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wp-block-quote-is-layout-flow\">\n<p>\u78b0\u649e\u907f\u514d\u7b97\u6cd5<\/p>\n<\/blockquote>\n\n\n\n<p>\u7531\u4e8e\u4ee5\u592a\u7f51\u4e2d\u7684\u6240\u6709\u7684\u4e3b\u673a\u5171\u4eab\u4e00\u4e2a\u901a\u4fe1\u4fe1\u9053\uff0c\u56e0\u6b64\u5728\u540c\u4e00\u65f6\u523b\u53ea\u5141\u8bb8\u6709\u4e00\u53f0\u4e3b\u673a\u53d1\u9001\u6570\u636e\uff0c\u5426\u5219\u5404\u4e2a\u4e3b\u673a\u53d1\u9001\u7684\u6570\u636e\u5c31\u4f1a\u76f8\u4e92\u5e72\u6270\u3002\u7ad9\u5728\u7cfb\u7edf\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u8fd9\u91cc\u5404\u4e2a\u4e3b\u673a\u6240\u5171\u4eab\u7684\u901a\u4fe1\u4fe1\u9053\u5c31\u662f\u4e00\u79cd\u4e34\u754c\u8d44\u6e90\uff0c\u8fd9\u4e2a\u4e34\u754c\u8d44\u6e90\u540c\u4e00\u65f6\u523b\u53ea\u5141\u8bb8\u4e00\u53f0\u4e3b\u673a\u4f7f\u7528\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u4e8e\u8fd9\u4e2a\u95ee\u9898\uff0c\u4ee5\u592a\u7f51\u7684\u505a\u6cd5\u5c31\u662f\u5148\u4e0d\u9650\u5236\u5404\u4e2a\u4e3b\u673a\u53d1\u9001\u6570\u636e\u7684\u80fd\u529b\uff0c\u5c40\u57df\u7f51\u4e2d\u7684\u6bcf\u4e2a\u4e3b\u673a\u60f3\u53d1\u6570\u636e\u7684\u65f6\u5019\u76f4\u63a5\u53d1\u5c31\u884c\u4e86\uff0c\u4f46\u662f\u53ea\u8981\u53d1\u9001\u51fa\u53bb\u7684\u6570\u636e\u4e0e\u5176\u4ed6\u4e3b\u673a\u53d1\u9001\u7684\u6570\u636e\u4ea7\u751f\u4e86\u78b0\u649e\uff0c\u90a3\u5c31\u5f97\u6267\u884c\u78b0\u649e\u907f\u514d\u7b97\u6cd5\u3002<\/li>\n\n\n\n<li>\u6240\u8c13\u7684\u78b0\u649e\u907f\u514d\u7b97\u6cd5\u5c31\u662f\uff0c\u5f53\u4e3b\u673a\u53d1\u9001\u51fa\u53bb\u7684\u6570\u636e\u4ea7\u751f\u78b0\u649e\u65f6\uff0c\u8be5\u4e3b\u673a\u9700\u8981\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u540e\u518d\u8fdb\u884c\u6570\u636e\u91cd\u53d1\uff0c\u5728\u4e3b\u673a\u7b49\u5f85\u7684\u65f6\u5019\u5c31\u80fd\u591f\u5c31\u80fd\u591f\u5c3d\u53ef\u80fd\u8ba9\u5c40\u57df\u7f51\u5f53\u4e2d\u7684\u6570\u636e\u6d88\u6563\u3002<\/li>\n\n\n\n<li>\u4ee5\u592a\u7f51\u901a\u4fe1\u7684\u539f\u7406\u5c31\u50cf\u73b0\u5b9e\u751f\u6d3b\u4e2d\u5f00\u4f1a\u4e00\u6837\uff0c\u5728\u5f00\u4f1a\u8fc7\u7a0b\u4e2d\u540c\u4e00\u65f6\u523b\u53ea\u5141\u8bb8\u4e00\u4e2a\u4eba\u53d1\u8a00\uff0c\u5982\u679c\u4e24\u4e2a\u4eba\u7a81\u7136\u540c\u65f6\u8bf4\u8bdd\uff0c\u90a3\u4e48\u53cc\u65b9\u90fd\u4f1a\u6709\u793c\u8c8c\u7684\u7b49\u5f85\u522b\u4eba\u5148\u8bf4\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u4ee5\u592a\u7f51\u4e2d\u4e3b\u673a\u53d1\u9001\u7684\u6570\u636e\u4ea7\u751f\u78b0\u649e\u540e\u8be5\u4e3b\u673a\u4f1a\u6267\u884c\u78b0\u649e\u907f\u514d\u7b97\u6cd5\uff0c\u6240\u4ee5\u6211\u4eec\u8bf4\u4ee5\u592a\u7f51\u662f\u57fa\u4e8e\u78b0\u649e\u533a\u548c\u78b0\u649e\u68c0\u6d4b\u7684\u5c40\u57df\u7f51\u901a\u4fe1\u6807\u51c6\u3002<\/p>\n\n\n\n<p>\u78b0\u649e\u907f\u514d\u7b97\u6cd5\u5c31\u662f\u4e3b\u673a\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u540e\u91cd\u65b0\u53d1\u9001\u6570\u636e\uff0c\u56e0\u6b64\u4ee5\u592a\u7f51\u5e95\u5c42\u4e5f\u6709\u91cd\u4f20\u673a\u5236\uff0c\u53ea\u4e0d\u8fc7\u4ee5\u592a\u7f51\u7684\u91cd\u4f20\u673a\u5236\u53ea\u662f\u4e3a\u4e86\u4fdd\u8bc1\u5c06\u6570\u636e\u4ece\u5c40\u57df\u7f51\u4e2d\u7684\u4e00\u53f0\u4e3b\u673a\u53d1\u9001\u5230\u53e6\u4e00\u53f0\u4e3b\u673a\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4ee4\u724c\u73af\u7f51<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ee4\u724c\u73af\u7f51\uff08Token-ring network\uff09\u7684\u4f20\u8f93\u65b9\u6cd5\u5728\u7269\u7406\u4e0a\u91c7\u7528\u4e86\u661f\u5f62\u62d3\u6251\u7ed3\u6784\uff0c\u4f46\u903b\u8f91\u4e0a\u662f\u73af\u5f62\u62d3\u6251\u7ed3\u6784\u3002<\/li>\n\n\n\n<li>\u4ee4\u724c\u73af\u7f51\u7684\u901a\u4fe1\u4f20\u8f93\u4ecb\u8d28\u53ef\u4ee5\u662f\u65e0\u5c4f\u853d\u53cc\u7ede\u7ebf\u3001\u5c4f\u853d\u53cc\u7ede\u7ebf\u548c\u5149\u7ea4\u7b49\u3002<\/li>\n\n\n\n<li>\u4ee4\u724c\u73af\u7f51\u4e2d\u5404\u8282\u70b9\u95f4\u91c7\u7528\u591a\u7ad9\u8bbf\u95ee\u90e8\u4ef6\uff08Multistation Access Unit\uff0cMAU\uff09\u8fde\u63a5\u5728\u4e00\u8d77\uff0cMAU\u662f\u4e00\u79cd\u4e13\u4e1a\u5316\u96c6\u7ebf\u5668\uff0c\u7528\u6765\u56f4\u7ed5\u5de5\u4f5c\u7ad9\u8ba1\u7b97\u673a\u7684\u73af\u8def\u8fdb\u884c\u4f20\u8f93\u3002<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/7cefbf7ae2c74ba1941d10e607e3c960.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/7cefbf7ae2c74ba1941d10e607e3c960.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u5728\u4ee4\u724c\u73af\u7f51\u4e2d\u6709\u4e00\u79cd\u4e13\u95e8\u7684\u5e27\u79f0\u4e3a\u201c\u4ee4\u724c\u201d\uff0c\u8fd9\u4e2a\u201c\u4ee4\u724c\u201d\u4f1a\u5728\u73af\u8def\u4e0a\u6301\u7eed\u5730\u4f20\u8f93\uff0c\u53ea\u6709\u62ff\u5230\u201c\u4ee4\u724c\u201d\u7684\u4e3b\u673a\u624d\u80fd\u53d1\u9001\u6570\u636e\uff0c\u56e0\u6b64\u53d1\u9001\u51fa\u53bb\u7684\u6570\u636e\u4e0d\u4f1a\u53d1\u751f\u78b0\u649e\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ee4\u724c\u73af\u7f51\u5f53\u4e2d\u7684\u201c\u4ee4\u724c\u201d\u5c31\u50cf\u7cfb\u7edf\u5f53\u4e2d\u7528\u4e8e\u4fdd\u62a4\u4e34\u754c\u8d44\u6e90\u7684\u4e92\u65a5\u9501\u4e00\u6837\uff0c\u201c\u4ee4\u724c\u201d\u4e0e\u4e92\u65a5\u9501\u4e00\u6837\u4e5f\u6709\u201c\u5fd9\u201d\u548c\u201c\u95f2\u201d\u4e24\u79cd\u72b6\u6001\uff0c\u201c\u5fd9\u201d\u8868\u793a\u4ee4\u724c\u5df2\u7ecf\u88ab\u5360\u7528\uff0c\u800c\u201c\u95f2\u201d\u5219\u8868\u793a\u4ee4\u724c\u6ca1\u6709\u88ab\u5360\u7528\u3002<\/li>\n\n\n\n<li>\u60f3\u8981\u53d1\u9001\u6570\u636e\u7684\u8ba1\u7b97\u673a\u5fc5\u987b\u9996\u5148\u68c0\u6d4b\u5230\u201c\u95f2\u201d\u4ee4\u724c\uff0c\u5e76\u5c06\u5176\u7f6e\u4e3a\u201c\u5fd9\u201d\u72b6\u6001\uff0c\u7136\u540e\u624d\u53ef\u4ee5\u53d1\u9001\u6570\u636e\uff0c\u8fd9\u5c31\u548c\u7533\u8bf7\u4e92\u65a5\u9501\u7684\u8fc7\u7a0b\u5f88\u50cf\u3002<\/li>\n\n\n\n<li>\u6b64\u5916\uff0c\u7531\u4e8e\u201c\u4ee4\u724c\u201d\u5728\u7f51\u73af\u4e0a\u662f\u6309\u987a\u5e8f\u4f9d\u6b21\u4f20\u9012\u7684\uff0c\u56e0\u6b64\u5bf9\u4e8e\u6240\u6709\u5165\u7f51\u7684\u8ba1\u7b97\u673a\u800c\u8a00\uff0c\u5b83\u4eec\u83b7\u53d6\u4ee4\u724c\u7684\u673a\u4f1a\u90fd\u662f\u76f8\u7b49\u7684\uff0c\u56e0\u6b64\u4e0d\u4f1a\u9020\u6210\u67d0\u53f0\u4e3b\u673a\u53d1\u9001\u6570\u636e\u7684\u9965\u997f\u95ee\u9898\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ee5\u592a\u7f51\u5e27\u683c\u5f0f<\/h3>\n\n\n\n<p>\u4ee5\u592a\u7f51\u5e27\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/29aaed9618c74acda925cc954a997916.