{"id":476232,"date":"2023-08-09T07:26:52","date_gmt":"2023-08-09T07:26:52","guid":{"rendered":""},"modified":"2023-09-05T11:12:18","modified_gmt":"2023-09-05T11:12:18","slug":"circuit-level-gateway","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/cn\/wiki\/circuit-level-gateway\/","title":{"rendered":"\u7535\u8def\u7ea7\u7f51\u5173"},"content":{"rendered":"

\u7535\u8def\u7ea7\u7f51\u5173\u662f\u4e00\u79cd\u5728 OSI \u6a21\u578b\u7684\u4f20\u8f93\u5c42\u8fd0\u884c\u7684\u4ee3\u7406\u670d\u52a1\u5668\u3002\u5b83\u5145\u5f53\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u548c\u8fdc\u7a0b\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u4e2d\u4ecb\uff0c\u63d0\u4f9b\u989d\u5916\u7684\u5b89\u5168\u548c\u533f\u540d\u5c42\u3002\u4e0e\u5176\u4ed6\u7c7b\u578b\u7684\u4ee3\u7406\uff08\u4f8b\u5982\u5e94\u7528\u7a0b\u5e8f\u7ea7\u4ee3\u7406\u6216\u6570\u636e\u5305\u7ea7\u4ee3\u7406\uff09\u4e0d\u540c\uff0c\u7535\u8def\u7ea7\u7f51\u5173\u4e0d\u4f1a\u68c0\u67e5\u6570\u636e\u5305\u7684\u5185\u5bb9\uff0c\u800c\u662f\u5728\u5ba2\u6237\u7aef\u548c\u76ee\u6807\u4e4b\u95f4\u5efa\u7acb\u548c\u7ba1\u7406\u76f4\u63a5\u8fde\u63a5\uff08\u79f0\u4e3a\u7535\u8def\uff09\u670d\u52a1\u5668\u3002<\/p>\n

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\u7535\u8def\u7ea7\u7f51\u5173\u8fd0\u884c\u5728 OSI \u6a21\u578b\u7684\u4f20\u8f93\u5c42\uff08\u7b2c 4 \u5c42\uff09\uff0c\u4e3b\u8981\u5904\u7406 TCP\uff08\u4f20\u8f93\u63a7\u5236\u534f\u8bae\uff09\u8fde\u63a5\u3002\u5f53\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u901a\u8fc7\u7535\u8def\u7ea7\u7f51\u5173\u53d1\u8d77\u4e0e\u8fdc\u7a0b\u670d\u52a1\u5668\u7684\u8fde\u63a5\u65f6\uff0c\u7f51\u5173\u4f1a\u5efa\u7acb\u4e00\u6761\u7535\u8def\uff0c\u8be5\u7535\u8def\u662f\u5ba2\u6237\u7aef\u548c\u76ee\u6807\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u865a\u62df\u901a\u4fe1\u901a\u9053\u3002\u7136\u540e\uff0c\u7f51\u5173\u4ec5\u5728\u8fd9\u4e24\u4e2a\u7aef\u70b9\u4e4b\u95f4\u4e2d\u7ee7\u6570\u636e\uff0c\u800c\u4e0d\u68c0\u67e5\u6216\u66f4\u6539\u6570\u636e\u5305\u7684\u5185\u5bb9\u3002<\/p>\n

