{"id":479200,"date":"2023-08-09T10:31:59","date_gmt":"2023-08-09T10:31:59","guid":{"rendered":""},"modified":"2023-09-05T11:18:22","modified_gmt":"2023-09-05T11:18:22","slug":"supernetting","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/supernetting\/","title":{"rendered":"Si\u00eau l\u01b0\u1edbi"},"content":{"rendered":"

Supernetting, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 t\u1ed5ng h\u1ee3p tuy\u1ebfn \u0111\u01b0\u1eddng ho\u1eb7c t\u00f3m t\u1eaft tuy\u1ebfn \u0111\u01b0\u1eddng, l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt m\u1ea1ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a v\u00e0 h\u1ee3p l\u00fd h\u00f3a c\u00e1c b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn trong m\u1ea1ng IP quy m\u00f4 l\u1edbn. B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p nhi\u1ec1u \u0111\u1ecba ch\u1ec9 m\u1ea1ng nh\u1ecf h\u01a1n th\u00e0nh m\u1ed9t \u0111\u1ecba ch\u1ec9 l\u1edbn h\u01a1n, Supernetting gi\u1ea3m k\u00edch th\u01b0\u1edbc c\u1ee7a b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn, t\u1eeb \u0111\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t m\u1ea1ng v\u00e0 gi\u1ea3m chi ph\u00ed ho\u1ea1t \u0111\u1ed9ng.<\/p>\n

L\u1ecbch s\u1eed v\u1ec1 ngu\u1ed3n g\u1ed1c c\u1ee7a Supernetting v\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn n\u00f3<\/h2>\n

Kh\u00e1i ni\u1ec7m Supernetting xu\u1ea5t hi\u1ec7n v\u00e0o \u0111\u1ea7u nh\u1eefng n\u0103m 1990 nh\u01b0 m\u1ed9t ph\u1ea3n \u1ee9ng tr\u01b0\u1edbc m\u1ed1i lo ng\u1ea1i ng\u00e0y c\u00e0ng t\u0103ng v\u1ec1 k\u00edch th\u01b0\u1edbc ng\u00e0y c\u00e0ng t\u0103ng c\u1ee7a c\u00e1c b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn Internet. Trong th\u1eddi gian n\u00e0y, s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a Internet v\u00e0 s\u1ef1 ph\u1ed5 bi\u1ebfn c\u1ee7a c\u00e1c \u0111\u1ecba ch\u1ec9 IP \u0111\u00f2i h\u1ecfi m\u1ed9t gi\u1ea3i ph\u00e1p c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng \u0111\u1ec3 qu\u1ea3n l\u00fd s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a vi\u1ec7c \u0111\u1ecbnh tuy\u1ebfn. \u00dd t\u01b0\u1edfng ban \u0111\u1ea7u l\u00e0 nh\u00f3m c\u00e1c kh\u1ed1i \u0111\u1ecba ch\u1ec9 IP li\u1ec1n k\u1ec1 th\u00e0nh c\u00e1c kh\u1ed1i l\u1edbn h\u01a1n, d\u1ec5 qu\u1ea3n l\u00fd h\u01a1n, d\u1eabn \u0111\u1ebfn kh\u00e1i ni\u1ec7m Supernetting.<\/p>\n

L\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn Supernetting c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb RFC 1338, c\u00f3 ti\u00eau \u0111\u1ec1 \u201cSupernetting: Chi\u1ebfn l\u01b0\u1ee3c ph\u00e2n b\u1ed5 v\u00e0 t\u1ed5ng h\u1ee3p \u0111\u1ecba ch\u1ec9\u201d, \u0111\u01b0\u1ee3c xu\u1ea5t b\u1ea3n v\u00e0o th\u00e1ng 5 n\u0103m 1992 b\u1edfi K. Varadhan, H. Berkowitz v\u00e0 J. Quarantillo. RFC n\u00e0y \u0111\u00e3 gi\u1edbi thi\u1ec7u kh\u00e1i ni\u1ec7m Supernetting v\u00e0 t\u1ea7m quan tr\u1ecdng c\u1ee7a n\u00f3 trong vi\u1ec7c gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 quy m\u00f4 c\u1ee7a Internet.<\/p>\n

