{"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\/cn\/wiki\/supernetting\/","title":{"rendered":"\u8d85\u7ea7\u7f51"},"content":{"rendered":"

\u8d85\u7ea7\u7f51\uff0c\u4e5f\u79f0\u4e3a\u8def\u7531\u805a\u5408\u6216\u8def\u7531\u6c47\u603b\uff0c\u662f\u4e00\u79cd\u7528\u4e8e\u4f18\u5316\u548c\u7b80\u5316\u5927\u578b IP \u7f51\u7edc\u4e2d\u8def\u7531\u8868\u7684\u7f51\u7edc\u6280\u672f\u3002\u901a\u8fc7\u5c06\u591a\u4e2a\u8f83\u5c0f\u7684\u7f51\u7edc\u5730\u5740\u7ec4\u5408\u6210\u4e00\u4e2a\u8f83\u5927\u7684\u7f51\u7edc\u5730\u5740\uff0c\u8d85\u7ea7\u7f51\u7edc\u51cf\u5c11\u4e86\u8def\u7531\u8868\u7684\u5927\u5c0f\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u7f51\u7edc\u6027\u80fd\u5e76\u51cf\u5c11\u4e86\u5f00\u9500\u3002<\/p>\n

\u8d85\u7ea7\u7f51\u7684\u8d77\u6e90\u5386\u53f2\u53ca\u5176\u9996\u6b21\u63d0\u53ca<\/h2>\n

\u8d85\u7ea7\u7f51\u7684\u6982\u5ff5\u51fa\u73b0\u4e8e 20 \u4e16\u7eaa 90 \u5e74\u4ee3\u521d\uff0c\u4f5c\u4e3a\u5bf9\u4e92\u8054\u7f51\u8def\u7531\u8868\u89c4\u6a21\u4e0d\u65ad\u6269\u5927\u7684\u65e5\u76ca\u5173\u6ce8\u7684\u56de\u5e94\u3002\u5728\u6b64\u671f\u95f4\uff0c\u4e92\u8054\u7f51\u7684\u53d1\u5c55\u548c IP \u5730\u5740\u7684\u6fc0\u589e\u9700\u8981\u53ef\u6269\u5c55\u7684\u89e3\u51b3\u65b9\u6848\u6765\u7ba1\u7406\u8def\u7531\u7684\u590d\u6742\u6027\u3002\u6700\u521d\u7684\u60f3\u6cd5\u662f\u5c06\u8fde\u7eed\u7684 IP \u5730\u5740\u5757\u5206\u7ec4\u4e3a\u66f4\u5927\u3001\u66f4\u6613\u4e8e\u7ba1\u7406\u7684\u5757\uff0c\u8fd9\u50ac\u751f\u4e86\u8d85\u7ea7\u7f51\u7edc\u7684\u6982\u5ff5\u3002<\/p>\n

\u9996\u6b21\u63d0\u53ca\u8d85\u7ea7\u7f51\u7edc\u53ef\u8ffd\u6eaf\u5230 1992 \u5e74 5 \u6708\u7531 K. Varadhan\u3001H. Berkowitz \u548c J. Quarantillo \u53d1\u8868\u7684 RFC 1338\uff0c\u6807\u9898\u4e3a\u201c\u8d85\u7ea7\u7f51\u7edc\uff1a\u5730\u5740\u5206\u914d\u548c\u805a\u5408\u7b56\u7565\u201d\u3002\u8be5 RFC \u5f15\u5165\u4e86\u8d85\u7ea7\u7f51\u7edc\u7684\u6982\u5ff5\u53ca\u5176\u5728\u89e3\u51b3\u4e92\u8054\u7f51\u6269\u5c55\u95ee\u9898\u65b9\u9762\u7684\u91cd\u8981\u610f\u4e49\u3002<\/p>\n

\u6709\u5173\u8d85\u7ea7\u7f51\u7edc\u7684\u8be6\u7ec6\u4fe1\u606f\uff1a\u6269\u5c55\u8d85\u7ea7\u7f51\u7edc\u4e3b\u9898<\/h2>\n