\u4e0e\u5176\u4ed6\u7c7b\u578b\u7684\u4ee3\u7406\uff08\u4f8b\u5982\u5e94\u7528\u7a0b\u5e8f\u7ea7\u7f51\u5173\u6216\u5728\u5e94\u7528\u7a0b\u5e8f\u5c42\uff08\u7b2c 7 \u5c42\uff09\u8fd0\u884c\u7684\u4ee3\u7406\u670d\u52a1\u5668\uff09\u76f8\u6bd4\uff0c\u7535\u8def\u7ea7\u7f51\u5173\u7f3a\u4e4f\u5185\u5bb9\u68c0\u67e5\uff0c\u56e0\u6b64\u8d44\u6e90\u5bc6\u96c6\u7a0b\u5ea6\u8f83\u4f4e\u3002\u7531\u4e8e\u7535\u8def\u7ea7\u7f51\u5173\u4ec5\u5904\u7406\u521d\u59cb\u8fde\u63a5\u5efa\u7acb\u548c\u62c6\u9664\uff0c\u56e0\u6b64\u901f\u5ea6\u66f4\u5feb\uff0c\u66f4\u9002\u5408\u9700\u8981\u9ad8\u6027\u80fd\u548c\u4f4e\u5ef6\u8fdf\u7684\u573a\u666f\u3002<\/p>\n

\u7535\u8def\u7ea7\u7f51\u5173\u7684\u5185\u90e8\u7ed3\u6784\u3002\u7535\u8def\u7ea7\u7f51\u5173\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/h2>\n

\u7535\u8def\u7ea7\u7f51\u5173\u7684\u5185\u90e8\u7ed3\u6784\u7531\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206\u7ec4\u6210\uff1a<\/p>\n

    \n
  1. \n

    \u8fde\u63a5\u7ba1\u7406\u5668<\/strong>\uff1a\u8d1f\u8d23\u5904\u7406\u4f20\u5165\u7684\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42\u5e76\u5efa\u7acb\u5230\u8fdc\u7a0b\u670d\u52a1\u5668\u7684\u7535\u8def\u3002<\/p>\n<\/li>\n

  2. \n

    \u5de1\u56de\u8d5b\u7ecf\u7406<\/strong>\uff1a\u7ba1\u7406\u7535\u8def\u7684\u751f\u547d\u5468\u671f\uff0c\u5305\u62ec\u8bbe\u7f6e\u3001\u62c6\u5378\u548c\u8d44\u6e90\u5206\u914d\u3002<\/p>\n<\/li>\n

  3. \n

    \u6570\u636e\u5305\u8f6c\u53d1\u5668<\/strong>\uff1a\u901a\u8fc7\u5df2\u5efa\u7acb\u7684\u7535\u8def\u5728\u5ba2\u6237\u7aef\u548c\u76ee\u6807\u670d\u52a1\u5668\u4e4b\u95f4\u4e2d\u7ee7\u6570\u636e\u5305\u3002<\/p>\n<\/li>\n

  4. \n

    \u5b89\u5168\u6a21\u5757<\/strong>\uff1a\u5b9e\u65bd\u5b89\u5168\u63aa\u65bd\u6765\u4fdd\u62a4\u901a\u8fc7\u7f51\u5173\u4f20\u8f93\u7684\u6570\u636e\u7684\u9690\u79c1\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<\/li>\n<\/ol>\n

    \u7535\u8def\u7ea7\u7f51\u5173\u7684\u5de5\u4f5c\u539f\u7406\u5982\u4e0b\uff1a<\/p>\n

      \n
    1. \n

      \u5f53\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u5411\u7f51\u5173\u53d1\u9001\u8fde\u63a5\u8bf7\u6c42\u65f6\uff0c\u8fde\u63a5\u7ba1\u7406\u5668\u63a5\u6536\u8be5\u8bf7\u6c42\u5e76\u68c0\u67e5\u6240\u8bf7\u6c42\u7684\u76ee\u6807\u670d\u52a1\u5668\u662f\u5426\u5df2\u5b58\u5728\u7535\u8def\u3002<\/p>\n<\/li>\n

    2. \n

      \u5982\u679c\u5b58\u5728\u7ebf\u8def\uff0c\u5219\u5ba2\u6237\u7aef\u901a\u8fc7\u8be5\u7ebf\u8def\u8fde\u63a5\u5230\u8fdc\u7a0b\u670d\u52a1\u5668\u3002\u5982\u679c\u6ca1\u6709\uff0c\u7ebf\u8def\u7ba1\u7406\u5668\u5c06\u521b\u5efa\u4e00\u4e2a\u65b0\u7ebf\u8def\u5e76\u5c06\u5176\u4e0e\u6240\u8bf7\u6c42\u7684\u76ee\u6807\u670d\u52a1\u5668\u5173\u8054\u3002<\/p>\n<\/li>\n