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/29aaed9618c74acda925cc954a997916.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6e90\u5730\u5740\u548c\u76ee\u7684\u5730\u5740\u662f\u6307\u7f51\u5361\u7684\u786c\u4ef6\u5730\u5740\uff08\u4e5f\u53ebMAC\u5730\u5740\uff09\uff0c\u957f\u5ea6\u662f48\u4f4d\uff0c\u662f\u5728\u7f51\u5361\u51fa\u5382\u65f6\u56fa\u5316\u7684\u3002<\/li>\n\n\n\n<li>\u5e27\u534f\u8bae\u7c7b\u578b\u5b57\u6bb5\u6709\u4e09\u79cd\u503c\uff0c\u5206\u522b\u5bf9\u5e94IP\u534f\u8bae\u3001ARP\u534f\u8bae\u548cRARP\u534f\u8bae\u3002<\/li>\n\n\n\n<li>\u5e27\u672b\u5c3e\u662fCRC\u6548\u9a8c\u7801\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>MAC\u5e27\u662f\u5982\u4f55\u5c06\u62a5\u5934\u4e0e\u6709\u6548\u8f7d\u8377\u8fdb\u884c\u5206\u79bb\u7684\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>\u4ee5\u592a\u7f51MAC\u5e27\u7684\u5e27\u5934\u548c\u5e27\u5c3e\u90fd\u662f\u56fa\u5b9a\u957f\u5ea6\u7684\uff0c\u56e0\u6b64\u5f53\u5e95\u5c42\u6536\u5230\u4e00\u4e2aMAC\u5e27\u540e\uff0c\u76f4\u63a5\u63d0\u53d6\u51faMAC\u5e27\u5f53\u4e2d\u56fa\u5b9a\u957f\u5ea6\u7684\u5e27\u5934\u548c\u5e27\u5c3e\uff0c\u6b64\u65f6\u5269\u4e0b\u7684\u5c31\u662f\u6709\u6548\u8f7d\u8377\u4e86\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>MAC\u5e27\u5982\u4f55\u51b3\u5b9a\u5c06\u6709\u6548\u8f7d\u8377\u4ea4\u4ed8\u7ed9\u4e0a\u5c42\u7684\u54ea\u4e00\u4e2a\u534f\u8bae\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>\u4ee5\u592a\u7f51MAC\u5e27\u5bf9\u5e94\u7684\u4e0a\u5c42\u534f\u8bae\u4e0d\u6b62\u4e00\u79cd\uff0c\u56e0\u6b64\u5728\u5c06MAC\u5e27\u7684\u62a5\u5934\u548c\u6709\u6548\u8f7d\u8377\u5206\u79bb\u540e\uff0c\u8fd8\u9700\u8981\u786e\u5b9a\u5e94\u8be5\u5c06\u5206\u79bb\u51fa\u6765\u7684\u6709\u6548\u8f7d\u8377\u4ea4\u4ed8\u7ed9\u4e0a\u5c42\u7684\u54ea\u4e00\u4e2a\u534f\u8bae\u3002<\/p>\n\n\n\n<p>\u5728MAC\u5e27\u7684\u5e27\u5934\u5f53\u4e2d\u67092\u4e2a\u5b57\u8282\u7684\u7c7b\u578b\u5b57\u6bb5\uff0c\u56e0\u6b64\u5728\u5206\u79bb\u51fa\u62a5\u5934\u548c\u6709\u6548\u8f7d\u8377\u540e\uff0c\u6839\u636e\u8be5\u5b57\u6bb5\u5c06\u6709\u6548\u8f7d\u8377\u4ea4\u4ed8\u7ed9\u5bf9\u5e94\u7684\u4e0a\u5c42\u534f\u8bae\u5373\u53ef\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e3e\u4e2a\u4f8b\u5b50<\/p>\n<\/blockquote>\n\n\n\n<p>\u5047\u8bbe\u5c40\u57df\u7f51\u5f53\u4e2d\u7684\u4e3b\u673aA\u60f3\u8981\u5c06IP\u6570\u636e\u62a5\u53d1\u9001\u7ed9\u540c\u4e00\u5c40\u57df\u7f51\u5f53\u4e2d\u7684\u4e3b\u673aB\uff0c\u90a3\u4e48\u4e3b\u673aA\u5c01\u88c5MAC\u5e27\u5f53\u4e2d\u7684\u76ee\u7684\u5730\u5740\u5c31\u662f\u4e3b\u673aB\u7684MAC\u5730\u5740\uff0c\u6e90\u5730\u5740\u5c31\u662f\u4e3b\u673aA\u7684MAC\u5730\u5740\uff0c\u800c\u5e27\u534f\u8bae\u7684\u7c7b\u578b\u5bf9\u5e94\u5c31\u662f0800\uff0c\u7d27\u63a5\u7740\u5c31\u662f\u8981\u53d1\u9001\u7684IP\u6570\u636e\u62a5\uff0c\u5e27\u5c3e\u90e8\u5206\u5bf9\u5e94\u5c31\u662fCRC\u6821\u9a8c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/e582def7f62b43c5848292e11aaccd54.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/e582def7f62b43c5848292e11aaccd54.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u5f53\u4e3b\u673aA\u5c06\u8be5MAC\u5e27\u53d1\u9001\u5230\u5c40\u57df\u7f51\u5f53\u4e2d\u540e\uff0c\u5c40\u57df\u7f51\u5f53\u4e2d\u7684\u6240\u6709\u4e3b\u673a\u90fd\u53ef\u4ee5\u6536\u5230\u8fd9\u4e2aMAC\u5e27\uff0c\u5305\u62ec\u4e3b\u673aA\u81ea\u5df1\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e3b\u673aA\u6536\u5230\u8be5MAC\u5e27\u540e\uff0c\u53ef\u4ee5\u5bf9\u6536\u5230\u7684MAC\u5e27\u8fdb\u884cCRC\u6821\u9a8c\uff0c\u5982\u679c\u6821\u9a8c\u5931\u8d25\u5219\u8bf4\u660e\u6570\u636e\u53d1\u9001\u8fc7\u7a0b\u4e2d\u4ea7\u751f\u4e86\u78b0\u649e\uff0c\u6b64\u65f6\u4e3b\u673aA\u5c31\u4f1a\u6267\u884c\u78b0\u649e\u907f\u514d\u7b97\u6cd5\uff0c\u540e\u7eed\u8fdb\u884cMAC\u5e27\u91cd\u53d1\u3002<\/li>\n\n\n\n<li>\u4e3b\u673aB\u6536\u5230\u8be5MAC\u5e27\u540e\uff0c\u63d0\u53d6\u51faMAC\u5e27\u5f53\u4e2d\u7684\u76ee\u7684\u5730\u5740\uff0c\u53d1\u73b0\u8be5\u76ee\u7684\u5730\u5740\u4e0e\u81ea\u5df1\u7684MAC\u5730\u5740\u76f8\u540c\uff0c\u4e8e\u662f\u5728CRC\u6821\u9a8c\u6210\u529f\u540e\u5c31\u4f1a\u5c06\u6709\u6548\u8f7d\u8377\u4ea4\u4ed8\u7ed9\u4e0a\u5c42IP\u5c42\u8fdb\u884c\u8fdb\u4e00\u6b65\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u5c40\u57df\u7f51\u4e2d\u7684\u5176\u4ed6\u4e3b\u673a\u6536\u5230\u8be5MAC\u5e27\u540e\uff0c\u4e5f\u4f1a\u63d0\u53d6\u51faMAC\u5e27\u5f53\u4e2d\u7684\u76ee\u7684\u5730\u5740\uff0c\u4f46\u53d1\u73b0\u8be5\u76ee\u7684\u5730\u5740\u4e0e\u81ea\u5df1\u7684MAC\u5730\u5740\u4e0d\u5339\u914d\uff0c\u4e8e\u662f\u5c31\u4f1a\u76f4\u63a5\u5c06\u8fd9\u4e2aMAC\u5e27\u4e22\u5f03\u6389\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u5f53\u5e95\u5c42\u6536\u5230\u4e00\u4e2aMAC\u5e27\u540e\uff0c\u4f1a\u6839\u636eMAC\u5e27\u5f53\u4e2d\u7684\u76ee\u7684\u5730\u5740\u6765\u5224\u65ad\u8be5MAC\u5e27\u662f\u5426\u662f\u53d1\u7ed9\u81ea\u5df1\u7684\uff0c\u5982\u679c\u662f\u53d1\u9001\u7ed9\u81ea\u5df1\u7684\u5219\u4f1a\u518d\u5bf9\u5176\u8fdb\u884cCRC\u6821\u9a8c\uff0c\u5982\u679c\u6821\u9a8c\u6210\u529f\u5219\u4f1a\u6839\u636e\u8be5MAC\u5e27\u7684\u5e27\u534f\u8bae\u7c7b\u578b\uff0c\u5c06\u8be5MAC\u4ea4\u4ed8\u7ed9\u5bf9\u5e94\u7684\u4e0a\u5c42\u534f\u8bae\u8fdb\u884c\u5904\u7406\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8ba4\u8bc6MAC\u5730\u5740<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>MAC\u5730\u5740\u7528\u6765\u8bc6\u522b\u6570\u636e\u94fe\u8def\u5c42\u4e2d\u76f8\u8fde\u7684\u8282\u70b9\u3002<\/li>\n\n\n\n<li>\u957f\u5ea6\u4f4d48\u4f4d\uff0c\u53736\u4e2a\u5b57\u8282\uff0c\u4e00\u822c\u752816\u8fdb\u5236\u6570\u5b57\u52a0\u4e0a\u5192\u53f7\u7684\u5f62\u5f0f\u6765\u8868\u793a\uff0c\u4f8b\u5982\uff1a08\uff1a00\uff1a27\uff1a03\uff1afb\uff1a19\u3002<\/li>\n\n\n\n<li>\u5728\u7f51\u5361\u51fa\u5382\u65f6\u5c31\u786e\u5b9a\u4e86\uff0c\u4e0d\u80fd\u4fee\u6539\uff0cMAC\u5730\u5740\u901a\u5e38\u662f\u552f\u4e00\u7684\uff08\u865a\u62df\u673a\u4e2d\u7684MAC\u5730\u5740\u4e0d\u662f\u771f\u5b9e\u7684MAC\u5730\u5740\uff0c\u53ef\u80fd\u4f1a\u51b2\u7a81\uff1b\u4e5f\u6709\u4e9b\u7f51\u5361\u652f\u6301\u7528\u6237\u914d\u7f6eMAC\u5730\u5740\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7<code>ifconfig<\/code>\u547d\u4ee4\u6765\u67e5\u770b\u6211\u4eec\u7684MAC\u5730\u5740\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/d9aa7637248c4a0ab0e337af5747ae84.