\u8d85\u7ea7\u7f51\u6d89\u53ca\u5c06\u591a\u4e2a IP \u7f51\u7edc\u5757\uff08\u901a\u5e38\u79f0\u4e3a CIDR\uff08\u65e0\u7c7b\u57df\u95f4\u8def\u7531\uff09\u5757\uff09\u805a\u5408\u4e3a\u5355\u4e2a\u66f4\u5927\u7684 CIDR \u5757\u3002\u6b64\u8fc7\u7a0b\u6d88\u9664\u4e86\u8def\u7531\u8868\u4e2d\u6bcf\u4e2a\u8f83\u5c0f\u5757\u7684\u5355\u72ec\u6761\u76ee\u7684\u9700\u8981\uff0c\u4ece\u800c\u5927\u5927\u51cf\u5c0f\u4e86\u8868\u7684\u5927\u5c0f\u548c\u590d\u6742\u6027\u3002<\/p>\n

CIDR \u8868\u793a\u6cd5\u5c06 IP \u5730\u5740\u53ca\u5176\u5173\u8054\u7684\u8def\u7531\u524d\u7f00\u8868\u793a\u4e3a\u659c\u7ebf\uff0c\u540e\u8ddf\u7f51\u7edc\u5730\u5740\u4e2d\u7684\u6709\u6548\u4f4d\u6570\u3002\u4f8b\u5982\uff0c\u5b50\u7f51\u63a9\u7801\u4e3a 255.255.255.0 \u7684 IPv4 \u5730\u5740 192.168.0.0 \u53ef\u4ee5\u7528 CIDR \u8868\u793a\u6cd5\u8868\u793a\u4e3a 192.168.0.0\/24\u3002<\/p>\n

Supernetting \u901a\u8fc7\u5c06\u5177\u6709\u76f8\u540c\u524d\u7f00\u957f\u5ea6\u7684\u591a\u4e2a\u8fde\u7eed CIDR \u5757\u7ec4\u5408\u6210\u5177\u6709\u8f83\u77ed\u524d\u7f00\u957f\u5ea6\u7684\u5355\u4e2a CIDR \u5757\u6765\u4f18\u5316\u8def\u7531\u3002\u8be5\u805a\u5408\u5757\u5305\u542b\u6240\u6709\u5355\u72ec\u7684\u5757\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u8def\u7531\u3002<\/p>\n

Supernetting\u7684\u5185\u90e8\u7ed3\u6784\uff1aSupernetting\u5982\u4f55\u5de5\u4f5c<\/h2>\n

\u8d85\u7ea7\u7f51\u6240\u4f9d\u8d56\u7684\u539f\u5219\u662f\uff0c\u8f83\u5c0f\u7684 IP \u5730\u5740\u8303\u56f4\u672c\u8d28\u4e0a\u66f4\u52a0\u7075\u6d3b\uff0c\u5e76\u4e14\u53ef\u4ee5\u7528\u8f83\u5927\u7684 CIDR \u5757\u6765\u8868\u793a\u3002 Supernetting\u7684\u8fc7\u7a0b\u5305\u62ec\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n

    \n
  1. \u8bc6\u522b\u5177\u6709\u76f8\u540c\u524d\u7f00\u957f\u5ea6\u7684\u8fde\u7eed CIDR \u5757\u3002<\/li>\n
  2. \u786e\u5b9a\u8fd9\u4e9b\u5757\u5171\u4eab\u7684\u516c\u5171\u524d\u7f00\u3002<\/li>\n
  3. \u521b\u5efa\u4e00\u4e2a\u5177\u6709\u66f4\u77ed\u524d\u7f00\u957f\u5ea6\u7684\u65b0 CIDR \u5757\uff0c\u4ee5\u8986\u76d6\u6240\u6709\u5355\u4e2a\u5757\u3002<\/li>\n
  4. \u4f7f\u7528\u65b0\u7684\u805a\u5408 CIDR \u5757\u6761\u76ee\u66f4\u65b0\u8def\u7531\u8868\u3002<\/li>\n<\/ol>\n