    3. \n

      \u4e00\u65e6\u7535\u8def\u5efa\u7acb\uff0c\u6570\u636e\u5305\u8f6c\u53d1\u5668\u5c31\u4f1a\u5728\u5ba2\u6237\u7aef\u548c\u76ee\u6807\u670d\u52a1\u5668\u4e4b\u95f4\u8f6c\u53d1\u6570\u636e\u5305\uff0c\u800c\u4e0d\u5206\u6790\u6570\u636e\u5305\u5185\u5bb9\u3002<\/p>\n<\/li>\n

    4. \n

      \u5f53\u5ba2\u6237\u7aef\u5173\u95ed\u8fde\u63a5\u6216\u7ecf\u8fc7\u4e00\u5b9a\u65f6\u95f4\u7684\u4e0d\u6d3b\u52a8\u540e\uff0c\u7535\u8def\u5c06\u88ab\u62c6\u9664\uff0c\u91ca\u653e\u6240\u6709\u5206\u914d\u7684\u8d44\u6e90\u3002<\/p>\n<\/li>\n<\/ol>\n

      \u7535\u8def\u7ea7\u7f51\u5173\u7684\u5173\u952e\u7279\u6027\u5206\u6790\u3002<\/h2>\n

      \u7535\u8def\u7ea7\u7f51\u5173\u7684\u4e3b\u8981\u7279\u6027\u5305\u62ec\uff1a<\/p>\n

        \n
      1. \n

        \u901f\u5ea6\u548c\u6027\u80fd<\/strong>\uff1a\u7535\u8def\u7ea7\u7f51\u5173\u7531\u4e8e\u5bf9\u6570\u636e\u5305\u5904\u7406\u7684\u53c2\u4e0e\u6709\u9650\uff0c\u56e0\u6b64\u53ef\u4ee5\u63d0\u4f9b\u66f4\u5feb\u7684\u6570\u636e\u4f20\u8f93\u548c\u66f4\u4f4e\u7684\u5ef6\u8fdf\u3002<\/p>\n<\/li>\n

      2. \n

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      3. \n

        \u8fde\u63a5\u6301\u4e45\u6027<\/strong>\uff1a\u4e00\u65e6\u5efa\u7acb\u4e86\u7535\u8def\uff0c\u6765\u81ea\u540c\u4e00\u5ba2\u6237\u7aef\u7684\u591a\u4e2a\u8bf7\u6c42\u5c31\u53ef\u4ee5\u901a\u8fc7\u540c\u4e00\u7535\u8def\u8fdb\u884c\u8def\u7531\uff0c\u4ece\u800c\u4fdd\u6301\u8fde\u63a5\u6301\u4e45\u6027\u3002<\/p>\n<\/li>\n

      4. \n

        \u53ef\u6269\u5c55\u6027<\/strong>\uff1a\u7535\u8def\u7ea7\u7f51\u5173\u5177\u6709\u9ad8\u5ea6\u53ef\u6269\u5c55\u6027\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e0d\u7ef4\u62a4\u5927\u91cf\u7684\u4f1a\u8bdd\u76f8\u5173\u4fe1\u606f\u3002<\/p>\n<\/li>\n

      5. \n

        \u5b89\u5168<\/strong>\uff1a\u5728\u4e0d\u68c0\u67e5\u6570\u636e\u5305\u5185\u5bb9\u7684\u540c\u65f6\uff0c\u7535\u8def\u7ea7\u7f51\u5173\u4ecd\u7136\u53ef\u4ee5\u5728\u4f20\u8f93\u5c42\u5b9e\u65bd\u5b89\u5168\u63aa\u65bd\uff0c\u4ee5\u4fdd\u62a4\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u6570\u636e\u3002<\/p>\n<\/li>\n<\/ol>\n