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/d9aa7637248c4a0ab0e337af5747ae84.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<pre class=\"wp-block-code\"><code>\u6ce8\uff1aMAC\u5730\u5740\u524d\u9762\u7684\u5355\u8bcdether\u5c31\u662f\u201c\u4ee5\u592a\u201d\u7684\u610f\u601d\u3002<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5bf9\u6bd4\u7406\u89e3MAC\u5730\u5740\u548cIP\u5730\u5740<\/h3>\n\n\n\n<p>\u5b9e\u9645\u6570\u636e\u5728\u8def\u7531\u8fc7\u7a0b\u4e2d\u4f1a\u5b58\u5728\u4e24\u5957\u5730\u5740\uff0c\u4e00\u5957\u662f\u6e90IP\u5730\u5740\u548c\u76ee\u7684IP\u5730\u5740\uff0c\u8fd8\u6709\u4e00\u5957\u662f\u6e90MAC\u5730\u5740\u548c\u76ee\u7684MAC\u5730\u5740\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>IP\u5730\u5740\u63cf\u8ff0\u7684\u662f\u8def\u9014\u603b\u4f53\u7684\u8d77\u70b9\u548c\u7ec8\u70b9\u3002<\/li>\n\n\n\n<li>MAC\u5730\u5740\u63cf\u8ff0\u7684\u662f\u8def\u9014\u4e0a\u7684\u6bcf\u4e00\u4e2a\u533a\u95f4\u7684\u8d77\u70b9\u548c\u7ec8\u70b9\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6bd4\u5982\u505a\u516c\u4ea4\u8f66\u65f6\uff0c\u6e90IP\u5730\u5740\u5c31\u662f\u6211\u4eec\u4e0a\u8f66\u7684\u7ad9\u70b9\uff0c\u76ee\u7684IP\u5730\u5740\u5c31\u662f\u6211\u4eec\u6700\u7ec8\u8981\u4e0b\u8f66\u7684\u7ad9\u70b9\uff0c\u800c\u6e90MAC\u5730\u5740\u5c31\u662f\u516c\u4ea4\u8f66\u4e0a\u4e00\u4e2a\u5df2\u7ecf\u5230\u8fbe\u7684\u7ad9\u70b9\uff0c\u76ee\u7684MAC\u5730\u5740\u5c31\u662f\u516c\u4ea4\u8f66\u4e0b\u4e00\u4e2a\u5c06\u8981\u5230\u8fbe\u7684\u7ad9\u70b9\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\u6570\u636e\u5728\u8def\u7531\u8fc7\u7a0b\u4e2d\uff0c\u6e90IP\u5730\u5740\u548c\u76ee\u7684IP\u5730\u5740\u53ef\u4ee5\u7406\u89e3\u6210\u662f\u4e0d\u4f1a\u53d8\u5316\u7684\uff0c\u800c\u6570\u636e\u6bcf\u8fdb\u884c\u4e00\u8df3\u540e\u5176\u6e90MAC\u5730\u5740\u548c\u76ee\u7684MAC\u5730\u5740\u90fd\u4f1a\u53d8\u5316\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u6ce8\uff1a\u5b9e\u9645\u6570\u636e\u5728\u8def\u7531\u8fc7\u7a0b\u4e2d\uff0c\u6e90IP\u5730\u5740\u548c\u76ee\u7684IP\u5730\u5740\u4e5f\u53ef\u80fd\u4f1a\u53d1\u751f\u53d8\u5316\u3002\uff08NAT\u6280\u672f\uff09<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u8ba4\u8bc6MTU<\/h3>\n\n\n\n<p>MTU\uff08Maximum Transmission Unit\uff0c\u6700\u5927\u4f20\u8f93\u5355\u5143\uff09\u63cf\u8ff0\u7684\u662f\u5e95\u5c42\u6570\u636e\u5e27\u4e00\u6b21\u6700\u591a\u53ef\u4ee5\u53d1\u9001\u7684\u6570\u636e\u91cf\uff0c\u8fd9\u4e2a\u9650\u5236\u662f\u4e0d\u540c\u7684\u6570\u636e\u94fe\u8def\u5c42\u5bf9\u5e94\u7684\u7269\u7406\u5c42\u4ea7\u751f\u7684\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ee5\u592a\u7f51\u5bf9\u5e94MTU\u7684\u503c\u4e00\u822c\u662f1500\u5b57\u8282\uff0c\u4e0d\u540c\u7684\u7f51\u7edc\u7c7b\u578b\u6709\u4e0d\u540c\u7684MTU\uff0c\u5982\u679c\u4e00\u6b21\u8981\u53d1\u9001\u7684\u6570\u636e\u8d85\u8fc7\u4e86MTU\uff0c\u5219\u9700\u8981\u5728IP\u5c42\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7247\uff08fragmentation\uff09\u3002<\/li>\n\n\n\n<li>\u6b64\u5916\uff0c\u4ee5\u592a\u7f51\u89c4\u5b9aMAC\u5e27\u4e2d\u6570\u636e\u7684\u6700\u5c0f\u957f\u5ea6\u4e3a46\u5b57\u8282\uff0c\u5982\u679c\u53d1\u9001\u6570\u636e\u91cf\u5c0f\u4e8e46\u5b57\u8282\uff0c\u5219\u9700\u8981\u5728\u6570\u636e\u540e\u9762\u8865\u586b\u5145\u4f4d\uff0c\u6bd4\u5982ARP\u6570\u636e\u5305\u7684\u957f\u5ea6\u5c31\u662f\u4e0d\u591f46\u5b57\u8282\u7684\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">MTU\u5bf9IP\u534f\u8bae\u7684\u5f71\u54cd<\/h3>\n\n\n\n<p>\u56e0\u4e3a\u6570\u636e\u94fe\u8def\u5c42\u89c4\u5b9a\u4e86\u6700\u5927\u4f20\u8f93\u5355\u5143MTU\uff0c\u6240\u4ee5\u5982\u679cIP\u5c42\u4e00\u6b21\u8981\u53d1\u9001\u7684\u6570\u636e\u91cf\u8d85\u8fc7\u4e86MTU\uff0c\u6b64\u65f6IP\u5c42\u5c31\u9700\u8981\u5148\u5bf9\u8be5\u6570\u636e\u8fdb\u884c\u5206\u7247\uff0c\u7136\u540e\u624d\u80fd\u5c06\u5206\u7247\u540e\u7684\u6570\u636e\u5411\u4e0b\u4ea4\u4ed8\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>IP\u5c42\u4f1a\u5c06\u8f83\u5927\u7684\u6570\u636e\u8fdb\u884c\u5206\u7247\uff0c\u5e76\u7ed9\u6bcf\u4e2a\u5206\u7247\u6570\u636e\u5305\u8fdb\u884c\u6807\u8bb0\uff0c\u5177\u4f53\u5c31\u662f\u901a\u8fc7\u8bbe\u7f6eIP\u62a5\u5934\u5f53\u4e2d\u768416\u4f4d\u6807\u8bc6\u30013\u4f4d\u6807\u5fd7\u548c13\u4f4d\u7247\u504f\u79fb\u6765\u5b8c\u6210\u7684\u3002<\/li>\n\n\n\n<li>\u7531\u540c\u4e00\u4e2a\u6570\u636e\u5206\u7247\u5f97\u5230\u7684\u5404\u4e2a\u5206\u7247\u62a5\u6587\uff0c\u6240\u5bf9\u5e94\u7684IP\u62a5\u5934\u5f53\u4e2d\u768416\u4f4d\u6807\u8bc6\uff08id\uff09\u90fd\u662f\u76f8\u540c\u7684\u3002<\/li>\n\n\n\n<li>\u6bcf\u4e00\u4e2a\u5206\u7247\u62a5\u6587\u7684IP\u62a5\u5934\u5f53\u4e2d\u76843\u4f4d\u6807\u5fd7\u5b57\u6bb5\u4e2d\uff0c\u7b2c2\u4f4d\u8bbe\u7f6e\u4e3a0\uff0c\u8868\u793a\u5141\u8bb8\u5206\u7247\uff0c\u7b2c3\u4f4d\u7528\u4f5c\u7ed3\u675f\u6807\u8bb0\uff08\u6700\u540e\u4e00\u4e2a\u5206\u7247\u62a5\u6587\u8bbe\u7f6e\u4e3a0\uff0c\u5176\u4f59\u5206\u7247\u62a5\u6587\u8bbe\u7f6e\u4e3a1\uff09\u3002<\/li>\n\n\n\n<li>\u5f53\u5bf9\u7aefIP\u5c42\u6536\u5230\u8fd9\u4e9b\u5206\u7247\u62a5\u6587\u540e\uff0c\u9700\u8981\u5148\u5c06\u8fd9\u4e9b\u5206\u7247\u62a5\u6587\u6309\u987a\u5