    \u901a\u8fc7\u9075\u5faa\u6b64\u6d41\u7a0b\uff0c\u7f51\u7edc\u7ba1\u7406\u5458\u53ef\u4ee5\u5927\u5e45\u51cf\u5c11\u8def\u7531\u8868\u6761\u76ee\u7684\u6570\u91cf\u5e76\u7b80\u5316\u8def\u7531\u51b3\u7b56\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684 IP \u5730\u5740\u5206\u914d\u548c\u5229\u7528\u3002<\/p>\n

    \u8d85\u7ea7\u7f51\u7684\u4e3b\u8981\u7279\u5f81\u5206\u6790<\/h2>\n

    \u8d85\u7ea7\u7f51\u7edc\u63d0\u4f9b\u4e86\u51e0\u4e2a\u5173\u952e\u529f\u80fd\uff0c\u4f7f\u5176\u6210\u4e3a\u73b0\u4ee3\u7f51\u7edc\u4e2d\u7684\u4e00\u9879\u6709\u4ef7\u503c\u7684\u6280\u672f\uff1a<\/p>\n

      \n
    1. \n

      \u51cf\u5c11\u8def\u7531\u8868\u5927\u5c0f\uff1a<\/strong> \u901a\u8fc7\u5c06\u591a\u4e2a\u8f83\u5c0f\u7684 CIDR \u5757\u5408\u5e76\u4e3a\u8f83\u5927\u7684 CIDR \u5757\uff0cSupernetting \u663e\u7740\u51cf\u5c0f\u4e86\u8def\u7531\u8868\u7684\u5927\u5c0f\u3002\u8f83\u5c0f\u7684\u8def\u7531\u8868\u53ef\u4ee5\u63d0\u9ad8\u8def\u7531\u5668\u7684\u6548\u7387\u5e76\u5bfc\u81f4\u66f4\u5feb\u7684\u8def\u7531\u51b3\u7b56\u3002<\/p>\n<\/li>\n

    2. \n

      \u589e\u5f3a\u7684\u7f51\u7edc\u6027\u80fd\uff1a<\/strong> \u901a\u8fc7\u66f4\u5c0f\u7684\u8def\u7531\u8868\uff0c\u8def\u7531\u5668\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u5904\u7406\u6570\u636e\u5305\uff0c\u4ece\u800c\u63d0\u9ad8\u7f51\u7edc\u6027\u80fd\u5e76\u51cf\u5c11\u5ef6\u8fdf\u3002<\/p>\n<\/li>\n

    3. \n

      \u5730\u5740\u7a7a\u95f4\u4f18\u5316\uff1a<\/strong> \u8d85\u7ea7\u7f51\u53ef\u4ee5\u4f18\u5316\u5730\u5740\u5206\u914d\uff0c\u4ece\u800c\u51cf\u5c11\u5730\u5740\u6d6a\u8d39\uff0c\u4ece\u800c\u66f4\u597d\u5730\u5229\u7528 IP \u5730\u5740\u7a7a\u95f4\u3002<\/p>\n<\/li>\n

    4. \n

      \u7b80\u5316\u7f51\u7edc\u7ba1\u7406\uff1a<\/strong> \u7ba1\u7406\u5927\u91cf\u8def\u7531\u8868\u6761\u76ee\u53ef\u80fd\u975e\u5e38\u590d\u6742\u4e14\u8017\u65f6\u3002\u8d85\u7ea7\u7f51\u901a\u8fc7\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u6761\u76ee\u6570\u91cf\u6765\u7b80\u5316\u7f51\u7edc\u7ba1\u7406\u8fc7\u7a0b\u3002<\/p>\n<\/li>\n

    5. \n

      \u6539\u8fdb\u7684\u53ef\u6269\u5c55\u6027\uff1a<\/strong> \u968f\u7740\u7f51\u7edc\u89c4\u6a21\u7684\u6269\u5927\uff0cSupernetting \u63d0\u4f9b\u4e86\u53ef\u6269\u5c55\u7684\u89e3\u51b3\u65b9\u6848\u6765\u5904\u7406\u4e0d\u65ad\u589e\u52a0\u7684\u7f51\u7edc\u5730\u5740\u6570\u91cf\u3002<\/p>\n<\/li>\n<\/ol>\n