        \u7535\u8def\u7ea7\u7f51\u5173\u7684\u7c7b\u578b<\/p>\n

        \u6839\u636e\u5176\u64cd\u4f5c\u7279\u6027\u548c\u90e8\u7f72\u573a\u666f\uff0c\u7535\u8def\u7ea7\u7f51\u5173\u6709\u4e0d\u540c\u7c7b\u578b\u3002\u4e00\u4e9b\u5e38\u89c1\u7684\u7c7b\u578b\u5305\u62ec\uff1a<\/p>\n\n\n\n\n\n\n\n
        \u7c7b\u578b<\/strong><\/th>\n\u63cf\u8ff0<\/strong><\/th>\n<\/tr>\n<\/thead>\n
        \u5355\u7535\u8def<\/strong><\/td>\n\u57fa\u672c\u7535\u8def\u7ea7\u7f51\u5173\uff0c\u4e3a\u6bcf\u4e2a\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u8fde\u63a5\u5efa\u7acb\u5355\u4e2a\u7535\u8def\u3002<\/td>\n<\/tr>\n
        \u591a\u91cd\u7535\u8def<\/strong><\/td>\n\u5148\u8fdb\u7684\u7535\u8def\u7ea7\u7f51\u5173\uff0c\u5141\u8bb8\u5728\u540c\u4e00\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u8bbe\u7f6e\u591a\u4e2a\u7535\u8def\uff0c\u4ece\u800c\u63d0\u4f9b\u66f4\u597d\u7684\u6027\u80fd\u3002<\/td>\n<\/tr>\n
        \u6709\u72b6\u6001\u7535\u8def<\/strong><\/td>\n\u7535\u8def\u7ea7\u7f51\u5173\uff0c\u7ef4\u62a4\u6bcf\u4e2a\u7535\u8def\u7684\u72b6\u6001\u4fe1\u606f\uff0c\u4f18\u5316\u6570\u636e\u4f20\u8f93\u548c\u8fde\u63a5\u6301\u4e45\u6027\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        \u7535\u8def\u7ea7\u7f51\u5173\u7684\u4f7f\u7528\u65b9\u6cd5\u3001\u4f7f\u7528\u4e2d\u51fa\u73b0\u7684\u95ee\u9898\u53ca\u5176\u89e3\u51b3\u65b9\u6848\u3002<\/h2>\n

        \u7535\u8def\u7ea7\u7f51\u5173\u7684\u4f7f\u7528\u65b9\u6cd5\uff1a<\/p>\n

          \n
        1. \n

          \u533f\u540d\u548c\u9690\u79c1<\/strong>\uff1a\u7528\u6237\u53ef\u4ee5\u5229\u7528\u7535\u8def\u7ea7\u7f51\u5173\u533f\u540d\u6d4f\u89c8\u4e92\u8054\u7f51\uff0c\u56e0\u4e3a\u7f51\u5173\u4e2d\u7ee7\u6570\u636e\u800c\u4e0d\u4f1a\u5411\u76ee\u6807\u670d\u52a1\u5668\u6cc4\u9732\u5ba2\u6237\u7aef\u7684 IP \u5730\u5740\u3002<\/p>\n<\/li>\n

        2. \n

          \u7ed5\u8fc7\u9650\u5236<\/strong>\uff1a\u7535\u8def\u7ea7\u7f51\u5173\u53ef\u7528\u4e8e\u7ed5\u8fc7\u7f51\u7edc\u9650\u5236\u5e76\u901a\u8fc7\u4ece\u4e0d\u540c\u4f4d\u7f6e\u8fde\u63a5\u5230\u8fdc\u7a0b\u670d\u52a1\u5668\u6765\u8bbf\u95ee\u5730\u7406\u5c01\u9501\u7684\u5185\u5bb9\u3002<\/p>\n<\/li>\n

