϞਃ⫼ њ⑤ IP ഄഔ⹂䅸ࡳ㛑 ϟ䴶ᰃܼሔ⽕⫼⑤ IP ഄഔ⹂䅸ࡳ㛑ⱘ䜡㕂ℹ偸 1 configure terminal ՟བ˖

䖯ܹܼሔ䜡㕂῵ᓣ 2 router rip ՟བ˖ Router(config)#router rip 䖯ܹ䏃⬅఼䜡㕂῵ᓣ

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ 㓁㸼 ℹ偸 ੑҸ 䇈ᯢ 3 no validate-update-source ՟བ˖ Router(config-router)# no validate-update-source ܼሔ⽕ℶᇍ⌕ܹⱘ RIP 䏃⬅᳈ᮄࣙⱘ⑤ IP ഄഔ⹂䅸 4 end ՟བ˖ Router(config-router)# end 䗔ߎ䏃⬅఼䜡㕂῵ᓣˈ䖨ಲ⡍ᴗ῵ᓣ ҹϟ⼎՟ᰃ೼ RIP 䏃⬅఼Ϟܼሔ⽕⫼ᇍ⌕ܹⱘ RIP 䏃⬅᳈ᮄⱘ⑤ IP ഄഔ⹂䅸ࡳ㛑Ǆ

Router# configure terminal Router(config)#router rip Router(config-router)#network 10.105.0.0 Router(config-router)#no validate-update-source

8.2.6 ᳈ᮄࣙ䯈ᓊᯊ䜡㕂

ᴀ㡖гሲ䗝䜡ӏࡵˈҙ೼ᔧ催ᗻ㛑䏃⬅఼ϢԢᗻ㛑䏃⬅఼䖲᥹ᯊˈ೼催ᗻ㛑䏃⬅఼Ϟ䖯㸠䜡㕂Ǆ 咬䅸ᚙމϟˈ೼໮Ͼ RIP ᳈ᮄࣙⱘথ䗕䖛⿟Ё৘ϾࣙП䯈ᰃϡᦦܹᓊᯊⱘǄབᵰ᳈ᮄࣙᰃҢ催 ᗻ㛑䏃⬅఼থ䗕ࠄԢᗻ㛑䏃⬅఼ϞˈԴৃ㛑㽕催ᗻ㛑 RIP 䏃⬅఼Ϟˈ೼ RIP ໮Ͼ᳈ᮄࣙথ䗕䖛⿟Ё 㽕ᦦܹࣙ䯈ᓊᯊǄ݋ԧⱘ䜡㕂ℹ偸བ㸼 8-5 ᠔⼎Ǆ 㸼 8-5 RIP 䏃⬅᳈ᮄࣙথ䗕ᓊ䖳䜡㕂ℹ偸 ℹ偸 ੑҸ 䇈ᯢ 1 enable ՟བ˖ Router> enable 䖯ܹ⡍ᴗ῵ᓣǄབᵰ䜡㕂њ⡍ᴗ῵ᓣᆚⷕˈ߭㽕ᣝᦤ⼎䕧ܹℷ⹂ⱘ⡍ᴗ῵ᓣ ᆚⷕᠡ㛑䖯ܹ 2 configure terminal ՟བ˖ Router#configure terminal 䖯ܹܼሔ䜡㕂῵ᓣ 3 router rip ՟བ˖ Router(config)#router rip 䖯ܹ䏃⬅఼䜡㕂῵ᓣ 4 output-delay milliseconds ՟བ˖ Router(config-router)# output-delay 8 Ў䕧ߎ RIP ᳈ᮄࣙ䜡㕂ࣙ䯈ᓊᯊǄখ᭄ milliseconds ⱘপؐ㣗ೈЎ 8̚50 ↿ ⾦ˈ咬䅸ؐЎ 0ˈेϡᦦܹᓊᯊ 㽕ߴ䰸ॳᴹ᠔خⱘᓊᯊ䆒㕂ˈ߭ৃ⫼ no output-delay 䏃⬅఼䜡㕂῵ᓣੑҸ 5 end ՟བ˖ Router(config-router)# end 䗔ߎ䏃⬅఼䜡㕂῵ᓣˈ䖨ಲ⡍ᴗ῵ᓣ ҹϟ⼎՟ᰃ䆒㕂ࣙ䯈থ䗕䯈䱨Ў 10 䖭⾦Ǆ Router(config)#router rip Router(config-router)#output-delay 10