e8f\u8fdb\u884c\u7ec4\u88c5\uff0c\u62fc\u88c5\u5230\u4e00\u8d77\u540e\u518d\u5411\u4e0a\u4ea4\u4ed8\u7ed9\u4f20\u8f93\u5c42\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u5206\u7247\u540e\u7684\u67d0\u4e2a\u62a5\u6587\u5728\u7f51\u7edc\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u4e22\u5305\u4e86\uff0c\u90a3\u4e48\u5bf9\u7aef\u5728\u8fdb\u884c\u6570\u636e\u7ec4\u88c5\u65f6\u5c31\u4f1a\u5931\u8d25\uff0c\u6b64\u65f6\u5c31\u9700\u8981\u4e0a\u5c42\u4f20\u8f93\u5c42\u8fdb\u884c\u6570\u636e\u91cd\u4f20\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6570\u636e\u7684\u5206\u7247\u548c\u7ec4\u88c5\u53d1\u751f\u5728IP\u5c42\uff0c\u4e0d\u4ec5\u6e90\u7aef\u4e3b\u673a\u53ef\u80fd\u4f1a\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7247\uff0c\u6570\u636e\u5728\u8def\u7531\u8fc7\u7a0b\u4e2d\u7684\u8def\u7531\u5668\u4e5f\u53ef\u80fd\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7247\u3002\u56e0\u4e3a\u4e0d\u540c\u7f51\u7edc\u7684MTU\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u5982\u679c\u4f20\u8f93\u8def\u5f84\u4e0a\u7684\u67d0\u4e2a\u7f51\u7edc\u7684MTU\u6bd4\u6e90\u7aef\u7f51\u7edc\u7684MTU\u5c0f\uff0c\u90a3\u4e48\u8def\u7531\u5668\u5c31\u53ef\u80fd\u5bf9IP\u6570\u636e\u62a5\u518d\u6b21\u8fdb\u884c\u5206\u7247\u3002<\/p>\n\n\n\n<p><strong>\u6ce8\uff1a<\/strong> \u5982\u679c\u60f3\u4e86\u89e3\u6570\u636e\u5206\u7247\u548c\u7ec4\u88c5\u7684\u5177\u4f53\u8fc7\u7a0b\uff0c\u8bf7\u770b\u535a\u4e3b\u7684\u53e6\u4e00\u7bc7\u535a\u5ba2<a href=\"https:\/\/blog.csdn.net\/chenlong_cxy\/article\/details\/125837340?spm=1001.2014.3001.5501\">\u7f51\u7edc\u5c42\u534f\u8bae \u2014\u2014\u2014 IP\u534f\u8bae<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">MTU\u5bf9UDP\u534f\u8bae\u7684\u5f71\u54cd<\/h3>\n\n\n\n<p>IP\u62a5\u5934\u5f53\u4e2d\u5982\u679c\u4e0d\u643a\u5e26\u9009\u9879\u5b57\u6bb5\uff0c\u90a3\u4e48IP\u62a5\u5934\u7684\u957f\u5ea6\u5c31\u662f20\u5b57\u8282\uff0c\u800cUDP\u91c7\u7528\u7684\u662f\u5b9a\u957f\u4e3a8\u5b57\u8282\u62a5\u5934\uff0c\u56e0\u6b64\u5982\u679cUDP\u4e00\u6b21\u643a\u5e26\u7684\u6570\u636e\u8d85\u8fc7\u4e861500 &#8211; 20 &#8211; 8 = 1472\u5b57\u8282\uff0c\u6b64\u65f6\u6570\u636e\u5c31\u9700\u8981\u5728IP\u5c42\u8fdb\u884c\u5206\u7247\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5206\u7247\u540e\u5f97\u5230\u7684\u591a\u4e2aIP\u6570\u636e\u62a5\u4e2d\u6709\u4efb\u610f\u4e00\u4e2a\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u4e22\u5931\uff0c\u90fd\u4f1a\u5f15\u8d77\u63a5\u6536\u7aefIP\u5c42\u91cd\u7ec4\u5931\u8d25\u3002<\/li>\n\n\n\n<li>\u5047\u8bbe\u5728\u7f51\u7edc\u4f20\u8f93\u65f6\u4e22\u5305\u7684\u6982\u7387\u662f\u4e07\u5206\u4e4b\u4e00\uff0c\u5982\u679c\u5c06\u6570\u636e\u62c6\u5206\u4e3a\u4e00\u767e\u4efd\u8fdb\u884c\u53d1\u9001\uff0c\u90a3\u4e48\u6b64\u65f6\u4e22\u5305\u7684\u6982\u7387\u5c31\u4e0a\u5347\u5230\u4e86\u767e\u5206\u4e4b\u4e00\u3002<\/li>\n\n\n\n<li>\u56e0\u4e3a\u53ea\u8981\u6709\u4e00\u4e2a\u5206\u7247\u62a5\u6587\u4e22\u5305\u4e86\u4e5f\u5c31\u7b49\u540c\u4e8e\u8fd9\u4e2a\u62a5\u6587\u6574\u4f53\u4e22\u5931\u4e86\uff0c\u56e0\u6b64\u5206\u7247\u4f1a\u589e\u52a0UDP\u62a5\u6587\u4e22\u5305\u7684\u6982\u7387\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">MTU\u5bf9TCP\u534f\u8bae\u7684\u5f71\u54cd<\/h3>\n\n\n\n<p>\u5bf9\u4e8eTCP\u6765\u8bf4\uff0c\u5206\u7247\u4e5f\u4f1a\u589e\u52a0TCP\u62a5\u6587\u4e22\u5305\u7684\u6982\u7387\uff0c\u4f46\u4e0eUDP\u4e0d\u540c\u7684\u662fTCP\u4e22\u5305\u540e\u8fd8\u9700\u8981\u8fdb\u884c\u91cd\u4f20\uff0c\u56e0\u6b64TCP\u5e94\u8be5\u5c3d\u91cf\u51cf\u5c11\u56e0\u4e3a\u5206\u7247\u5bfc\u81f4\u7684\u6570\u636e\u91cd\u4f20\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TCP\u53d1\u9001\u7684\u6570\u636e\u62a5\u4e0d\u80fd\u65e0\u9650\u5927\uff0c\u8fd8\u662f\u5e94\u8be5\u53d7\u5236\u4e8eMTU\uff0c\u6211\u4eec\u5c06TCP\u7684\u5355\u4e2a\u6570\u636e\u62a5\u7684\u6700\u5927\u62a5\u6587\u957f\u5ea6\uff0c\u79f0\u4e3aMSS\uff08Max Segment Size\uff09\u3002<\/li>\n\n\n\n<li>TCP\u901a\u4fe1\u53cc\u65b9\u5728\u5efa\u7acb\u8fde\u63a5\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5c31\u4f1a\u8fdb\u884cMSS\u534f\u5546\uff0c\u6700\u7ec8\u9009\u53d6\u53cc\u65b9\u652f\u6301\u7684MSS\u503c\u5f53\u4e2d\u7684\u8f83\u5c0f\u503c\u4f5c\u4e3a\u6700\u7ec8MSS\u3002<\/li>\n\n\n\n<li>MSS\u7684\u503c\u5b9e\u9645\u5c31\u662f\u5728TCP\u9996\u90e8\u768440\u5b57\u8282\u7684\u9009\u9879\u5b57\u6bb5\u5f53\u4e2d\u7684\uff08kind=2\uff09\u3002<\/li>\n\n\n\n<li>\u6700\u7406\u60f3\u7684\u60c5\u51b5\u4e0b\uff0cMSS\u7684\u503c\u6b63\u597d\u5c31\u662f\u5728\u6570\u636e\u4e0d\u4f1a\u5728IP\u5c42\u8fdb\u884c\u5206\u7247\u7684\u6700\u5927\u957f\u5ea6\u3002<\/li>\n<\/ul>\n\n\n\n<p>MSS\u548cMTU\u7684\u5173\u7cfb\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/dddfcb7dd79f44b285b0dfac69edc559.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/dddfcb7dd79f44b285b0dfac69edc559.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u6570\u636e\u8de8\u7f51\u7edc\u4f20\u8f93\u7684\u8fc7\u7a0b<\/h3>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/544d4039601b44b593e51138cbc03dae.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/544d4039601b44b593e51138cbc03dae.