Th\u00f4ng tin chi ti\u1ebft v\u1ec1 Supernetting: M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1 Supernetting<\/h2>\n

Supernetting li\u00ean quan \u0111\u1ebfn vi\u1ec7c t\u1ed5ng h\u1ee3p nhi\u1ec1u kh\u1ed1i m\u1ea1ng IP, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 kh\u1ed1i CIDR (\u0110\u1ecbnh tuy\u1ebfn li\u00ean mi\u1ec1n kh\u00f4ng ph\u00e2n lo\u1ea1i), th\u00e0nh m\u1ed9t kh\u1ed1i CIDR l\u1edbn h\u01a1n. Qu\u00e1 tr\u00ecnh n\u00e0y lo\u1ea1i b\u1ecf s\u1ef1 c\u1ea7n thi\u1ebft c\u1ee7a c\u00e1c m\u1ee5c ri\u00eang l\u1ebb cho t\u1eebng kh\u1ed1i nh\u1ecf h\u01a1n trong b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn, l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a b\u1ea3ng.<\/p>\n

K\u00fd hi\u1ec7u CIDR bi\u1ec3u th\u1ecb \u0111\u1ecba ch\u1ec9 IP v\u00e0 ti\u1ec1n t\u1ed1 \u0111\u1ecbnh tuy\u1ebfn li\u00ean quan c\u1ee7a n\u00f3 d\u01b0\u1edbi d\u1ea1ng d\u1ea5u g\u1ea1ch ch\u00e9o theo sau l\u00e0 s\u1ed1 bit quan tr\u1ecdng trong \u0111\u1ecba ch\u1ec9 m\u1ea1ng. V\u00ed d\u1ee5: \u0111\u1ecba ch\u1ec9 IPv4 192.168.0.0 v\u1edbi m\u1eb7t n\u1ea1 m\u1ea1ng con 255.255.255.0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng k\u00fd hi\u1ec7u CIDR l\u00e0 192.168.0.0\/24.<\/p>\n

Supernetting t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c \u0111\u1ecbnh tuy\u1ebfn b\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p nhi\u1ec1u kh\u1ed1i CIDR li\u1ec1n k\u1ec1 c\u00f3 c\u00f9ng \u0111\u1ed9 d\u00e0i ti\u1ec1n t\u1ed1 th\u00e0nh m\u1ed9t kh\u1ed1i CIDR duy nh\u1ea5t c\u00f3 \u0111\u1ed9 d\u00e0i ti\u1ec1n t\u1ed1 ng\u1eafn h\u01a1n. Kh\u1ed1i t\u1ed5ng h\u1ee3p n\u00e0y bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c kh\u1ed1i ri\u00eang l\u1ebb, d\u1eabn \u0111\u1ebfn vi\u1ec7c \u0111\u1ecbnh tuy\u1ebfn hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n

C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a Supernetting: Supernetting ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n

Supernetting d\u1ef1a tr\u00ean nguy\u00ean t\u1eafc c\u00e1c d\u1ea3i \u0111\u1ecba ch\u1ec9 IP nh\u1ecf h\u01a1n v\u1ed1n linh ho\u1ea1t h\u01a1n v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng c\u00e1c kh\u1ed1i CIDR l\u1edbn h\u01a1n. Qu\u00e1 tr\u00ecnh Supernetting bao g\u1ed3m c\u00e1c b\u01b0\u1edbc sau:<\/p>\n