8.2.7 䗮䖛ᏻЁ㒻㔥㒰䖲᥹ⱘ䏃⬅఼ⱘ IP-RIP ᓊᯊᓔྟ䜡㕂

ᴀ㡖гᰃ䗝䜡ӏࡵˈҙ೼ Cisco 䏃⬅఼䗮䖛ᏻЁ㒻㔥㒰Ϣ䴲 Cisco 䏃⬅఼䖯㸠 RIPv2 MD5 䅸䆕 ᯊᠡ䳔㽕䜡㕂ǄԚ⬅ѢⳂࠡᏻЁ㒻ᡔᴃᏆ෎ᴀϞ㹿⎬≄њˈ᠔ҹᴀ㡖ৃҹϡᄺдǄ

ĀIP-RIP ᓊᯊᓔྟā˄IP-RIP Delay Start˅ࡳ㛑⫼Ѣ Cisco 䏃⬅ᓊᯊਃࡼ RIPv2 䚏ሙӮ䆱ˈⳈࠄ Ϣ䚏ሙ䏃⬅఼П䯈ⱘ㔥㒰䖲䗮ᗻᅠܼℷᐌˈҢ㗠⹂ֱথ䗕ࠄ䴲 Cisco 䚏ሙ䏃⬅఼ⱘ MD5 ࣙᑣ߫ো

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๏ฉፌћ౥ќڦ Cisc o ୟ ᆯഗದዃᇑ࠶૙๮֩ Ў 0Ǆ咬䅸ᚙމϟˈা㽕⠽⧚᥹ষਃ⫼њˈ䏃⬅఼ህৃҹϢՓ⫼ MD5 䅸䆕ⱘ䚏ሙ䏃⬅఼ᓎゟ RIPv2 Ӯ䆱ˈথ䗕 MD5 ࣙǄ

ᔧϔৄ Cisco 䏃⬅఼Ϣϔৄ䴲 Cisco 䏃⬅఼䗮䖛ᏻЁ㒻㔥㒰ˈՓ⫼ MD5 䅸䆕ᓎゟ RIPv2 䚏ሙ ݇㋏ᯊˈ㽕㒣ᐌ⫼ࠄ IP-RIP ᓊᯊਃࡼࡳ㛑ⱘǄᔧ RIPv2 䚏ሙ䏃⬅఼䗮䖛ᏻЁ㒻㔥㒰䖲᥹ᯊˈৃ㛑 ߎ⦄І㸠᥹ষ೼ᏻЁ㒻⬉䏃Ꮖޚ໛དӴ䕧੠᥹ᬊ᭄᥂ࠡህᏆ▔⌏ǄᔧІ㸠᥹ষᏆ▔⌏њˈԚᏻЁ㒻 ⬉䏃䖬≵᳝ᯊˈ߭ӏԩᛇ䗮䖛䖭ϾІ㸠᥹ষӴ䕧ⱘ MD5 䅸䆕䏃⬅᳈ᮄࣙ䛑ᇚ㹿϶ᓗǄ䖭ḋᔧᏻЁ 㒻⬉䏃Ꮖޚ໛དৢݡӴ䕧 MD5 ࣙˈࣙⱘᑣ߫োህϡݡᰃ߱ྟⱘ 0 њˈ㗠䯂乬ᰃ᳝ѯ䴲 Cisco 䏃⬅ ఼ϡܕ䆌㄀ϔϾ᥹ᬊⱘ MD5 ࣙⱘᑣ߫োϡᰃ 0ˈ㗠Ёᮁ RIPv2 䅸䆕ˈ᠔ҹ೼ Cisco 䏃⬅఼Ϟᠡ᳝ᴀ 㡖᠔ҟ㒡ⱘĀIP-RIP ᓊᯊᓔྟāࡳ㛑ˈা᳝ㄝᏻЁ㒻⬉䏃Ꮖޚ໛དᠡথ䗕㄀ϔϾ MD5 ࣙˈ䖭ḋህ ৃҹֱ䆕ᇍᮍ䴲 Cisco 䏃⬅఼᥹ᬊࠄⱘ㄀ϔϾ MD5 ࣙⱘᑣ߫োЎ 0Ǆ Ǐ⊼ᛣǐCisco াဎ୶࡜ၭ༘Ҷୣ൐াဎ୶ࠄೌӾԅԛྡྷّ MD5 ఊᄃͧԅ༝ۜӖဟ 0dఢڴદ ԅฉ৮ᄯࠧರဈॴ Cisco াဎ୶ēϢ༓ྑರဈ IP-RIP ཛྷನ୳Վٟટd খෳēཛྷನ୳Վٟટၽୣ൐फ໸ࠄࣇēఢࣙമྻ൞ฉۤ஄იྻ൞ฉࠄࣇdఢڴદԅাဎ୶Ϣટ ರဈ MD5 ఊᄃူׄ Cisco ಁ΁ߙो RIPv2 ݖܥē႕უّཛྷನ୳ՎٟટࢶટࢶྻࠓࢅუّูඕdӬ દԅ Cisco াဎ୶Ρ༖ರဈ 12.4ď12Đྻ౨͑·ԅ IOS ຂහd֗யუّཛྷನ୳ՎٟટࠧӲદԅ