        3. \n

          \u8d1f\u8f7d\u5747\u8861<\/strong>\uff1a\u901a\u8fc7\u5efa\u7acb\u5230\u540c\u4e00\u76ee\u6807\u670d\u52a1\u5668\u7684\u591a\u4e2a\u7535\u8def\uff0c\u7535\u8def\u7ea7\u7f51\u5173\u53ef\u4ee5\u5206\u914d\u7f51\u7edc\u8d1f\u8f7d\uff0c\u63d0\u9ad8\u670d\u52a1\u5668\u6027\u80fd\u3002<\/p>\n<\/li>\n<\/ol>\n

          \u7535\u8def\u7ea7\u7f51\u5173\u4f7f\u7528\u76f8\u5173\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n

            \n
          1. \n

            \u5b89\u5168\u6027\u6709\u9650<\/strong>\uff1a\u7535\u8def\u7ea7\u7f51\u5173\u4e0d\u5bf9\u62a5\u6587\u8fdb\u884c\u68c0\u67e5\uff0c\u5b58\u5728\u5b89\u5168\u98ce\u9669\u3002\u5b9e\u65bd\u989d\u5916\u7684\u5b89\u5168\u63aa\u65bd\uff08\u4f8b\u5982\u52a0\u5bc6\u548c\u8eab\u4efd\u9a8c\u8bc1\uff09\u53ef\u4ee5\u7f13\u89e3\u6b64\u95ee\u9898\u3002<\/p>\n<\/li>\n

          2. \n

            \u5ef6\u8fdf\u589e\u52a0<\/strong>\uff1a\u867d\u7136\u4e0e\u5e94\u7528\u7a0b\u5e8f\u7ea7\u4ee3\u7406\u76f8\u6bd4\uff0c\u7535\u8def\u7ea7\u7f51\u5173\u63d0\u4f9b\u66f4\u597d\u7684\u6027\u80fd\uff0c\u4f46\u7531\u4e8e\u8fde\u63a5\u8bbe\u7f6e\u8fc7\u7a0b\uff0c\u5b83\u4eec\u53ef\u80fd\u4f1a\u5f15\u5165\u4e00\u4e9b\u5ef6\u8fdf\u3002\u4f7f\u7528\u6709\u6548\u7684\u7535\u8def\u7ba1\u7406\u7b97\u6cd5\u53ef\u4ee5\u51cf\u5c11\u5ef6\u8fdf\u3002<\/p>\n<\/li>\n

          3. \n

            \u517c\u5bb9\u6027\u95ee\u9898<\/strong>\uff1a\u7531\u4e8e\u7279\u5b9a\u7684\u7f51\u7edc\u914d\u7f6e\u6216\u534f\u8bae\uff0c\u67d0\u4e9b\u5e94\u7528\u7a0b\u5e8f\u548c\u670d\u52a1\u5668\u53ef\u80fd\u65e0\u6cd5\u4e0e\u7535\u8def\u7ea7\u7f51\u5173\u6b63\u5e38\u5de5\u4f5c\u3002\u5b9a\u5236\u7f51\u5173\u4ee5\u9002\u5e94\u6b64\u7c7b\u573a\u666f\u53ef\u4ee5\u89e3\u51b3\u517c\u5bb9\u6027\u95ee\u9898\u3002<\/p>\n<\/li>\n<\/ol>\n

            \u4ee5\u8868\u683c\u548c\u5217\u8868\u7684\u5f62\u5f0f\u5217\u51fa\u4e3b\u8981\u7279\u5f81\u4ee5\u53ca\u4e0e\u7c7b\u4f3c\u672f\u8bed\u7684\u5176\u4ed6\u6bd4\u8f83\u3002<\/h2>\n