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  1. X\u00e1c \u0111\u1ecbnh c\u00e1c kh\u1ed1i CIDR li\u1ec1n k\u1ec1 c\u00f3 c\u00f9ng \u0111\u1ed9 d\u00e0i ti\u1ec1n t\u1ed1.<\/li>\n
  2. X\u00e1c \u0111\u1ecbnh ti\u1ec1n t\u1ed1 chung \u0111\u01b0\u1ee3c chia s\u1ebb b\u1edfi c\u00e1c kh\u1ed1i n\u00e0y.<\/li>\n
  3. T\u1ea1o kh\u1ed1i CIDR m\u1edbi v\u1edbi \u0111\u1ed9 d\u00e0i ti\u1ec1n t\u1ed1 ng\u1eafn h\u01a1n bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c kh\u1ed1i ri\u00eang l\u1ebb.<\/li>\n
  4. C\u1eadp nh\u1eadt b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn v\u1edbi m\u1ee5c nh\u1eadp kh\u1ed1i CIDR t\u1ed5ng h\u1ee3p m\u1edbi.<\/li>\n<\/ol>\n

    B\u1eb1ng c\u00e1ch l\u00e0m theo quy tr\u00ecnh n\u00e0y, qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 s\u1ed1 l\u01b0\u1ee3ng m\u1ee5c trong b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00e1c quy\u1ebft \u0111\u1ecbnh \u0111\u1ecbnh tuy\u1ebfn, d\u1eabn \u0111\u1ebfn vi\u1ec7c ph\u00e2n b\u1ed5 v\u00e0 s\u1eed d\u1ee5ng \u0111\u1ecba ch\u1ec9 IP hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n

    Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a Supernetting<\/h2>\n

    Supernetting cung c\u1ea5p m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t k\u1ef9 thu\u1eadt c\u00f3 gi\u00e1 tr\u1ecb trong m\u1ea1ng hi\u1ec7n \u0111\u1ea1i:<\/p>\n

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    1. \n

      Gi\u1ea3m k\u00edch th\u01b0\u1edbc b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn:<\/strong> B\u1eb1ng c\u00e1ch h\u1ee3p nh\u1ea5t nhi\u1ec1u kh\u1ed1i CIDR nh\u1ecf h\u01a1n th\u00e0nh c\u00e1c kh\u1ed1i l\u1edbn h\u01a1n, Supernetting gi\u1ea3m \u0111\u00e1ng k\u1ec3 k\u00edch th\u01b0\u1edbc c\u1ee7a b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn. B\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn nh\u1ecf h\u01a1n s\u1ebd c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 c\u1ee7a b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh \u0111\u1ecbnh tuy\u1ebfn nhanh h\u01a1n.<\/p>\n<\/li>\n

    2. \n

      Hi\u1ec7u su\u1ea5t m\u1ea1ng n\u00e2ng cao:<\/strong> V\u1edbi b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn nh\u1ecf h\u01a1n, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u00f3 th\u1ec3 x\u1eed l\u00fd g\u00f3i hi\u1ec7u qu\u1ea3 h\u01a1n, gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t m\u1ea1ng v\u00e0 gi\u1ea3m \u0111\u1ed9 tr\u1ec5.<\/p>\n<\/li>\n

    3. \n

      T\u1ed1i \u01b0u h\u00f3a kh\u00f4ng gian \u0111\u1ecba ch\u1ec9:<\/strong> Supernetting cho ph\u00e9p s\u1eed d\u1ee5ng t\u1ed1t h\u01a1n kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 IP b\u1eb1ng c\u00e1ch gi\u1ea3m l\u00e3ng ph\u00ed \u0111\u1ecba ch\u1ec9 v\u00ec n\u00f3 t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c ph\u00e2n b\u1ed5 \u0111\u1ecba ch\u1ec9.<\/p>\n<\/li>\n

    4. \n

      Qu\u1ea3n l\u00fd m\u1ea1ng \u0111\u01a1n gi\u1ea3n:<\/strong> Vi\u1ec7c qu\u1ea3n l\u00fd s\u1ed1 l\u01b0\u1ee3ng l\u1edbn h\u01a1n c\u00e1c m\u1ee5c trong b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn c\u00f3 th\u1ec3 ph\u1ee9c t\u1ea1p v\u00e0 t\u1ed1n th\u1eddi gian. Supernetting \u0111\u01a1n gi\u1ea3n h\u00f3a quy tr\u00ecnh qu\u1ea3n l\u00fd m\u1ea1ng b\u1eb1ng c\u00e1ch gi\u1ea3m thi\u1ec3u s\u1ed1 l\u01b0\u1ee3ng m\u1ee5c nh\u1eadp.<\/p>\n<\/li>\n