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u4ee5\u4e3b\u673aA\u5c06\u6570\u636e\u8de8\u7f51\u7edc\u4f20\u8f93\u7ed9\u4e3b\u673aB\u4e3a\u4f8b\uff0c\u6570\u636e\u8def\u7531\u7684\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e3b\u673aA\u8981\u60f3\u5c06\u6570\u636e\u8de8\u7f51\u7edc\u4f20\u8f93\u7ed9\u4e3b\u673aB\uff0c\u9700\u8981\u5148\u5c06\u6570\u636e\u4ea4\u7ed9\u540c\u5c40\u57df\u7f51\u5f53\u4e2d\u7684\u8def\u7531\u5668A\uff0c\u56e0\u6b64\u4e3b\u673aA\u9700\u8981\u5c06\u5c01\u88c5\u597d\u7684MAC\u5e27\u53d1\u9001\u5230\u5f53\u524d\u5c40\u57df\u7f51\u5f53\u4e2d\uff0c\u6b64\u65f6MAC\u5e27\u5f53\u4e2d\u7684\u6e90MAC\u5730\u5740\u548c\u76ee\u7684MAC\u5730\u5740\uff0c\u5bf9\u5e94\u5c31\u662f\u4e3b\u673aA\u7684MAC\u5730\u5740\u548c\u8def\u7531\u5668A\u7684MAC\u5730\u5740\u3002<\/li>\n\n\n\n<li>\u6b64\u65f6\u4e3b\u673aA\u6240\u5728\u5c40\u57df\u7f51\u5f53\u4e2d\u7684\u6240\u6709\u4e3b\u673a\u90fd\u80fd\u6536\u5230\u8fd9\u4e2aMAC\u5e27\uff0c\u4f46\u6700\u7ec8\u53ea\u6709\u8def\u7531\u5668A\u53d1\u73b0\u8be5MAC\u5e27\u5f53\u4e2d\u7684\u76ee\u7684MAC\u5730\u5740\u4e0e\u81ea\u5df1\u7684MAC\u5730\u5740\u76f8\u540c\uff0c\u4e8e\u662f\u624d\u4f1a\u5bf9\u8be5MAC\u5e27\u8fdb\u884c\u89e3\u5305\uff0c\u5e76\u5c06\u89e3\u5305\u540e\u5269\u4e0b\u7684IP\u6570\u636e\u62a5\u4ea4\u4ed8\u7ed9IP\u5c42\u3002<\/li>\n\n\n\n<li>\u8def\u7531\u5668A\u7684IP\u5c42\u62ff\u5230\u89e3\u5305\u540e\u7684IP\u6570\u636e\u62a5\u540e\uff0c\u4f1a\u63d0\u53d6\u51faIP\u62a5\u5934\u5f53\u4e2d\u7684\u76ee\u7684IP\u5730\u5740\uff0c\u7136\u540e\u901a\u8fc7\u67e5\u8be2\u8def\u7531\u8868\u540e\u786e\u5b9a\u9700\u8981\u5c06\u8be5\u6570\u636e\u8f6c\u53d1\u7ed9\u8def\u7531\u5668B\uff0c\u4e8e\u662f\u8def\u7531\u5668A\u518d\u5c06\u6570\u636e\u5411\u4e0b\u8fdb\u884c\u4ea4\u4ed8\uff0c\u91cd\u65b0\u5c01\u88c5MAC\u5e27\u7684\u5e27\u5934\u548c\u5e27\u5c3e\uff0c\u4f46\u6b64\u65f6\u5c01\u88c5\u540e\u7684MAC\u5e27\u5f53\u4e2d\u7684\u6e90MAC\u5730\u5740\u548c\u76ee\u7684MAC\u5730\u5740\uff0c\u5c31\u53d8\u6210\u4e86\u8def\u7531\u5668A\u7684MAC\u5730\u5740\u548c\u8def\u7531\u5668B\u7684MAC\u5730\u5740\u3002<\/li>\n\n\n\n<li>\u4e0e\u8def\u7531\u5668A\u76f4\u63a5\u76f8\u8fde\u7684\u4e3b\u673a\u867d\u7136\u4e5f\u53ef\u80fd\u6709\u5f88\u591a\uff0c\u4f46\u6700\u7ec8\u53ea\u6709\u8def\u7531\u5668B\u53d1\u73b0\u8be5MAC\u5e27\u5f53\u4e2d\u7684\u76ee\u7684MAC\u5730\u5740\u4e0e\u81ea\u5df1\u7684MAC\u5730\u5740\u76f8\u540c\uff0c\u4e8e\u662f\u624d\u4f1a\u5bf9\u8be5MAC\u5e27\u8fdb\u884c\u89e3\u5305\uff0c\u5e76\u5c06\u89e3\u5305\u540e\u5269\u4e0b\u7684IP\u6570\u636e\u62a5\u4ea4\u4ed8\u7ed9IP\u5c42\u3002<\/li>\n\n\n\n<li>\u8def\u7531\u5668B\u7684IP\u5c42\u62ff\u5230\u89e3\u5305\u540e\u7684IP\u6570\u636e\u62a5\u540e\uff0c\u540c\u6837\u4f1a\u63d0\u53d6\u51faIP\u62a5\u5934\u5f53\u4e2d\u7684\u76ee\u7684IP\u5730\u5740\uff0c\u5e76\u901a\u8fc7\u67e5\u8be2\u8def\u7531\u8868\u540e\u786e\u5b9a\u9700\u8981\u5c06\u8be5\u6570\u636e\u8f6c\u53d1\u7ed9\u8def\u7531\u5668C\uff0c\u4e8e\u662f\u8def\u7531\u5668B\u518d\u5c06\u6570\u636e\u5411\u4e0b\u8fdb\u884c\u4ea4\u4ed8\uff0c\u91cd\u65b0\u5c01\u88c5MAC\u5e27\u7684\u5e27\u5934\u548c\u5e27\u5c3e\uff0c\u4f46\u6b64\u65f6\u5c01\u88c5\u540e\u7684MAC\u5e27\u5f53\u4e2d\u7684\u6e90MAC\u5730\u5740\u548c\u76ee\u7684MAC\u5730\u5740\u53c8\u53d8\u4e86\uff0c\u53d8\u6210\u4e86\u8def\u7531\u5668B\u7684MAC\u5730\u5740\u548c\u8def\u7531\u5668C\u7684MAC\u5730\u5740\u3002<\/li>\n\n\n\n<li>\u2026<\/li>\n\n\n\n<li>\u4e0d\u65ad\u91cd\u590d\u4e0a\u8ff0\u8fc7\u7a0b\uff0c\u76f4\u5230\u6700\u7ec8\u6570\u636e\u8f6c\u53d1\u81f3\u4e3b\u673aB\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u56e0\u6b64\u6570\u636e\u5728\u8fdb\u884c\u8de8\u7f51\u7edc\u4f20\u8f93\u65f6\uff0c\u5176\u5bf9\u5e94\u7684\u6e90IP\u5730\u5740\u548c\u76ee\u7684IP\u5730\u5740\u4e00\u822c\u662f\u4e0d\u4f1a\u53d8\u5316\u7684\uff0c\u800c\u8be5\u6570\u636e\u7684\u6e90MAC\u5730\u5740\u548c\u76ee\u7684MAC\u5730\u5740\u5374\u662f\u4e00\u76f4\u5728\u53d8\u5316\u7684\uff0c\u6839\u672c\u539f\u56e0\u5c31\u662f\u56e0\u4e3a\u8be5\u6570\u636e\u5bf9\u5e94\u7684\u4e0a\u4e00\u8df3\u4e3b\u673a\u548c\u5413\u4e00\u8df3\u4e3b\u673a\u5728\u4e0d\u65ad\u53d8\u5316\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>IP\u7f51\u7edc<\/p>\n<\/blockquote>\n\n\n\n<p>\u6570\u636e\u8de8\u7f51\u7edc\u4f20\u8f93\u7684\u8fc7\u7a0b\u5c31\u50cf\u73b0\u5b9e\u751f\u6d3b\u4e2d\u8fd0\u8f93\u5305\u88f9\u7684\u8fc7\u7a0b\u4e00\u6837\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u6bcf\u5230\u4e00\u4e2a\u65b0\u7684\u5c40\u57df\u7f51\u5c31\u9700\u8981\u5c01\u88c5\u4e0a\u5bf9\u5e94\u5c40\u57df\u7f51\u6807\u51c6\u7684\u62a5\u5934\uff0c\u5c31\u50cf\u5305\u88f9\u5728\u8fd0\u8f93\u7684\u4e0d\u540c\u9636\u6bb5\u53ef\u80fd\u4f1a\u4f7f\u7528\u4e0d\u540c\u7684\u4ea4\u901a\u5de5\u5177\uff0c\u6bd4\u5982\u706b\u8f66\u3001\u6c7d\u8f66\u3001\u81ea\u884c\u8f66\u3002<\/li>\n\n\n\n<li>\u4f46\u7ad9\u5728IP\u5c42\u770b\u5230\u7684\u6570\u636e\u5185\u5bb9\u59cb\u7ec8\u662f\u4e00\u6837\u7684\uff0c\u5c31\u50cf\u6211\u4eec\u6700\u7ec8\u770b\u5230\u7684\u59cb\u7ec8\u662f\u540c\u4e00\u4e2a\u5305\u88f9\u4e00\u6837\u3002<\/li>\n\n\n\n<li>\u5305\u88f9\u8fd0\u8f93\u65f6\u4f7f\u7528\u7684\u4e0d\u540c\u7684\u4ea4\u901a\u5de5\u5177\uff0c\u5bf9\u5e94\u5c31\u662f\u6570\u636e\u8def\u7531\u7ecf\u8fc7\u4e0d\u540c\u5c40\u57df\u7f51\u65f6\u6240\u6dfb\u52a0\u7684MAC\u5e27\u62a5\u5934\uff0c\u800c\u5305\u88f9\u5bf9\u5e94\u5c31\u662fMAC\u5e27\u7684\u6709\u6548\u8f7d\u8377\uff0c\u5373IP\u6570\u636e\u62a5\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u6570\u636e\u5728\u8de8\u7f51\u7edc\u4f20\u8f93\u8fc7\u7a0b\u4e2d\uff0c\u5176\u5bf9\u5e94\u7684MAC\u5e27\u7684\u62a5\u5934\u662f\u5728\u4e0d\u65ad\u53d8\u5316\u7684\uff0c\u800cMAC\u5e27\u5f53\u4e2d\u7684IP\u6570\u636e\u62a5\u5f53\u4e2d\u7684\u5185\u5bb9\u662f\u4e0d\u53d8\u7684\uff0c\u6240\u4ee5\u7ad9\u5728IP\u5c42\u770b\u5230\u7684\u6570\u636e\u5185\u5bb9\u90fd\u662f\u4e00\u6837\u7684\uff0c\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u73b0\u5728\u4e3b\u6d41\u7684\u7f51\u7edc\u53eb\u505a\u201cIP\u7f51\u7edc\u201d\u7684\u539f\u56e0\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ARP\u534f\u8bae<\/h2>\n\n\n\n<p>\u5730\u5740\u89e3\u6790\u534f\u8bae\uff08Address Resolution Protocol\uff0cARP\uff09\u534f\u8bae\uff0c\u662f\u6839\u636eIP\u5730\u5740\u83b7\u53d6MAC\u5730\u5740\u7684\u4e00\u4e2aTCP\/IP\u534f\u8bae\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ARP\u534f\u8bae\u7684\u4f5c\u7528<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e3a\u4ec0\u4e48\u4f1a\u5b58\u5728ARP\u8fd9\u6837\u7684\u534f\u8bae?<\/p>\n<\/blockquote>\n\n\n\n<p>\u4ee5\u521a\u624d\u7684\u4f8b\u5b50\u4e3a\u4f8b\uff0c\u5f53\u6570\u636e\u4ece\u4e3b\u673aA\u7ecf\u8fc7\u5404\u79cd\u8def\u7531\u8f6c\u53d1\u5230\u8fbe\u8def\u7531\u5668D\uff0c\u6b64\u65f6\u8def\u7531\u5668D\u5c31\u9700\u8981\u5c06\u6570\u636e\u8f6c\u53d1\u7ed9\u4e3b\u673aB\u5b8c\u6210\u6570\u636e\u7684\u8def\u7531\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/544d4039601b44b593e51138cbc03dae-168439970577320.