      \u8d85\u7ea7\u7f51\u7684\u7c7b\u578b<\/h2>\n

      \u6839\u636e\u805a\u5408 CIDR \u5757\u7684\u5927\u5c0f\u548c\u6570\u91cf\uff0c\u8d85\u7f51\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u51e0\u79cd\u7c7b\u578b\uff1a<\/p>\n\n\n\n\n\n\n\n
      \u7c7b\u578b<\/th>\n\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n
      \u8def\u7531\u6c47\u603b<\/td>\n\u5c06\u591a\u4e2a\u5177\u6709\u76f8\u540c\u524d\u7f00\u957f\u5ea6\u7684\u8fde\u7eed CIDR \u5757\u7ec4\u5408\u6210\u4e00\u4e2a\u5177\u6709\u8f83\u77ed\u524d\u7f00\u957f\u5ea6\u7684 CIDR \u5757\u3002<\/td>\n<\/tr>\n
      \u524d\u7f00\u805a\u5408<\/td>\n\u5c06\u5177\u6709\u4e0d\u540c\u524d\u7f00\u957f\u5ea6\u7684\u4e0d\u8fde\u7eed CIDR \u5757\u5408\u5e76\u4e3a\u4e00\u4e2a\u66f4\u5927\u7684 CIDR \u5757\u3002<\/td>\n<\/tr>\n
      \u591a\u7ea7\u8d85\u7f51<\/td>\n\u5206\u5c42\u8d85\u7ea7\u7f51\uff0c\u5c06\u8f83\u5c0f\u7684\u8d85\u7ea7\u7f51\u5757\u7ec4\u5408\u8d77\u6765\u521b\u5efa\u8f83\u5927\u7684\u8d85\u7ea7\u7f51\u5757\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Supernetting\u7684\u4f7f\u7528\u65b9\u6cd5\u3001\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u9047\u5230\u7684\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6cd5<\/h2>\n

      \u5229\u7528\u8d85\u7ea7\u7f51\uff1a<\/h3>\n
        \n
      1. \n

        \u4e92\u8054\u7f51\u670d\u52a1\u63d0\u4f9b\u5546 (ISP)\uff1a<\/strong> ISP \u4f7f\u7528 Supernetting \u805a\u5408\u591a\u4e2a\u5ba2\u6237\u7f51\u7edc\u5e76\u51cf\u5c0f\u5176\u8def\u7531\u8868\u7684\u5927\u5c0f\uff0c\u4ece\u800c\u5728\u5176\u7f51\u7edc\u4e2d\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u6d41\u91cf\u8def\u7531\u3002<\/p>\n<\/li>\n

      2. \n

        \u4f01\u4e1a\u7f51\u7edc\uff1a<\/strong> \u5927\u578b\u516c\u53f8\u548c\u7ec4\u7ec7\u4f7f\u7528\u8d85\u7ea7\u7f51\u6765\u6574\u5408\u5176\u5185\u90e8\u7f51\u7edc\uff0c\u51cf\u5c11\u8def\u7531\u8868\u6761\u76ee\u7684\u6570\u91cf\u5e76\u7b80\u5316\u7f51\u7edc\u7ba1\u7406\u3002<\/p>\n<\/li>\n<\/ol>\n

        \u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6848\uff1a<\/h3>\n
          \n
        1. \n

          \u4e0d\u8fde\u7eed\u7684 CIDR \u5757\uff1a<\/strong> \u5f53\u5904\u7406\u975e\u8fde\u7eed\u7684 CIDR \u5757\u65f6\uff0c\u4f20\u7edf\u7684 Supernetting \u53ef\u80fd\u4e0d\u9002\u7528\u3002\u524d\u7f00\u805a\u5408\u53ef\u4ee5\u901a\u8fc7\u5c06\u4e0d\u8fde\u7eed\u7684\u5757\u7ec4\u5408\u6210\u4e00\u4e2a\u66f4\u5927\u7684\u5757\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n<\/li>\n