    5. \n

      C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng:<\/strong> Khi m\u1ea1ng t\u0103ng quy m\u00f4, Supernetting cung c\u1ea5p gi\u1ea3i ph\u00e1p c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng \u0111\u1ec3 x\u1eed l\u00fd s\u1ed1 l\u01b0\u1ee3ng \u0111\u1ecba ch\u1ec9 m\u1ea1ng ng\u00e0y c\u00e0ng t\u0103ng.<\/p>\n<\/li>\n<\/ol>\n

      C\u00e1c lo\u1ea1i si\u00eau l\u01b0\u1edbi<\/h2>\n

      Supernetting c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh c\u00e1c lo\u1ea1i sau d\u1ef1a tr\u00ean k\u00edch th\u01b0\u1edbc v\u00e0 s\u1ed1 l\u01b0\u1ee3ng kh\u1ed1i CIDR t\u1ed5ng h\u1ee3p:<\/p>\n\n\n\n\n\n\n\n
      Ki\u1ec3u<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
      T\u00f3m t\u1eaft tuy\u1ebfn \u0111\u01b0\u1eddng<\/td>\nK\u1ebft h\u1ee3p nhi\u1ec1u kh\u1ed1i CIDR li\u1ec1n k\u1ec1 c\u00f3 c\u00f9ng \u0111\u1ed9 d\u00e0i ti\u1ec1n t\u1ed1 th\u00e0nh m\u1ed9t kh\u1ed1i CIDR duy nh\u1ea5t c\u00f3 \u0111\u1ed9 d\u00e0i ti\u1ec1n t\u1ed1 ng\u1eafn h\u01a1n.<\/td>\n<\/tr>\n
      T\u1ed5ng h\u1ee3p ti\u1ec1n t\u1ed1<\/td>\nH\u1ee3p nh\u1ea5t c\u00e1c kh\u1ed1i CIDR kh\u00f4ng li\u1ec1n k\u1ec1 v\u1edbi \u0111\u1ed9 d\u00e0i ti\u1ec1n t\u1ed1 kh\u00e1c nhau th\u00e0nh m\u1ed9t kh\u1ed1i CIDR l\u1edbn h\u01a1n.<\/td>\n<\/tr>\n
      Si\u00eau m\u1ea1ng \u0111a c\u1ea5p<\/td>\nSupernetting ph\u00e2n c\u1ea5p, trong \u0111\u00f3 c\u00e1c kh\u1ed1i Supernet nh\u1ecf h\u01a1n \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p \u0111\u1ec3 t\u1ea1o ra c\u00e1c kh\u1ed1i Supernet l\u1edbn h\u01a1n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      C\u00e1ch s\u1eed d\u1ee5ng Supernetting, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng<\/h2>\n

      S\u1eed d\u1ee5ng si\u00eau l\u01b0\u1edbi:<\/h3>\n
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      1. \n

        Nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP):<\/strong> ISP s\u1eed d\u1ee5ng Supernetting \u0111\u1ec3 t\u1ed5ng h\u1ee3p nhi\u1ec1u m\u1ea1ng kh\u00e1ch h\u00e0ng v\u00e0 gi\u1ea3m k\u00edch th\u01b0\u1edbc b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn, d\u1eabn \u0111\u1ebfn vi\u1ec7c \u0111\u1ecbnh tuy\u1ebfn l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp tr\u00ean m\u1ea1ng c\u1ee7a h\u1ecd hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<\/li>\n