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/544d4039601b44b593e51138cbc03dae-168439970577320.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/><\/div><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7531\u4e8e\u8def\u7531\u5668D\u548c\u4e3b\u673aB\u662f\u5c5e\u4e8e\u540c\u4e00\u4e2a\u5c40\u57df\u7f51\u7684\uff0c\u56e0\u6b64\u8def\u7531\u5668D\u80fd\u591f\u76f4\u63a5\u5c06\u6570\u636e\u4ea4\u7ed9\u4e3b\u673aB\uff0c\u4f46\u8981\u7ed9\u540c\u5c40\u57df\u7f51\u4e2d\u7684\u4e00\u53f0\u4e3b\u673a\u53d1\u9001\u6570\u636e\uff0c\u524d\u63d0\u662f\u5f97\u5148\u77e5\u9053\u5bf9\u65b9\u7684MAC\u5730\u5740\u3002<\/li>\n\n\n\n<li>\u4f46\u8def\u7531\u5668D\u6b64\u65f6\u53ea\u77e5\u9053\u4e3b\u673aB\u7684IP\u5730\u5740\uff0c\u56e0\u6b64\u8def\u7531\u5668D\u5fc5\u987b\u901a\u8fc7\u67d0\u79cd\u65b9\u5f0f\u5f97\u5230\u4e3b\u673aB\u7684MAC\u5730\u5740\u3002.<\/li>\n<\/ul>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u5728\u540c\u4e00\u4e2a\u5c40\u57df\u7f51\u4e2d\u8981\u7ed9\u5bf9\u65b9\u53d1\u6d88\u606f\uff0c\u5c31\u5fc5\u987b\u5f97\u77e5\u9053\u5bf9\u65b9\u7684MAC\u5730\u5740\uff0c\u800c\u5b9e\u9645\u5927\u90e8\u5206\u60c5\u51b5\u4e0b\u6211\u4eec\u53ea\u77e5\u9053\u5bf9\u65b9\u7684IP\u5730\u5740\uff0c\u56e0\u6b64\u9700\u8981\u901a\u8fc7ARP\u534f\u8bae\u6765\u6839\u636eIP\u5730\u5740\u6765\u83b7\u53d6\u76ee\u6807\u4e3b\u673a\u7684MAC\u5730\u5740\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>ARP\u534f\u8bae\u7684\u5b9a\u4f4d<\/p>\n<\/blockquote>\n\n\n\n<p>\u5728TCP\/IP\u56db\u5c42\u6a21\u578b\u4e2d\uff0c\u7f51\u7edc\u534f\u8bae\u6808\u81ea\u9876\u5411\u4e0b\u5206\u4e3a\u5e94\u7528\u5c42\u3001\u4f20\u8f93\u5c42\u3001\u7f51\u7edc\u5c42\u548c\u6570\u636e\u94fe\u8def\u5c42\u3002<\/p>\n\n\n\n<p>\u5176\u4e2d\u5e94\u7528\u5c42\u6700\u5178\u578b\u7684\u534f\u8bae\u6709HTTP\u3001HTTPS\u548cDNS\u7b49\uff0c\u4f20\u8f93\u5c42\u6700\u5178\u578b\u7684\u534f\u8bae\u6709TCP\u548cUDP\uff0c\u7f51\u7edc\u5c42\u6700\u5178\u578b\u7684\u534f\u8bae\u5c31\u662fIP\uff0c\u6570\u636e\u94fe\u8def\u5c42\u6700\u5178\u578b\u7684\u534f\u8bae\u5c31\u662fMAC\u5e27\u534f\u8bae\uff0c\u4f46\u5b9e\u9645\u6570\u636e\u94fe\u8def\u5c42\u8fd8\u6709\u4e24\u79cd\u534f\u8bae\u53eb\u505aARP\u548cRARP\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/a43fa77dd53a4758a9ebe280ee4771e1.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/a43fa77dd53a4758a9ebe280ee4771e1.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>ARP\u3001RARP\u548cMAC\u5e27\u534f\u8bae\u867d\u7136\u90fd\u5c5e\u4e8e\u6570\u636e\u94fe\u8def\u5c42\u7684\u534f\u8bae\uff0c\u4f46ARP\u534f\u8bae\u548cRARP\u534f\u8bae\u5c5e\u4e8eMAC\u5e27\u7684\u4e0a\u5c42\u534f\u8bae<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e5f\u5c31\u662f\u8bf4\uff0cMAC\u5e27\u7684\u4e0a\u5c42\u534f\u8bae\u4e0d\u4e00\u5b9a\u5c31\u76f4\u63a5\u662f\u7f51\u7edc\u5c42\u7684\u534f\u8bae\uff0cMAC\u5e27\u7684\u4e0a\u5c42\u534f\u8bae\u6709\u53ef\u80fd\u4e5f\u5c5e\u4e8e\u6570\u636e\u94fe\u8def\u5c42\u7684\u534f\u8bae\uff0c\u4f46\u5c31\u662f\u4f4d\u4e8eMAC\u5e27\u7684\u4e0a\u5c42\u3002<\/li>\n\n\n\n<li>\u4e0e\u4e4b\u7c7b\u4f3c\u7684\uff0c\u7f51\u7edc\u5c42\u5f53\u4e2d\u7684ICMP\u534f\u8bae\u548cIGMP\u534f\u8bae\uff0c\u8fd9\u4e24\u4e2a\u534f\u8bae\u867d\u7136\u4e0eIP\u534f\u8bae\u90fd\u5c5e\u4e8e\u7f51\u7edc\u5c42\uff0c\u4f46\u8fd9\u4e24\u4e2a\u534f\u8bae\u5c5e\u4e8eIP\u7684\u4e0a\u5c42\u534f\u8bae\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">ARP\u6570\u636e\u7684\u683c\u5f0f<\/h3>\n\n\n\n<p>ARP\u6570\u636e\u7684\u683c\u5f0f\u5982\u4e0b:<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/7b31f29e08b04c368f639f9b178ce87c.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/7b31f29e08b04c368f639f9b178ce87c.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u786c\u4ef6\u7c7b\u578b\u6307\u94fe\u8def\u5c42\u7684\u7f51\u7edc\u7c7b\u578b\uff0c1\u4e3a\u4ee5\u592a\u7f51\u3002<\/li>\n\n\n\n<li>\u534f\u8bae\u7c7b\u578b\u6307\u8981\u8f6c\u6362\u7684\u5730\u5740\u7c7b\u578b\uff0c0x0800\u4e3aIP\u5730\u5740\u3002<\/li>\n\n\n\n<li>\u786c\u4ef6\u5730\u5740\u957f\u5ea6\u5bf9\u4e8e\u4ee5\u592a\u7f51\u5730\u5740\u4e3a6\u5b57\u8282\uff0c\u56e0\u4e3aMAC\u5730\u5740\u662f48\u4f4d\u7684\u3002<\/li>\n\n\n\n<li>\u534f\u8bae\u5730\u5740\u957f\u5ea6\u5bf9\u4e8eIP\u5730\u5740\u4e3a4\u5b57\u8282\uff0c\u56e0\u4e3aIP\u5730\u5740\u662f32\u4f4d\u7684\u3002<\/li>\n\n\n\n<li>op\u5b57\u6bb5\u4e3a1\u8868\u793aARP\u8bf7\u6c42\uff0cop\u5b57\u6bb5\u4e3a2\u8868\u793aARP\u5e94\u7b54\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4eceARP\u7684\u6570\u636e\u683c\u5f0f\u4e5f\u53ef\u4ee5\u770b\u51fa\uff0cARP\u662fMAC\u5e27\u534f\u8bae\u7684\u4e0a\u5c42\u534f\u8bae\uff0cARP\u6570\u636e\u683c\u5f0f\u4e2d\u7684\u524d3\u4e2a\u5b57\u6bb5\u548c\u6700\u540e\u4e00\u4e2a\u5b57\u6bb5\u5bf9\u5e94\u7684\u5c31\u662f\u4ee5\u592a\u7f51\u9996\u90e8\uff0c\u4f46\u7531\u4e8eARP\u6570\u636e\u5305\u7684\u957f\u5ea6\u4e0d\u8db346\u5b57\u8282\uff0c\u56e0\u6b64ARP\u6570\u636e\u5305\u5728\u5c01\u88c5\u6210\u4e3aMAC\u5e27\u65f6\u8fd8\u9700\u8981\u8865\u4e0a18\u5b57\u8282\u7684\u586b\u5145\u5b57\u6bb5\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ARP\u534f\u8bae\u7684\u5de5\u4f5c\u6d41\u7a0b<\/h3>\n\n\n\n<p>\u8fd8\u662f\u4ee5\u521a\u624d\u7684\u4f8b\u5b50\u4e3a\u4f8b\uff0c\u8def\u7531\u5668D\u8981\u5c06\u6570\u636e\u8f6c\u53d1\u7ed9\u540c\u4e00\u5c40\u57df\u7f51\u5f53\u4e2d\u7684\u4e3b\u673aB\uff0c\u524d\u63d0\u662f\u8def\u7531\u5668D\u5fc5\u987b\u77e5\u9053\u4e3b\u673aB\u7684MAC\u5730\u5740\uff0c\u800c\u73b0\u5728\u8def\u7531\u5668D\u53ea\u77e5\u9053\u4e3b\u673aB\u7684IP\u5730\u5740\uff0c\u56e0\u6b64\u8def\u7531\u5668D\u73b0\u5728\u9700\u8981\u5411\u4e3b\u673aB\u53d1\u8d77ARP\u8bf7\u6c42\uff0c\u7136\u540e\u7b49\u5f85\u4e3b\u673aB\u53d1\u9001ARP\u5e94\u7b54\u5f97\u77e5\u4e3b\u673aB\u7684MAC\u5730\u5740\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>ARP\u8bf7\u6c42\u7684\u8fc7\u7a0b<\/p>\n<\/blockquote>\n\n\n\n<p>\u9996\u5148\u8def\u7531\u5668D\u9700\u8981\u5148\u6784\u5efaARP\u8bf7\u6c42.