            \u7535\u8def\u7ea7\u7f51\u5173\u4e0e\u5e94\u7528\u7ea7\u7f51\u5173\u5bf9\u6bd4\uff1a<\/p>\n\n\n\n\n\n\n\n\n
            \u65b9\u9762<\/strong><\/th>\n\u7535\u8def\u7ea7\u7f51\u5173<\/strong><\/th>\n\u5e94\u7528\u7ea7\u7f51\u5173<\/strong><\/th>\n<\/tr>\n<\/thead>\n
            \u64cd\u4f5c\u5c42<\/strong><\/td>\n\u5728 OSI \u6a21\u578b\u7684\u4f20\u8f93\u5c42\uff08\u7b2c 4 \u5c42\uff09\u8fd0\u884c\u3002<\/td>\n\u5728 OSI \u6a21\u578b\u7684\u5e94\u7528\u5c42\uff08\u7b2c 7 \u5c42\uff09\u8fd0\u884c\u3002<\/td>\n<\/tr>\n
            \u6570\u636e\u5305\u68c0\u67e5<\/strong><\/td>\n\u4e0d\u68c0\u67e5\u6570\u636e\u5305\u5185\u5bb9\uff0c\u4e2d\u7ee7\u6570\u636e\u800c\u4e0d\u8fdb\u884c\u66f4\u6539\u3002<\/td>\n\u68c0\u67e5\u5e76\u53ef\u80fd\u51fa\u4e8e\u5404\u79cd\u76ee\u7684\u4fee\u6539\u6570\u636e\u5305\u5185\u5bb9\u3002<\/td>\n<\/tr>\n
            \u8d44\u6e90\u4f7f\u7528\u60c5\u51b5<\/strong><\/td>\n\u7531\u4e8e\u6570\u636e\u5305\u5904\u7406\u6709\u9650\uff0c\u8d44\u6e90\u4f7f\u7528\u7387\u8f83\u4f4e\u3002<\/td>\n\u7531\u4e8e\u66f4\u6df1\u5165\u7684\u6570\u636e\u5305\u68c0\u67e5\u548c\u5904\u7406\uff0c\u8d44\u6e90\u5229\u7528\u7387\u66f4\u9ad8\u3002<\/td>\n<\/tr>\n
            \u8868\u73b0<\/strong><\/td>\n\u63d0\u4f9b\u66f4\u5feb\u7684\u6570\u636e\u4f20\u8f93\u548c\u66f4\u4f4e\u7684\u5ef6\u8fdf\u3002<\/td>\n\u53ef\u80fd\u4f1a\u5f15\u5165\u66f4\u9ad8\u7684\u5ef6\u8fdf\uff0c\u4f46\u63d0\u4f9b\u66f4\u591a\u529f\u80fd\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            \u4e0e\u7535\u8def\u7ea7\u7f51\u5173\u76f8\u5173\u7684\u672a\u6765\u524d\u666f\u548c\u6280\u672f\u3002<\/h2>\n

            \u7535\u8def\u7ea7\u7f51\u5173\u7684\u672a\u6765\u53ef\u80fd\u4f1a\u53d7\u5230\u7f51\u7edc\u6280\u672f\u548c\u5b89\u5168\u63aa\u65bd\u8fdb\u6b65\u7684\u5f71\u54cd\u3002\u4e00\u4e9b\u6f5c\u5728\u7684\u89c2\u70b9\u548c\u6280\u672f\u5305\u62ec\uff1a<\/p>\n

              \n
            1. \n

              \u6539\u8fdb\u7684\u5b89\u5168\u63aa\u65bd<\/strong>\uff1a\u672a\u6765\u7684\u7535\u8def\u7ea7\u7f51\u5173\u53ef\u80fd\u4f1a\u96c6\u6210\u66f4\u590d\u6742\u7684\u5b89\u5168\u529f\u80fd\uff0c\u4f8b\u5982\u57fa\u4e8e\u4eba\u5de5\u667a\u80fd\u7684\u5f02\u5e38\u68c0\u6d4b\u548c\u884c\u4e3a\u5206\u6790\uff0c\u4ee5\u589e\u5f3a\u6570\u636e\u4fdd\u62a4\u3002<\/p>\n<\/li>\n