        2. \n

          \u8def\u7531\u6548\u7387\u4f4e\u4e0b\uff1a<\/strong> \u9519\u8bef\u805a\u5408\u7684\u8d85\u7f51\u5757\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8def\u7531\u51b3\u7b56\u4e0d\u7406\u60f3\u3002\u5b9a\u671f\u7ef4\u62a4\u548c\u68c0\u67e5\u8def\u7531\u8868\u5bf9\u4e8e\u786e\u4fdd\u6700\u4f73\u7f51\u7edc\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/li>\n<\/ol>\n

          \u4e3b\u8981\u7279\u70b9\u53ca\u4e0e\u540c\u7c7b\u672f\u8bed\u7684\u5176\u4ed6\u6bd4\u8f83<\/h2>\n

          \u8d85\u7ea7\u7f51\u7ecf\u5e38\u4e0e\u5b50\u7f51\u6df7\u6dc6\uff0c\u4f46\u5b83\u4eec\u5728\u7f51\u7edc\u4e2d\u5177\u6709\u4e0d\u540c\u7684\u7528\u9014\uff1a<\/p>\n\n\n\n\n\n\n\n
          \u7279\u5f81<\/th>\n\u8d85\u7ea7\u7f51<\/th>\n\u5b50\u7f51\u5212\u5206<\/th>\n<\/tr>\n<\/thead>\n
          \u76ee\u7684<\/td>\n\u5c06\u591a\u4e2a\u8f83\u5c0f\u7684 CIDR \u5757\u805a\u5408\u4e3a\u4e00\u4e2a\u8f83\u5927\u7684 CIDR \u5757\u3002<\/td>\n\u5c06\u5355\u4e2a IP \u7f51\u7edc\u5212\u5206\u4e3a\u66f4\u5c0f\u7684\u3001\u53ef\u7ba1\u7406\u7684\u5b50\u7f51\u3002<\/td>\n<\/tr>\n
          \u7ed3\u679c<\/td>\n\u8def\u7531\u8868\u4e2d\u7684 CIDR \u5757\u66f4\u5c11\u4f46\u66f4\u5927\u3002<\/td>\n\u8def\u7531\u8868\u4e2d\u7684 CIDR \u5757\u66f4\u591a\u4f46\u66f4\u5c0f\u3002<\/td>\n<\/tr>\n
          \u7528\u4f8b<\/td>\n\u4e92\u8054\u7f51\u8def\u7531\u4f18\u5316\uff0c\u5730\u5740\u7a7a\u95f4\u6548\u7387\u63d0\u9ad8\u3002<\/td>\n\u5185\u90e8\u7f51\u7edc\u7ba1\u7406\u3001IP\u5730\u5740\u5206\u914d\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u4e0e\u8d85\u7ea7\u7f51\u7edc\u76f8\u5173\u7684\u672a\u6765\u524d\u666f\u548c\u6280\u672f<\/h2>\n

          \u968f\u7740\u7f51\u7edc\u89c4\u6a21\u548c\u590d\u6742\u6027\u4e0d\u65ad\u589e\u957f\uff0c\u8d85\u7ea7\u7f51\u4ecd\u5c06\u662f\u4f18\u5316\u8def\u7531\u8868\u548c\u63d0\u9ad8\u6574\u4f53\u7f51\u7edc\u6548\u7387\u7684\u5173\u952e\u6280\u672f\u3002\u672a\u6765\u7684\u6280\u672f\u53ef\u80fd\u4f1a\u8fdb\u4e00\u6b65\u5b9e\u73b0\u8d85\u7ea7\u7f51\u8fc7\u7a0b\u7684\u81ea\u52a8\u5316\uff0c\u4f7f\u7f51\u7edc\u7ba1\u7406\u5458\u66f4\u5bb9\u6613\u5904\u7406\u5927\u89c4\u6a21\u7f51\u7edc\u3002<\/p>\n

          \u6b64\u5916\uff0cIPv6 \u7684\u91c7\u7528\u5c06\u4e3a\u8d85\u7ea7\u7f51\u5e26\u6765\u65b0\u7684\u673a\u9047\u548c\u6311\u6218\uff0c\u56e0\u4e3a IPv6 \u5de8\u5927\u7684\u5730\u5740\u7a7a\u95f4\u5c06\u9700\u8981\u521b\u65b0\u7684\u5730\u5740\u5206\u914d\u548c\u8def\u7531\u65b9\u6cd5\u3002<\/p>\n