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9996\u5148\uff0c\u56e0\u4e3a\u8def\u7531\u5668D\u6784\u5efa\u7684\u662fARP\u8bf7\u6c42\uff0c\u56e0\u6b64ARP\u8bf7\u6c42\u5f53\u4e2d\u7684op\u5b57\u6bb5\u8bbe\u7f6e\u4e3a1\u3002<\/li>\n\n\n\n<li>ARP\u8bf7\u6c42\u5f53\u4e2d\u7684\u786c\u4ef6\u7c7b\u578b\u5b57\u6bb5\u8bbe\u7f6e\u4e3a1\uff0c\u56e0\u4e3a\u5f53\u524d\u4f7f\u7528\u7684\u662f\u4ee5\u592a\u7f51\u901a\u4fe1\u3002<\/li>\n\n\n\n<li>ARP\u8bf7\u6c42\u5f53\u4e2d\u7684\u534f\u8bae\u7c7b\u578b\u8bbe\u7f6e\u4e3a0800\uff0c\u56e0\u4e3a\u8def\u7531\u5668\u662f\u8981\u6839\u636e\u4e3b\u673aB\u7684IP\u5730\u5740\u6765\u83b7\u53d6\u4e3b\u673aB\u7684MAC\u5730\u5740\u3002<\/li>\n\n\n\n<li>ARP\u8bf7\u6c42\u5f53\u4e2d\u7684\u786c\u4ef6\u5730\u5740\u957f\u5ea6\u548c\u534f\u8bae\u5730\u5740\u957f\u5ea6\u5206\u522b\u8bbe\u7f6e\u4e3a6\u548c4\uff0c\u56e0\u4e3aMAC\u5730\u5740\u7684\u957f\u5ea6\u662f48\u4f4d\uff0cIP\u5730\u5740\u7684\u957f\u5ea6\u662f32\u4f4d\u3002<\/li>\n\n\n\n<li>ARP\u8bf7\u6c42\u5f53\u4e2d\u7684\u53d1\u9001\u7aef\u4ee5\u592a\u7f51\u5730\u5740\u548c\u53d1\u9001\u7aefIP\u5730\u5740\uff0c\u5bf9\u5e94\u5c31\u662f\u8def\u7531\u5668D\u7684MAC\u5730\u5740\u548cIP\u5730\u5740\u3002<\/li>\n\n\n\n<li>ARP\u8bf7\u6c42\u5f53\u4e2d\u7684\u76ee\u7684\u4ee5\u592a\u7f51\u5730\u5740\u548c\u76ee\u7684IP\u5730\u5740\uff0c\u5bf9\u5e94\u5c31\u662f\u4e3b\u673aB\u7684MAC\u5730\u5740\u548cIP\u5730\u5740\uff0c\u4f46\u7531\u4e8e\u8def\u7531\u5668D\u4e0d\u77e5\u9053\u4e3b\u673aB\u7684MAC\u5730\u5740\uff0c\u56e0\u6b64\u5c06\u76ee\u7684\u4ee5\u592a\u7f51\u5730\u5740\u7684\u4e8c\u8fdb\u5236\u5e8f\u5217\u8bbe\u7f6e\u4e3a\u51681\uff0c\u8868\u793a\u5728\u5c40\u57df\u7f51\u4e2d\u8fdb\u884c\u5e7f\u64ad\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6b64\u65f6ARP\u8bf7\u6c42\u6784\u5efa\u5b8c\u6210\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/6088b2061f7e4de7807c5e826c559f43.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/6088b2061f7e4de7807c5e826c559f43.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>ARP\u8bf7\u6c42\u6784\u5efa\u5b8c\u6210\u540e\uff0c\u4e3a\u4e86\u80fd\u5c06ARP\u8bf7\u6c42\u53d1\u9001\u5230\u4ee5\u592a\u7f51\u5f53\u4e2d\uff0c\u8fd8\u9700\u8981\u5c06ARP\u6570\u636e\u5305\u5411\u4e0b\u4ea4\u4ed8\u7ed9MAC\u5e27\u534f\u8bae\uff0c\u5c01\u88c5\u6210MAC\u5e27\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5c01\u88c5MAC\u5e27\u62a5\u5934\u65f6\uff0c\u4ee5\u592a\u7f51\u76ee\u7684\u5730\u5740\u548c\u4ee5\u592a\u7f51\u6e90\u5730\u5740\uff0c\u5bf9\u5e94\u5206\u522b\u662f\u4e3b\u673aB\u548c\u8def\u7531\u5668D\u7684MAC\u5730\u5740\uff0c\u4f46\u7531\u4e8e\u8def\u7531\u5668D\u4e0d\u77e5\u9053\u4e3b\u673aB\u7684MAC\u5730\u5740\uff0c\u56e0\u6b64MAC\u5e27\u62a5\u5934\u5f53\u4e2d\u7684\u4ee5\u592a\u7f51\u76ee\u7684\u5730\u5740\u7684\u4e8c\u8fdb\u5236\u5e8f\u5217\u4e5f\u53ea\u80fd\u8bbe\u7f6e\u4e3a\u51681\uff0c\u8868\u793a\u5728\u5c40\u57df\u7f51\u4e2d\u8fdb\u884c\u5e7f\u64ad\u3002<\/li>\n\n\n\n<li>\u56e0\u4e3a\u8fd9\u91cc\u5c01\u88c5\u7684\u662f\u4e00\u4e2aARP\u8bf7\u6c42\u6570\u636e\u5305\uff0c\u56e0\u6b64MAC\u5e27\u5f53\u4e2d\u7684\u5e27\u7c7b\u578b\u5b57\u6bb5\u8bbe\u7f6e\u4e3a0806\u3002<\/li>\n\n\n\n<li>\u7531\u4e8eARP\u8bf7\u6c42\u6570\u636e\u5305\u7684\u957f\u5ea6\u53ea\u670928\u5b57\u8282\uff0c\u4e0d\u8db346\u5b57\u8282\uff0c\u56e0\u6b64\u8fd8\u9700\u8981\u5728MAC\u5e27\u7684\u6709\u6548\u8f7d\u8377\u5f53\u4e2d\u8865\u4e0a18\u5b57\u8282\u7684\u586b\u5145\u5b57\u6bb5\uff0c\u6700\u540e\u518d\u5bf9MAC\u5e27\u8fdb\u884cCRC\u6821\u9a8c\u5373\u53ef\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6b64\u65f6ARP\u8bf7\u6c42\u5c31\u88ab\u5c01\u88c5\u6210MAC\u5e27\u4e86\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/34fe2ea150cb4c78b9b6f526504f9303.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/34fe2ea150cb4c78b9b6f526504f9303.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>MAC\u5e27\u5c01\u88c5\u5b8c\u6bd5\u540e\uff0c\u8def\u7531\u5668D\u5c31\u53ef\u4ee5\u5c06\u5c01\u88c5\u597d\u7684MAC\u5e27\u4ee5\u5e7f\u64ad\u7684\u65b9\u5f0f\u53d1\u9001\u5230\u5c40\u57df\u7f51\u5f53\u4e2d\u4e86\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u56e0\u4e3a\u8fd9\u4e2aMAC\u5e27\u662f\u4ee5\u5e7f\u64ad\u7684\u65b9\u5f0f\u53d1\u51fa\u7684\uff0c\u56e0\u6b64\u5c40\u57df\u7f51\u5f53\u4e2d\u7684\u6bcf\u53f0\u4e3b\u673a\u6536\u5230\u8fd9\u4e2aMAC\u5e27\u540e\uff0c\u90fd\u4f1a\u5bf9\u8be5MAC\u5e27\u8fdb\u884c\u89e3\u5305\u3002\u5f53\u8fd9\u4e9b\u4e3b\u673a\u8bc6\u522b\u5230MAC\u5e27\u5f53\u4e2d\u7684\u5e27\u7c7b\u578b\u5b57\u6bb5\u4e3a0806\u540e\uff0c\u4fbf\u77e5\u9053\u8fd9\u662f\u4e00\u4e2aARP\u7684\u8bf7\u6c42\u6216\u5e94\u7b54\u7684\u6570\u636e\u5305\uff0c\u4e8e\u662f\u4f1a\u5c06MAC\u5e27\u7684\u6709\u6548\u8f7d\u8377\u5411\u4e0a\u4ea4\u4ed8\u7ed9ARP\u5c42\u3002<\/li>\n\n\n\n<li>\u5f53ARP\u5c42\u6536\u5230\u8fd9\u4e2a\u6570\u636e\u5305\u540e\uff0c\u53d1\u73b0ARP\u6570\u636e\u5305\u5f53\u4e2d\u7684op\u5b57\u6bb5\u4e3a1\uff0c\u4e8e\u662f\u5224\u5b9a\u8fd9\u662f\u4e00\u4e2aARP\u8bf7\u6c42\uff0c\u7136\u540e\u518d\u63d0\u53d6\u51faARP\u6570\u636e\u5305\u5f53\u4e2d\u7684\u76ee\u7684IP\u5730\u5740\u5b57\u6bb5\uff0c\u867d\u7136\u5c40\u57df\u7f51\u5f53\u4e2d\u7684\u6240\u6709\u4e3b\u673a\u90fd\u4f1a\u5c06\u8be5\u6570\u636e\u5305\u4ea4\u7ed9\u81ea\u5df1\u7684ARP\u5c42\uff0c\u4f46\u6700\u7ec8\u53ea\u6709\u4e3b\u673aB\u53d1\u73b0ARP\u6570\u636e\u5305\u5f53\u4e2d\u7684\u76ee\u7684IP\u5730\u5740\u4e0e\u81ea\u5df1\u76f8\u540c\uff0c\u56e0\u6b64\u53ea\u6709\u4e3b\u673aB\u4f1a\u5bf9\u8be5ARP\u8bf7\u6c42\u8fdb\u884c\u5e94\u7b54\uff0c\u800c\u5c40\u57df\u7f51\u5f53\u4e2d\u7684\u5176\u4ed6\u4e3b\u673a\u5728\u8bc6\u522b\u5230ARP\u6570\u636e\u5305\u5f53\u4e2d\u7684\u76ee\u7684IP\u5730\u5740\u4e0e\u81ea\u5df1\u4e0d\u5339\u914d\u540e\uff0c\u5c31\u4f1a\u76f4\u63a5\u5c06\u8fd9\u4e2aARP\u8bf7\u6c42\u62a5\u6587\u4e22\u5f03\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5c40\u