      2. \n

        M\u1ea1ng doanh nghi\u1ec7p:<\/strong> C\u00e1c t\u1eadp \u0111o\u00e0n v\u00e0 t\u1ed5 ch\u1ee9c l\u1edbn s\u1eed d\u1ee5ng Supernetting \u0111\u1ec3 c\u1ee7ng c\u1ed1 m\u1ea1ng n\u1ed9i b\u1ed9 c\u1ee7a h\u1ecd, gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng m\u1ee5c trong b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c qu\u1ea3n l\u00fd m\u1ea1ng.<\/p>\n<\/li>\n<\/ol>\n

        V\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p:<\/h3>\n
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        1. \n

          Kh\u1ed1i CIDR kh\u00f4ng li\u1ec1n k\u1ec1:<\/strong> Khi x\u1eed l\u00fd c\u00e1c kh\u1ed1i CIDR kh\u00f4ng li\u1ec1n k\u1ec1, Supernetting truy\u1ec1n th\u1ed1ng c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng. T\u1eadp h\u1ee3p ti\u1ec1n t\u1ed1 c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y b\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p c\u00e1c kh\u1ed1i kh\u00f4ng li\u1ec1n k\u1ec1 th\u00e0nh m\u1ed9t kh\u1ed1i l\u1edbn h\u01a1n.<\/p>\n<\/li>\n

        2. \n

          \u0110\u1ecbnh tuy\u1ebfn kh\u00f4ng hi\u1ec7u qu\u1ea3:<\/strong> C\u00e1c kh\u1ed1i Supernet \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p kh\u00f4ng ch\u00ednh x\u00e1c c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c quy\u1ebft \u0111\u1ecbnh \u0111\u1ecbnh tuy\u1ebfn d\u01b0\u1edbi m\u1ee9c t\u1ed1i \u01b0u. Vi\u1ec7c b\u1ea3o tr\u00ec v\u00e0 xem x\u00e9t th\u01b0\u1eddng xuy\u00ean c\u00e1c b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t m\u1ea1ng t\u1ed1i \u01b0u.<\/p>\n<\/li>\n<\/ol>\n

          C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n

          Supernetting th\u01b0\u1eddng b\u1ecb nh\u1ea7m l\u1eabn v\u1edbi Subnetting, nh\u01b0ng ch\u00fang ph\u1ee5c v\u1ee5 c\u00e1c m\u1ee5c \u0111\u00edch kh\u00e1c nhau trong m\u1ea1ng:<\/p>\n\n\n\n\n\n\n\n
          \u0111\u1eb7c tr\u01b0ng<\/th>\nSi\u00eau l\u01b0\u1edbi<\/th>\nM\u1ea1ng con<\/th>\n<\/tr>\n<\/thead>\n
          M\u1ee5c \u0111\u00edch<\/td>\nT\u1ed5ng h\u1ee3p nhi\u1ec1u kh\u1ed1i CIDR nh\u1ecf h\u01a1n th\u00e0nh m\u1ed9t kh\u1ed1i l\u1edbn h\u01a1n.<\/td>\nChia m\u1ed9t m\u1ea1ng IP th\u00e0nh c\u00e1c m\u1ea1ng con nh\u1ecf h\u01a1n, c\u00f3 th\u1ec3 qu\u1ea3n l\u00fd \u0111\u01b0\u1ee3c.<\/td>\n<\/tr>\n
          K\u1ebft qu\u1ea3<\/td>\nKh\u1ed1i CIDR \u00edt h\u01a1n nh\u01b0ng l\u1edbn h\u01a1n trong b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn.<\/td>\nNhi\u1ec1u kh\u1ed1i CIDR h\u01a1n nh\u01b0ng nh\u1ecf h\u01a1n trong b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn.<\/td>\n<\/tr>\n
          Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/td>\nT\u1ed1i \u01b0u h\u00f3a \u0111\u1ecbnh tuy\u1ebfn Internet, hi\u1ec7u qu\u1ea3 kh\u00f4ng gian \u0111\u1ecba ch\u1ec9.<\/td>\nQu\u1ea3n l\u00fd m\u1ea1ng n\u1ed9i b\u1ed9, c\u1ea5p ph\u00e1t \u0111\u1ecba ch\u1ec9 IP.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn Supernetting<\/h2>\n