          \u5982\u4f55\u4f7f\u7528\u4ee3\u7406\u670d\u52a1\u5668\u6216\u5982\u4f55\u5c06\u4ee3\u7406\u670d\u52a1\u5668\u4e0e Supernetting \u5173\u8054<\/h2>\n

          \u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u901a\u8fc7\u589e\u5f3a\u7f51\u7edc\u5b89\u5168\u6027\u548c\u6027\u80fd\u6765\u8865\u5145\u8d85\u7ea7\u7f51\u3002\u7ed3\u5408\u4f7f\u7528\u65f6\uff0c\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\uff1a<\/p>\n

            \n
          1. \n

            \u8d1f\u8f7d\u5747\u8861\uff1a<\/strong> \u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u8de8\u591a\u4e2a\u670d\u52a1\u5668\u5206\u914d\u4f20\u5165\u6d41\u91cf\uff0c\u4ece\u800c\u51cf\u5c11\u5404\u4e2a\u7f51\u6bb5\u4e0a\u7684\u8d1f\u8f7d\u5e76\u4f18\u5316\u7f51\u7edc\u6027\u80fd\u3002<\/p>\n<\/li>\n

          2. \n

            \u5b89\u5168\u6027\u548c\u533f\u540d\u6027\uff1a<\/strong> \u4ee3\u7406\u5145\u5f53\u7528\u6237\u548c\u4e92\u8054\u7f51\u4e4b\u95f4\u7684\u4e2d\u4ecb\uff0c\u63d0\u4f9b\u989d\u5916\u7684\u5b89\u5168\u6027\u548c\u533f\u540d\u6027\u3002\u5b83\u4eec\u53ef\u4ee5\u963b\u6b62\u6076\u610f\u6d41\u91cf\u5e76\u9632\u6b62\u76f4\u63a5\u66b4\u9732\u5185\u90e8\u7f51\u7edc\u5730\u5740\u3002<\/p>\n<\/li>\n

          3. \n

            \u5730\u7406\u5206\u5e03\uff1a<\/strong> \u901a\u8fc7\u5728\u4e0d\u540c\u5730\u7406\u4f4d\u7f6e\u90e8\u7f72\u4ee3\u7406\u670d\u52a1\u5668\uff0c\u7f51\u7edc\u7ba1\u7406\u5458\u53ef\u4ee5\u589e\u5f3a\u5185\u5bb9\u4ea4\u4ed8\u5e76\u51cf\u5c11\u4e0d\u540c\u5730\u533a\u7528\u6237\u7684\u5ef6\u8fdf\u3002<\/p>\n<\/li>\n<\/ol>\n

            \u76f8\u5173\u94fe\u63a5<\/h2>\n

            \u6709\u5173 Supernetting \u7684\u66f4\u591a\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u6d4f\u89c8\u4ee5\u4e0b\u8d44\u6e90\uff1a<\/p>\n

              \n
            1. RFC 1338 \u2013 \u8d85\u7ea7\u7f51\uff1a\u5730\u5740\u5206\u914d\u548c\u805a\u5408\u7b56\u7565<\/a><\/li>\n
            2. Cisco\uff1a\u4e86\u89e3 IP \u5bfb\u5740\u548c CIDR \u56fe\u8868<\/a><\/li>\n<\/ol>\n

              \u8bf7\u8bb0\u4f4f\uff0c\u8d85\u7ea7\u7f51\u7edc\u662f\u7f51\u7edc\u4f18\u5316\u7684\u5f3a\u5927\u5de5\u5177\uff0c\u4e86\u89e3\u5176\u539f\u7406\u53ef\u4ee5\u6781\u5927\u5730\u9020\u798f\u7f51\u7edc\u7ba1\u7406\u5458\u548c ISP\u3002<\/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\/cn\/wp-json\/wp\/v2\/wiki\/479200","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/479200\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media\/479201"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media?parent=479200"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}