57df\u7f51\u5f53\u4e2d\u5176\u4ed6\u4e0d\u76f8\u5e72\u7684\u4e3b\u673a\u5728\u6536\u5230\u8fd9\u4e2aARP\u8bf7\u6c42\u62a5\u6587\u540e\uff0c\u4e0d\u662f\u5728MAC\u5e27\u5c42\u4e22\u5f03\u7684,\u800c\u662f\u5728ARP\u5c42\u53d1\u73b0\u8be5ARP\u6570\u636e\u5305\u7684\u76ee\u7684IP\u4e0e\u81ea\u5df1\u7684IP\u4e0d\u5339\u914d\u540e\u4e22\u5f03\u7684\u3002<\/p>\n\n\n\n<p>\u603b\u7ed3\uff1a<\/p>\n\n\n\n<p>\u53d1\u8d77\u65b9\u6784\u5efaARP\u8bf7\u6c42\uff0c\u4ee5\u5e7f\u64ad\u7684\u65b9\u5f0f\u53d1\u9001\u7ed9\u6bcf\u4e00\u4e2a\u4e3b\u673a\u3002<br>\u6bcf\u53f0\u4e3b\u673a\u90fd\u80fd\u8bc6\u522b\u63a5\u6536\uff0c\u7136\u540e\u6839\u636eMAC\u5e27\u7684\u5e27\u7c7b\u578b\u5b57\u6bb5\u5c06\u6709\u6548\u8f7d\u8377\u4ea4\u4ed8\u7ed9\u6bcf\u4e2a\u4e3b\u673a\u7684ARP\u5c42\u3002<br>\u5176\u4ed6\u4e0d\u76f8\u5173\u4e3b\u673a\u7acb\u9a6c\u6839\u636e\u76ee\u7684IP\uff0c\u5728\u81ea\u5df1\u7684ARP\u534f\u8bae\u5185\u90e8\u4e22\u5f03ARP\u8bf7\u6c42\uff0c\u53ea\u6709\u76ee\u6807\u4e3b\u673a\u4f1a\u5904\u7406\u8bf7\u6c42\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>ARP\u5e94\u7b54\u7684\u8fc7\u7a0b<\/p>\n<\/blockquote>\n\n\n\n<p>\u4e3b\u673aB\u5728\u5e94\u7b54\u65f6\u9996\u5148\u9700\u8981\u6784\u5efaARP\u5e94\u7b54\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9996\u5148\uff0c\u56e0\u4e3a\u4e3b\u673aB\u6784\u5efa\u7684\u662fARP\u5e94\u7b54\uff0c\u56e0\u6b64ARP\u5e94\u7b54\u5f53\u4e2d\u7684op\u5b57\u6bb5\u8bbe\u7f6e\u4e3a2\u3002<\/li>\n\n\n\n<li>ARP\u5e94\u7b54\u5f53\u4e2d\u7684\u786c\u4ef6\u7c7b\u578b\u3001\u534f\u8bae\u7c7b\u578b\u3001\u786c\u4ef6\u5730\u5740\u957f\u5ea6\u3001\u534f\u8bae\u5730\u5740\u957f\u5ea6\u7684\u503c\u4e0eARP\u8bf7\u6c42\u5f53\u4e2d\u8bbe\u7f6e\u7684\u503c\u76f8\u540c\u3002<\/li>\n\n\n\n<li>ARP\u5e94\u7b54\u5f53\u4e2d\u7684\u53d1\u9001\u7aef\u5730\u5740\u548c\u53d1\u9001\u7aefIP\u5730\u5740\uff0c\u5bf9\u5e94\u5c31\u662f\u4e3b\u673aB\u7684MAC\u5730\u5740\u548cIP\u5730\u5740\u3002<\/li>\n\n\n\n<li>ARP\u5e94\u7b54\u5f53\u4e2d\u7684\u76ee\u7684\u4ee5\u592a\u7f51\u5730\u5740\u548c\u76ee\u7684IP\u5730\u5740\uff0c\u5bf9\u5e94\u5c31\u662f\u8def\u7531\u5668D\u7684MAC\u5730\u5740\u548cIP\u5730\u5740\uff0c\u56e0\u4e3a\u8def\u7531\u5668D\u53d1\u6765\u7684ARP\u8bf7\u6c42\u5f53\u4e2d\u544a\u77e5\u4e86\u4e3b\u673aB\u5b83\u7684MAC\u5730\u5740\u548cIP\u5730\u5740\uff0c\u56e0\u6b64\u4e3b\u673aB\u662f\u77e5\u9053\u7684\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6b64\u65f6ARP\u5e94\u7b54\u6784\u5efa\u5b8c\u6210\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/2cc73b3ca3c64c9fa2fdda7446895264.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/2cc73b3ca3c64c9fa2fdda7446895264.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>ARP\u5e94\u7b54\u6784\u5efa\u5b8c\u6210\u540e\uff0c\u4e3a\u4e86\u80fd\u5c06ARP\u5e94\u7b54\u53d1\u9001\u5230\u4ee5\u592a\u7f51\u5f53\u4e2d\uff0c\u4e5f\u9700\u8981\u5c06ARP\u6570\u636e\u5305\u5411\u4e0b\u4ea4\u4ed8\u7ed9MAC\u5e27\u534f\u8bae\uff0c\u5c01\u88c5\u6210MAC\u5e27\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5c01\u88c5MAC\u5e27\u62a5\u5934\u65f6\uff0c\u4ee5\u592a\u7f51\u76ee\u7684\u5730\u5740\u548c\u4ee5\u592a\u7f51\u6e90\u5730\u5740\uff0c\u5bf9\u5e94\u5206\u522b\u662f\u8def\u7531\u5668D\u548c\u4e3b\u673aB\u7684MAC\u5730\u5740\u3002<\/li>\n\n\n\n<li>\u56e0\u4e3a\u8fd9\u91cc\u5c01\u88c5\u7684\u662f\u4e00\u4e2aARP\u5e94\u7b54\u6570\u636e\u5305\uff0c\u56e0\u6b64MAC\u5e27\u5f53\u4e2d\u7684\u5e27\u7c7b\u578b\u5b57\u6bb5\u8bbe\u7f6e\u4e3a0806\u3002<\/li>\n\n\n\n<li>\u7531\u4e8eARP\u5e94\u7b54\u6570\u636e\u5305\u7684\u957f\u5ea6\u4e5f\u53ea\u670928\u5b57\u8282\uff0c\u4e0d\u8db346\u5b57\u8282\uff0c\u56e0\u6b64\u4e5f\u9700\u8981\u5728MAC\u5e27\u7684\u6709\u6548\u8f7d\u8377\u5f53\u4e2d\u8865\u4e0a18\u5b57\u8282\u7684\u586b\u5145\u5b57\u6bb5\uff0c\u6700\u540e\u518d\u5bf9MAC\u5e27\u8fdb\u884cCRC\u6821\u9a8c\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6b64\u65f6ARP\u5e94\u7b54\u5c31\u88ab\u5c01\u88c5\u6210MAC\u5e27\u4e86\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/5b8aaeba6f7c40978ce65200cfe65b67.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/5b8aaeba6f7c40978ce65200cfe65b67.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>MAC\u5e27\u5c01\u88c5\u5b8c\u6bd5\u540e\uff0c\u4e3b\u673aB\u5c31\u53ef\u4ee5\u5c06\u5c01\u88c5\u597d\u7684MAC\u5e27\u53d1\u9001\u5230\u5c40\u57df\u7f51\u5f53\u4e2d\u4e86\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6b64\u65f6\u5c40\u57df\u7f51\u5f53\u4e2d\u7684\u6bcf\u53f0\u4e3b\u673a\u5728\u5e95\u5c42\u90fd\u80fd\u6536\u5230\u8fd9\u4e2aMAC\u5e27\uff0c\u4f46\u5c40\u57df\u7f51\u5f53\u4e2d\u7684\u4e0d\u76f8\u5e72\u7684\u4e3b\u673a\uff0c\u5728\u53d1\u73b0\u8be5MAC\u5e27\u5bf9\u5e94\u7684\u4ee5\u592a\u7f51\u76ee\u7684\u5730\u5740\u4e0e\u81ea\u5df1\u4e0d\u540c\u540e\uff0c\u5c31\u4f1a\u5c06\u8be5MAC\u5e27\u4e22\u5f03\uff0c\u800c\u4e0d\u4f1a\u4ea4\u4ed8\u7ed9\u4e0a\u5c42ARP\u5c42\uff0c\u6700\u7ec8\u53ea\u6709\u8def\u7531\u5668D\u4f1a\u5c06\u89e3\u5305\u540eMAC\u5e27\u7684\u6709\u6548\u8f7d\u8377\u5411\u4e0a\u4ea4\u4ed8\u7ed9\u81ea\u5df1\u7684ARP\u5c42\u3002<\/li>\n\n\n\n<li>\u5f53\u8def\u7531\u5668D\u7684ARP\u5c42\u6536\u5230\u8fd9\u4e2a\u6570\u636e\u5305\u540e\uff0c\u53d1\u73b0ARP\u6570\u636e\u5305\u5f53\u4e2d\u7684op\u5b57\u6bb5\u4e3a2\uff0c\u4e8e\u662f\u5224\u5b9a\u8fd9\u662f\u4e00\u4e2aARP\u5e94\u7b54\uff0c\u7136\u540e\u5c31\u4f1a\u63d0\u53d6\u51faARP\u6570\u636e\u5305\u5f53\u4e2d\u7684\u53d1\u9001\u7aef\u4ee5\u592a\u7f51\u7684\u5730\u5740\u548c\u53d1\u9001\u7aefIP\u5730\u5740\uff0c\u6b64\u65f6\u8def\u7531\u5668D\u5c31\u62ff\u5230\u4e86\u4e3b\u673aB\u7684MAC\u5730\u5740\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5c40\u57df\u7f51\u5f53\u4e2d\u5176\u4ed6\u4e0d\u76f8\u5e72\u7684\u4e3b\u673a\u5728\u6536\u5230\u8fd9\u4e2aARP\u5e94\u7b54\u62a5\u6587\u540e\uff0c\u76f4\u63a5\u5728MAC\u5e27\u5c42\u5c31\u4e22\u5f03\u4e86\uff0c\u5e76\u6ca1\u6709\u5c06\u5176\u4ea4\u4ed8\u7ed9\u81ea\u5df1\u7684ARP\u5c42\u3002<\/p>\n\n\n\n<blockquote 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