          Khi c\u00e1c m\u1ea1ng ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n v\u1ec1 quy m\u00f4 v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p, Supernetting s\u1ebd v\u1eabn l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt quan tr\u1ecdng \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 m\u1ea1ng t\u1ed5ng th\u1ec3. C\u00e1c c\u00f4ng ngh\u1ec7 trong t\u01b0\u01a1ng lai c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng h\u00f3a h\u01a1n n\u1eefa quy tr\u00ecnh Supernetting, gi\u00fap qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng x\u1eed l\u00fd c\u00e1c m\u1ea1ng quy m\u00f4 l\u1edbn d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n

          Ngo\u00e0i ra, vi\u1ec7c \u00e1p d\u1ee5ng IPv6 s\u1ebd mang \u0111\u1ebfn nh\u1eefng c\u01a1 h\u1ed9i v\u00e0 th\u00e1ch th\u1ee9c m\u1edbi cho Supernetting, v\u00ec kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 r\u1ed9ng l\u1edbn c\u1ee7a IPv6 s\u1ebd \u0111\u00f2i h\u1ecfi nh\u1eefng c\u00e1ch ti\u1ebfp c\u1eadn s\u00e1ng t\u1ea1o \u0111\u1ec3 ph\u00e2n b\u1ed5 v\u00e0 \u0111\u1ecbnh tuy\u1ebfn \u0111\u1ecba ch\u1ec9.<\/p>\n

          C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi Supernetting<\/h2>\n

          M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 b\u1ed5 sung cho Supernetting b\u1eb1ng c\u00e1ch t\u0103ng c\u01b0\u1eddng hi\u1ec7u su\u1ea5t v\u00e0 b\u1ea3o m\u1eadt m\u1ea1ng. Khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p, m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3:<\/p>\n

            \n
          1. \n

            C\u00e2n b\u1eb1ng t\u1ea3i:<\/strong> M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 ph\u00e2n ph\u1ed1i l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u1ebfn tr\u00ean nhi\u1ec1u m\u00e1y ch\u1ee7, gi\u1ea3m t\u1ea3i cho c\u00e1c ph\u00e2n \u0111o\u1ea1n m\u1ea1ng ri\u00eang l\u1ebb v\u00e0 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t m\u1ea1ng.<\/p>\n<\/li>\n

          2. \n

            B\u1ea3o m\u1eadt v\u00e0 \u1ea9n danh:<\/strong> Proxy \u0111\u00f3ng vai tr\u00f2 trung gian gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 Internet, cung c\u1ea5p th\u00eam l\u1edbp b\u1ea3o m\u1eadt v\u00e0 \u1ea9n danh. Ch\u00fang c\u00f3 th\u1ec3 ch\u1eb7n l\u01b0u l\u01b0\u1ee3ng \u0111\u1ed9c h\u1ea1i v\u00e0 ng\u0103n ch\u1eb7n vi\u1ec7c l\u1ed9 tr\u1ef1c ti\u1ebfp c\u00e1c \u0111\u1ecba ch\u1ec9 m\u1ea1ng n\u1ed9i b\u1ed9.<\/p>\n<\/li>\n

          3. \n

            Ph\u00e2n b\u1ed1 \u0111\u1ecba l\u00fd:<\/strong> B\u1eb1ng c\u00e1ch tri\u1ec3n khai m\u00e1y ch\u1ee7 proxy \u1edf c\u00e1c v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd kh\u00e1c nhau, qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng ph\u00e2n ph\u1ed1i n\u1ed9i dung v\u00e0 gi\u1ea3m \u0111\u1ed9 tr\u1ec5 cho ng\u01b0\u1eddi d\u00f9ng \u1edf nhi\u1ec1u khu v\u1ef1c kh\u00e1c nhau.<\/p>\n<\/li>\n<\/ol>\n

            Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n

            \u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 Supernetting, b\u1ea1n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n

              \n
            1. RFC 1338 \u2013 Supernetting: Chi\u1ebfn l\u01b0\u1ee3c t\u1ed5ng h\u1ee3p v\u00e0 g\u00e1n \u0111\u1ecba ch\u1ec9<\/a><\/li>\n
            2. Cisco: T\u00ecm hi\u1ec3u v\u1ec1 \u0111\u1ecba ch\u1ec9 IP v\u00e0 bi\u1ec3u \u0111\u1ed3 CIDR<\/a><\/li>\n<\/ol>\n

              H\u00e3y nh\u1edb r\u1eb1ng Supernetting l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd trong vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a m\u1ea1ng v\u00e0 vi\u1ec7c hi\u1ec3u c\u00e1c nguy\u00ean t\u1eafc c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 mang l\u1ea1i l\u1ee3i \u00edch to l\u1edbn cho c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng c\u0169ng nh\u01b0 ISP.<\/p>","protected":false},"featured_media":479201,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-479200","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Supernetting: Expanding Networks with Efficiency<\/mark>","faq_items":[{"question":"What is Supernetting?","answer":"

              Supernetting, also known as route aggregation or route summarization, is a networking technique used to optimize and streamline routing tables in large-scale IP networks. It involves combining multiple smaller network addresses into a single larger one, reducing the size of routing tables, improving network performance, and reducing overhead.<\/p>"},{"question":"How did Supernetting originate?","answer":"

              The concept of Supernetting emerged in the early 1990s as a response to the growing concern over the increasing size of Internet routing tables. The first mention of Supernetting can be traced back to RFC 1338, titled \"Supernetting: an Address Assignment and Aggregation Strategy,\" published in May 1992.<\/p>"},{"question":"How does Supernetting work?","answer":"

              Supernetting works by identifying contiguous CIDR blocks with the same prefix length, determining the common prefix, and creating a new CIDR block with a shorter prefix length that encompasses all the individual blocks. This process reduces the number of routing table entries and simplifies routing decisions.<\/p>"},{"question":"What are the key features of Supernetting?","answer":"

              Supernetting offers several key features, including reduced routing table size, enhanced network performance, address space optimization, simplified network management, and improved scalability.<\/p>"},{"question":"What types of Supernetting exist?","answer":"

              Supernetting can be classified into three types:<\/p>

              1. Route Summarization: Combines contiguous CIDR blocks with the same prefix length into a single CIDR block with a shorter prefix.<\/li>
              2. Prefix Aggregation: Merges non-contiguous CIDR blocks with different prefix lengths into a larger CIDR block.<\/li>
              3. Multilevel Supernet: Hierarchical Supernetting where smaller Supernet blocks are combined to create larger Supernet blocks.<\/li><\/ol>"},{"question":"How is Supernetting used, and what problems can arise?","answer":"

                Supernetting is used by Internet Service Providers (ISPs) and large enterprises to optimize their networks. Problems may arise with discontiguous CIDR blocks, which can be addressed using Prefix Aggregation. Regular maintenance and review of routing tables are also important to ensure optimal network performance.<\/p>"},{"question":"How does Supernetting compare to Subnetting?","answer":"

                Supernetting and Subnetting are different techniques in networking. While Supernetting optimizes routing tables by combining smaller CIDR blocks, Subnetting divides a single IP network into smaller, manageable subnets.<\/p>"},{"question":"What is the future of Supernetting?","answer":"

                As networks continue to grow, Supernetting will remain crucial for optimizing routing tables and improving network efficiency. Future technologies may automate the process further, and the adoption of IPv6 will present new opportunities and challenges for Supernetting.<\/p>"},{"question":"How are proxy servers associated with Supernetting?","answer":"

                Proxy servers complement Supernetting by enhancing network security, performance, and geographical distribution. They act as intermediaries between users and the Internet, providing an additional layer of security and anonymity.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/479200","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/479200\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/479201"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=479200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}