            2. \n

              IPv6 \u91c7\u7528<\/strong>\uff1a\u968f\u7740\u5411 IPv6 \u8fc7\u6e21\u7684\u52bf\u5934\u5f3a\u52b2\uff0c\u7535\u8def\u7ea7\u7f51\u5173\u5c06\u9700\u8981\u540c\u65f6\u652f\u6301 IPv4 \u548c IPv6 \u534f\u8bae\uff0c\u4ee5\u786e\u4fdd\u4e0e\u6240\u6709\u7f51\u7edc\u7684\u517c\u5bb9\u6027\u3002<\/p>\n<\/li>\n

            3. \n

              \u4e0eSDN\u96c6\u6210<\/strong>\uff1a\u4e0e\u8f6f\u4ef6\u5b9a\u4e49\u7f51\u7edc (SDN) \u96c6\u6210\u53ef\u4ee5\u63d0\u4f9b\u52a8\u6001\u7535\u8def\u914d\u7f6e\u548c\u66f4\u597d\u7684\u6d41\u91cf\u7ba1\u7406\uff0c\u4ece\u800c\u63d0\u9ad8\u6027\u80fd\u548c\u53ef\u6269\u5c55\u6027\u3002<\/p>\n<\/li>\n<\/ol>\n

              \u5982\u4f55\u4f7f\u7528\u4ee3\u7406\u670d\u52a1\u5668\u6216\u5982\u4f55\u5c06\u4ee3\u7406\u670d\u52a1\u5668\u4e0e\u7535\u8def\u7ea7\u7f51\u5173\u5173\u8054\u3002<\/h2>\n

              \u4ee3\u7406\u670d\u52a1\u5668\u548c\u7535\u8def\u7ea7\u7f51\u5173\u53ef\u4ee5\u534f\u540c\u5de5\u4f5c\uff0c\u4ee5\u589e\u5f3a\u7f51\u7edc\u5b89\u5168\u6027\u5e76\u63d0\u4f9b\u989d\u5916\u7684\u597d\u5904\u3002\u4ee3\u7406\u670d\u52a1\u5668\uff08\u4f8b\u5982 OneProxy\uff09\u5145\u5f53\u5ba2\u6237\u7aef\u548c\u7535\u8def\u7ea7\u7f51\u5173\u4e4b\u95f4\u7684\u4e2d\u4ecb\u3002\u4ed6\u4eec\u80fd\uff1a<\/p>\n

                \n
              1. \n

                \u6dfb\u52a0\u989d\u5916\u7684\u533f\u540d\u5c42<\/strong>\uff1a\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u5bf9\u7535\u8def\u7ea7\u7f51\u5173\u9690\u85cf\u5ba2\u6237\u7aef\u7684\u539f\u59cb\u6e90IP\u5730\u5740\uff0c\u8fdb\u4e00\u6b65\u589e\u5f3a\u533f\u540d\u6027\u3002<\/p>\n<\/li>\n

              2. \n

                \u8fc7\u6ee4\u548c\u7f13\u5b58<\/strong>\uff1a\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u7f13\u5b58\u9891\u7e41\u8bf7\u6c42\u7684\u5185\u5bb9\uff0c\u51cf\u5c11\u7535\u8def\u7ea7\u7f51\u5173\u7684\u8d1f\u8f7d\u5e76\u7f29\u77ed\u54cd\u5e94\u65f6\u95f4\u3002<\/p>\n<\/li>\n

              3. \n

                \u8bbf\u95ee\u63a7\u5236<\/strong>\uff1a\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u5b9e\u65bd\u8bbf\u95ee\u63a7\u5236\u7b56\u7565\uff0c\u6839\u636e\u5b9a\u4e49\u7684\u89c4\u5219\u5141\u8bb8\u6216\u62d2\u7edd\u7279\u5b9a\u5ba2\u6237\u7aef\u4f7f\u7528\u7535\u8def\u7ea7\u7f51\u5173\u3002<\/p>\n<\/li>\n<\/ol>\n