Ciscoাဎ୶ଅᄢဈࣿߙोྡྷّူׄ Cisco ಁ΁ RIPv2 ঃࡢڑຂēωயರဈ MD5 ࠩ໻ঃࡢఊᄃನϬ

༓ྑರဈd 䜡㕂ᓊᯊਃࡼࡳ㛑䳔㽕ᅠ៤ҹϟϝᮍ䴶ⱘ䜡㕂˖ 䜡㕂 RIPv2 ण䆂 ೼І㸠ᄤ᥹ষϞ䜡㕂ᏻЁ㒻䜡㕂 RIPv2 ⱘ MD5 䅸䆕੠೼І㸠ᄤ᥹ষϞⱘ IP-RIP ᓊᯊਃࡼࡳ㛑 1ˊ䜡㕂 RIPv2 ण䆂 ಴Ў MD5 䅸䆕া᳝ RIPv2 ⠜ᴀᠡᬃᣕˈ᠔ҹ㽕䜡㕂 IP-RIP ᓊᯊਃࡼࡳ㛑ᖙ乏ܜ೼ᇍᑨⱘ

Cisco䏃⬅఼Ϟਃ⫼ RIPv2 ⠜ᴀण䆂ǄRIPv2 ⱘ݋ԧ䜡㕂ℹ偸খ㾕 8.2.2 㡖Ǆ

2ˊ೼І㸠ᄤ᥹ষϞ䜡㕂ᏻЁ㒻 ᴀ㡖݊ᅲҟ㒡ⱘᰃབԩЎᏻЁ㒻㔥㒰䜡㕂ϔϾІ㸠ᄤ᥹ষǄԚℸ໘ҟ㒡ⱘᮍ⊩ҙᰃ䆌໮⾡೼ϔ Ͼᄤ᥹ষϞ䜡㕂ᏻЁ㒻ᮍḜЁⱘϔ⾡ˈ݋ԧℹ偸བ㸼 8-6 ᠔⼎Ǆ 㸼 8-6 ЎᏻЁ㒻㔥㒰䜡㕂І㸠ᄤ᥹ষⱘℹ偸 ℹ偸 ੑҸ 䇈ᯢ 1 enable ՟བ˖ Router> enable 䖯ܹ⡍ᴗ῵ᓣǄབᵰ䜡㕂њ⡍ᴗ῵ᓣᆚⷕˈ߭㽕 ᣝᦤ⼎䕧ܹℷ⹂ⱘ⡍ᴗ῵ᓣᆚⷕᠡ㛑䖯ܹ 2 configure terminal ՟བ˖ Router#configure terminal 䖯ܹܼሔ䜡㕂῵ᓣ 3

Router (config)#interface serial3/0

ᣛᅮ㽕䜡㕂ᏻЁ㒻ⱘ᥹ষˈ䖯ܹ᥹ষ䜡㕂῵ᓣ

4

no ip address ՟བ˖

Router (config-if)# no ip address

ߴ䰸᥹ষϞᔧࠡ䜡㕂ⱘ IP ഄഔ

5

encapsulation frame-relay mfr number [name] ՟བ˖

Router(config-if)# encapsulation frame-relay ietf

ᣛᅮϞ䗄᥹ষⱘᏻЁ㒻ᇕ㺙㉏ൟˈ݋ԧখ㾕ᴀ㡖 ϟ䴶ҟ㒡

6

frame-relay lmi-type {cisco | ansi | q933a} ՟བ˖

Router(config-if)# frame-relay lmi-type ansi

ᣛ ᅮ Ϟ 䗄 ᥹ ষ ᏻ Ё 㒻 ᴀ ഄ ㅵ ⧚ ᥹ ষ ˄ local management interface_{ˈLMI˅㉏ൟˈ݋ԧখ㾕ᴀ㡖} ϟ䴶ҟ㒡