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

                \u6709\u5173\u7535\u8def\u7ea7\u7f51\u5173\u53ca\u5176\u5e94\u7528\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u8d44\u6e90\uff1a<\/p>\n

                  \n
                1. \n

                  \u4e86\u89e3\u7535\u8def\u7ea7\u7f51\u5173 \u2013 \u601d\u79d1<\/a><\/p>\n<\/li>\n

                2. \n

                  \u4ee3\u7406\u670d\u52a1\u5668\u7c7b\u578b \u2013 TechTarget<\/a><\/p>\n<\/li>\n

                3. \n

                  \u7f51\u7edc\u5b89\u5168\uff1a\u7535\u8def\u7ea7\u7f51\u5173 \u2013 Techopedia<\/a><\/p>\n<\/li>\n

                4. \n

                  \u7535\u8def\u7ea7\u7f51\u5173\u7684\u4f18\u52bf \u2013 TechRepublic<\/a><\/p>\n<\/li>\n<\/ol>\n

                  \u8bf7\u8bb0\u4f4f\uff0c\u5728\u5b9e\u65bd\u4efb\u4f55\u4ee3\u7406\u670d\u52a1\u5668\u6216\u7535\u8def\u7ea7\u7f51\u5173\u89e3\u51b3\u65b9\u6848\u4e4b\u524d\uff0c\u59cb\u7ec8\u8981\u8003\u8651\u7f51\u7edc\u7684\u5177\u4f53\u8981\u6c42\u548c\u5b89\u5168\u9700\u6c42\u3002<\/p>","protected":false},"featured_media":476233,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476232","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Circuit-level gateway<\/mark>","faq_items":[{"question":"What is a Circuit-level gateway?","answer":"

                  A Circuit-level gateway is a type of proxy server that operates at the transport layer of the OSI model. It establishes and manages direct connections, known as circuits, between client applications and remote servers. Unlike other proxies, it doesn't inspect packet contents, offering faster performance and greater anonymity.<\/p>"},{"question":"How does a Circuit-level gateway work?","answer":"

                  When a client application sends a connection request, the Circuit-level gateway sets up a circuit to the destination server. Data packets are relayed between the client and server through this circuit without content inspection. Once the connection is closed or inactive, the circuit is torn down.<\/p>"},{"question":"What are the key features of Circuit-level gateways?","answer":"

                  Key features include speed and performance due to limited packet processing, anonymity, connection persistence, scalability, and the ability to implement security measures at the transport layer.<\/p>"},{"question":"What are the different types of Circuit-level gateways?","answer":"

                  There are three common types: single circuit gateways, multiple circuit gateways, and stateful circuit gateways. Each offers specific advantages, such as better performance or connection optimization.<\/p>"},{"question":"How can Circuit-level gateways be used?","answer":"

                  Circuit-level gateways are used to browse the internet anonymously, bypass restrictions to access geo-blocked content, and for load balancing by distributing network load across multiple circuits.<\/p>"},{"question":"What are the challenges and solutions related to Circuit-level gateway usage?","answer":"

                  Challenges include limited security due to no packet inspection and potential compatibility issues. Solutions involve implementing additional security measures like encryption and customization to address compatibility problems.<\/p>"},{"question":"How does a Circuit-level gateway compare to an Application-level gateway?","answer":"

                  Circuit-level gateways operate at the transport layer and don't inspect packet contents, while Application-level gateways operate at the application layer and inspect packets. Circuit-level gateways have lower resource usage but may introduce some latency.<\/p>"},{"question":"What are the future perspectives for Circuit-level gateways?","answer":"

                  The future may see improved security measures, IPv6 adoption, and integration with Software-Defined Networking (SDN) for dynamic circuit provisioning and traffic management.<\/p>"},{"question":"How do proxy servers work with Circuit-level gateways?","answer":"

                  Proxy servers can add an extra layer of anonymity, implement filtering and caching, and apply access control policies to enhance the functionality and security of Circuit-level gateways.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/476232","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\/476232\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media\/476233"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media?parent=476232"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}