{"id":1091,"date":"2022-02-20T22:04:00","date_gmt":"2022-02-20T14:04:00","guid":{"rendered":"https:\/\/www.myway5.com\/?p=1091"},"modified":"2023-07-05T10:00:50","modified_gmt":"2023-07-05T02:00:50","slug":"ipv6","status":"publish","type":"post","link":"https:\/\/www.myway5.com\/index.php\/2022\/02\/20\/ipv6\/","title":{"rendered":"IPv6 \u5b66\u4e60\u7b14\u8bb0"},"content":{"rendered":"<h2>1. \u6982\u8ff0<\/h2>\n<p>IPv6 \u5168\u79f0\u662f Internet Protocol Version 6\uff0c\u4e0d\u8fc7\u867d\u7136\u662f\u53eb Version 6\uff0c\u4e8b\u5b9e\u4e0a\u662f\u7f51\u7edc\u5c42\u534f\u8bae\u7684\u7b2c\u4e8c\u4ee3\u6807\u51c6\u534f\u8bae\u3002\u5176\u51fa\u73b0\u4e3b\u8981\u662f\u4e3a\u4e86\u89e3\u51b3 IPv4 \u5728\u5b9e\u9645\u5e94\u7528\u573a\u666f\u4e2d\u5b58\u5728\u7684\u4e00\u4e9b\u7f3a\u9677\u3002<\/p>\n<h2>\u4e0e IPv4 \u7684\u4f18\u7f3a\u70b9\u5bf9\u6bd4<\/h2>\n<blockquote><p>\n  \u6458\u6284\u81ea\uff1a\u534e\u4e3a IPv6 \u6280\u672f\u767d\u76ae\u4e66\n<\/p><\/blockquote>\n<table>\n<thead>\n<tr>\n<th align=\"left\">\u95ee\u9898<\/th>\n<th align=\"left\">IPv4\u7f3a\u9677<\/th>\n<th>IPv6\u4f18\u52bf<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"left\">\u5730\u5740\u7a7a\u95f4<\/td>\n<td align=\"left\">IPv4 \u5730\u5740\u53ea\u670932\u4f4d\uff0c\u56e0\u6b64\u603b\u5171\u53ef\u8868\u793a\u7684\u5730\u5740\u5728 43 \u4ebf\u5de6\u53f3\u3002\u53e6\u5916\u7531\u4e8e\u5386\u53f2\u539f\u56e0\uff0cIP \u5730\u5740\u7684\u5206\u914d\u4e5f\u975e\u5e38\u4e0d\u5747\u8861\uff1a\u7f8e\u56fd\u5360\u5168\u7403\u5730\u5740 \u7a7a\u95f4\u7684\u4e00\u534a\u5de6\u53f3\uff0c\u800c\u6b27\u6d32\u5219\u76f8\u5bf9\u532e\u4e4f;\u4e9a\u592a\u5730\u533a\u5219\u66f4\u52a0\u532e\u4e4f\u3002IPv4 \u4e2d\u7528\u6765\u89e3\u51b3\u5730\u5740\u77ed\u7f3a\u7684\u65b9\u6cd5\u6709\uff1aCIDR \u548c NAT\u3002\u4e0d\u8fc7\u8fd9\u4e24\u79cd\u65b9\u6848\u90fd\u6709\u5176\u672c\u8eab\u7684\u7f3a\u70b9\u3002<\/td>\n<td>IPv6 \u6709 128 \u4f4d\u3002\u7406\u8bba\u4e0a\u603b\u5171\u53ef\u4ee5\u652f\u6301 43\u4ebfx43\u4ebfx43\u4ebfx43\u4ebf\u7684\u5730\u5740\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u62a5\u6587\u683c\u5f0f<\/td>\n<td align=\"left\">IPv4\u62a5\u5934\u5305\u542b\u53ef\u9009\u5b57\u6bb5Options\uff0c\u5185 \u5bb9\u6d89\u53caSecurity\u3001Timestamp\u3001 Record route\u7b49\uff0c\u8fd9\u4e9bOptions\u53ef\u4ee5\u5c06 IPv4\u62a5\u5934\u957f\u5ea6\u4ece20\u5b57\u8282\u6269\u5145\u523060\u5b57 \u8282\u3002\u643a\u5e26\u8fd9\u4e9bOptions\u7684IPv4\u62a5\u6587\u5728 \u8f6c\u53d1\u8fc7\u7a0b\u4e2d\u5f80\u5f80\u9700\u8981\u4e2d\u95f4\u8def\u7531\u8f6c\u53d1 \u8bbe\u5907\u8fdb\u884c\u8f6f\u4ef6\u5904\u7406\uff0c\u5bf9\u4e8e\u6027\u80fd\u662f\u4e2a \u5f88\u5927\u7684\u6d88\u8017\uff0c\u56e0\u6b64\u5b9e\u9645\u4e2d\u4e5f\u5f88\u5c11\u4f7f \u7528\u3002<\/td>\n<td>IPv6\u548cIPv4\u76f8\u6bd4\uff0c\u53bb\u9664\u4e86IHL\u3001 Identifier\u3001Flag\u3001Fragment Offset\u3001Header Checksum\u3001 Option\u3001Paddiing\u57df\uff0c\u53ea\u589e\u52a0\u4e86\u6d41 \u6807\u7b7e\u57df\uff0c\u56e0\u6b64IPv6\u62a5\u6587\u5934\u7684\u5904\u7406 \u8f83IPv4\u66f4\u4e3a\u7b80\u5316\uff0c\u63d0\u9ad8\u4e86\u5904\u7406\u6548 \u7387\u3002\u53e6\u5916\uff0cIPv6\u4e3a\u4e86\u66f4\u597d\u652f\u6301\u5404 \u79cd\u9009\u9879\u5904\u7406\uff0c\u63d0\u51fa\u4e86\u6269\u5c55\u5934\u7684\u6982 \u5ff5\uff0c\u65b0\u589e\u9009\u9879\u65f6\u4e0d\u5fc5\u4fee\u6539\u73b0\u6709\u7ed3 \u6784\uff0c\u7406\u8bba\u4e0a\u53ef\u4ee5\u65e0\u9650\u6269\u5c55\uff0c\u4f53\u73b0 \u4e86\u4f18\u5f02\u7684\u7075\u6d3b\u6027\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u81ea\u52a8\u914d\u7f6e\u548c\u91cd\u65b0\u7f16\u5236<\/td>\n<td align=\"left\">\u7531\u4e8eIPv4\u5730\u5740\u53ea\u670932\u6bd4\u7279\uff0c\u5e76\u4e14\u5730 \u5740\u5206\u914d\u4e0d\u5747\u8861\uff0c\u5bfc\u81f4\u5728\u7f51\u7edc\u6269\u5bb9\u6216 \u91cd\u65b0\u90e8\u7f72\u65f6\uff0c\u7ecf\u5e38\u9700\u8981\u91cd\u65b0\u5206\u914dIP \u5730\u5740\uff0c\u56e0\u6b64\u9700\u8981\u80fd\u591f\u8fdb\u884c\u81ea\u52a8\u914d\u7f6e \u548c\u91cd\u65b0\u7f16\u5740\uff0c\u4ee5\u51cf\u5c11\u7ef4\u62a4\u5de5\u4f5c\u91cf\u3002 \u76ee\u524dIPv4\u7684\u81ea\u52a8\u914d\u7f6e\u548c\u91cd\u65b0\u7f16\u5740\u673a \u5236\u4e3b\u8981\u4f9d\u9760DHCP\u534f\u8bae\u3002<\/td>\n<td>IPv6\u534f\u8bae\u5185\u7f6e\u652f\u6301\u901a\u8fc7\u5730\u5740\u81ea\u52a8 \u914d\u7f6e\u65b9\u5f0f\u4f7f\u4e3b\u673a\u81ea\u52a8\u53d1\u73b0\u7f51\u7edc\u5e76 \u83b7\u53d6IPv6\u5730\u5740\uff0c\u5927\u5927\u63d0\u9ad8\u4e86\u5185\u90e8 \u7f51\u7edc\u7684\u53ef\u7ba1\u7406\u6027\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u8def\u7531\u805a\u5408<\/td>\n<td align=\"left\">\u7531\u4e8eIPv4\u53d1\u5c55\u521d\u671f\u7684\u5206\u914d\u89c4\u5212\u95ee \u9898\uff0c\u9020\u6210\u8bb8\u591aIPv4\u5730\u5740\u5206\u914d\u4e0d\u8fde \u7eed\uff0c\u4e0d\u80fd\u6709\u6548\u805a\u5408\u8def\u7531\u3002\u65e5\u76ca\u5e9e\u5927 \u7684\u8def\u7531\u8868\u8017\u7528\u5927\u91cf\u5185\u5b58\uff0c\u5bf9\u8bbe\u5907\u6210 \u672c\u548c\u8f6c\u53d1\u6548\u7387\u4ea7\u751f\u5f71\u54cd\uff0c\u8fd9\u4e00\u95ee\u9898 \u4fc3\u4f7f\u8bbe\u5907\u5236\u9020\u5546\u4e0d\u65ad\u5347\u7ea7\u5176\u4ea7\u54c1\uff0c \u4ee5\u63d0\u9ad8\u8def\u7531\u5bfb\u5740\u548c\u8f6c\u53d1\u6027\u80fd\u3002<\/td>\n<td>\u5de8\u5927\u7684\u5730\u5740\u7a7a\u95f4\u4f7f\u5f97IPv6\u53ef\u4ee5\u65b9 \u4fbf\u7684\u8fdb\u884c\u5c42\u6b21\u5316\u7f51\u7edc\u90e8\u7f72\u3002\u5c42\u6b21 \u5316\u7684\u7f51\u7edc\u7ed3\u6784\u53ef\u4ee5\u65b9\u4fbf\u7684\u8fdb\u884c\u8def \u7531\u805a\u5408\uff0c\u63d0\u9ad8\u4e86\u8def\u7531\u8f6c\u53d1\u6548\u7387\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u7aef\u5bf9\u7aef\u5b89\u5168<\/td>\n<td align=\"left\">IPv4\u534f\u8bae\u5236\u5b9a\u65f6\u5e76\u6ca1\u6709\u4ed4\u7ec6\u9488\u5bf9\u5b89\u5168\u6027\u8fdb\u884c\u8bbe\u8ba1\uff0c\u56e0\u6b64\u56fa\u6709\u7684\u6846\u67b6\u7ed3\u6784\u5e76\u4e0d\u80fd\u652f\u6301\u7aef\u5230\u7aef\u7684\u5b89\u5168\u3002<\/td>\n<td>IPv6\u4e2d\uff0c\u7f51\u7edc\u5c42\u652f\u6301IPSec\u7684\u8ba4\u8bc1 \u548c\u52a0\u5bc6\uff0c\u652f\u6301\u7aef\u5230\u7aef\u7684\u5b89\u5168\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">QoS<\/td>\n<td align=\"left\">\u968f\u7740\u7f51\u7edc\u4f1a\u8bae\u3001\u7f51\u7edc\u7535\u8bdd\u3001\u7f51\u7edc\u7535 \u89c6\u8fc5\u901f\u666e\u53ca\u4e0e\u4f7f\u7528\uff0c\u5ba2\u6237\u8981\u6c42\u6709\u66f4 \u597d\u7684QoS\u6765\u4fdd\u969c\u8fd9\u4e9b\u97f3\u89c6\u9891\u5b9e\u65f6\u8f6c \u53d1\u3002IPv4\u5e76\u6ca1\u6709\u4e13\u95e8\u7684\u624b\u6bb5\u5bf9QoS \u8fdb\u884c\u652f\u6301\u3002<\/td>\n<td>IPv6\u65b0\u589e\u4e86\u6d41\u6807\u8bb0\u57df\uff0c\u63d0\u4f9bQoS \u4fdd\u8bc1\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u652f\u6301\u79fb\u52a8\u7279\u6027<\/td>\n<td align=\"left\">\u968f\u7740Internet\u7684\u53d1\u5c55\uff0c\u79fb\u52a8IPv4\u51fa\u73b0 \u4e86\u4e00\u4e9b\u95ee\u9898\uff0c\u6bd4\u5982:\u4e09\u89d2\u8def\u7531\uff0c\u6e90 \u5730\u5740\u8fc7\u6ee4\u7b49\u3002<\/td>\n<td>IPv6\u534f\u8bae\u89c4\u5b9a\u5fc5\u987b\u652f\u6301\u79fb\u52a8\u7279 \u6027\u3002\u548c\u79fb\u52a8IPv4\u76f8\u6bd4\uff0c\u79fb\u52a8IPv6 \u4f7f\u7528\u90bb\u5c45\u53d1\u73b0\u529f\u80fd\u53ef\u76f4\u63a5\u5b9e\u73b0\u5916 \u5730\u7f51\u7edc\u7684\u53d1\u73b0\u5e76\u5f97\u5230\u8f6c\u4ea4\u5730\u5740\uff0c \u800c\u4e0d\u5fc5\u4f7f\u7528\u5916\u5730\u4ee3\u7406\u3002\u540c\u65f6\uff0c\u5229 \u7528\u8def\u7531\u6269\u5c55\u5934\u548c\u76ee\u7684\u5730\u5740\u6269\u5c55\u5934 \u79fb\u52a8\u8282\u70b9\u548c\u5bf9\u7b49\u8282\u70b9\u4e4b\u95f4\u53ef\u4ee5\u76f4 \u63a5\u901a\u4fe1\uff0c\u89e3\u51b3\u4e86\u79fb\u52a8IPv4\u7684\u4e09\u89d2 \u8def\u7531\u3001\u6e90\u5730\u5740\u8fc7\u6ee4\u95ee\u9898\uff0c\u79fb\u52a8\u901a \u4fe1\u5904\u7406\u6548\u7387\u66f4\u9ad8\u4e14\u5bf9\u5e94\u7528\u5c42\u900f \u660e\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>IPv6 \u5730\u5740<\/h2>\n<h3>\u8868\u793a\u65b9\u6cd5<\/h3>\n<p>IPv6 \u603b\u5171\u6709 128 \u4f4d\uff0c\u901a\u8fc7\u5206\u4e3a8\u7ec4\uff0c\u6bcf\u7ec4 16 \u4f4d\uff0c\u7531 4 \u4e2a\u5341\u516d\u8fdb\u5236\u6570\u8868\u793a\u3002\u6bcf\u7ec4\u4e4b\u95f4\u7531\u5192\u53f7\u5206\u9694\u3002\u5982\uff1a<code>FC00:0000:130F:0000:0000:09C0:876A:130B<\/code>\u3002\u4e3a\u4e86\u65b9\u4fbf\u4e66\u5199\uff0c\u63d0\u4f9b\u4e86\u4e00\u4e9b\u538b\u7f29\u540e\u7684\u5199\u6cd5\uff1a<\/p>\n<ul>\n<li>\u53ef\u4ee5\u7701\u7565\u524d\u7f000\u3002\u6240\u4ee5\u8fd9\u4e2a\u5730\u5740\u8fd8\u53ef\u4ee5\u5199\u6210\uff1a<code>FC00:0:130F:0:0:9C0:876A:130B<\/code>\u3002<\/li>\n<li>\u5730\u5740\u4e2d\u5305\u542b\u7684\u8fde\u7eed\u4e24\u4e2a\u6216\u591a\u4e2a\u5747\u4e3a0\u7684\u7ec4\uff0c\u53ef\u4ee5\u7528\u53cc\u5192\u53f7&#8221;::&#8221;\u4ee3\u66ff\u3002\u6240\u4ee5\u8fdb\u4e00\u6b65\u7f29\u5199\u6210\uff1a<code>FC00:0:130F::9C0:876A:130B<\/code>\u3002\u4e0d\u8fc7\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4e00\u4e2a IPv6 \u5730\u5740\u4e2d\u53ea\u80fd\u6709\u4e00\u4e2a &#8220;::&#8221;\uff0c\u56e0\u4e3a\u5982\u679c\u6709\u591a\u4e2a\u7684\u8bdd\uff0c\u5c31\u65e0\u6cd5\u8fa8\u522b\u51fa\u6bcf\u4e2a &#8220;::&#8221; \u4ee3\u8868\u51e0\u7ec4 0\u3002<\/li>\n<\/ul>\n<h3>\u5730\u5740\u7ed3\u6784<\/h3>\n<p>\u7c7b\u4f3c IPv4 \u7684\u8bbe\u8ba1\uff0c\u4e00\u4e2a IPv6 \u5730\u5740\u4e5f\u662f\u7531\u4e24\u90e8\u5206\u7ec4\u6210\uff1a<\/p>\n<ul>\n<li>\u7f51\u7edc\u524d\u7f00\uff1an \u4f4d\uff0c\u76f8\u5f53\u4e8e IPv4 \u7684\u7f51\u7edc\u53f7\u3002<\/li>\n<li>\u63a5\u53e3\u6807\u8bc6\uff1a128-n\u4f4d\uff0c\u76f8\u5f53\u4e8e IPv4 \u5730\u5740\u4e2d\u7684\u4e3b\u673a\u53f7\u3002<\/li>\n<\/ul>\n<h3>\u5730\u5740\u5206\u7c7b<\/h3>\n<p>IPv6 \u5730\u5740\u5206\u4e3a\u5355\u64ad\u5730\u5740\uff0c\u4efb\u64ad\u5730\u5740\uff0c\u7ec4\u64ad\u5730\u5740\u3002\u76f8\u6bd4\u4e8e IPv4\uff0c\u53d6\u6d88\u4e86\u5e7f\u64ad\u5730\u5740\uff0c\u4ee5\u66f4\u4e30\u5bcc\u7684\u7ec4\u64ad\u5730\u5740\u4ee3\u66ff\uff0c\u540c\u65f6\u589e\u52a0\u4e86\u4efb\u64ad\u5730\u5740\u3002<\/p>\n<h4>\u5355\u64ad\u5730\u5740<\/h4>\n<p>\u5355\u64ad\u5730\u5740\u7528\u6765\u8868\u793a\u4e00\u4e2a\u8282\u70b9\u7684\u4e00\u4e2a\u7f51\u7edc\u63a5\u53e3\u7684\u5730\u5740\u3002\u6709\u4ee5\u4e0b\u51e0\u79cd\u5355\u64ad\u5730\u5740\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th align=\"left\">\u7c7b\u578b<\/th>\n<th>\u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"left\">\u672a\u6307\u5b9a\u5730\u5740<\/td>\n<td>\u6307 <code>::\/128<\/code>\u3002\u8be5\u5730\u5740\u8868\u793a\u8bb4\u6b4c\u63a5\u53e3\u6216\u8005\u8282\u70b9\u8fd8\u6ca1\u6709 IP \u5730\u5740\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u73af\u56de\u5730\u5740<\/td>\n<td>\u6307<code>::1\/128<\/code>\u3002\u4e0e IPv4 \u4e2d\u7684 <code>127.0.0.1<\/code> \u4f5c\u7528\u76f8\u540c<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u5168\u7403\u5355\u64ad\u5730\u5740<\/td>\n<td>\u7c7b\u4f3c\u4e8e IPv4 \u4e2d\u7684\u5355\u64ad\u5730\u5740\u3002\u7531 <code>\u5168\u7403\u8def\u7531\u524d\u7f00(Global routing prefix\uff0c\u81f3\u5c1148\u4f4d)+\u5b50\u7f51ID(Subnet ID)+\u63a5\u53e3\u6807\u8bc6(Interface ID)<\/code>\u7ec4\u6210\u3002\u5168\u7403\u8def\u7531\u524d\u7f00\u7531\u63d0\u4f9b\u5546\u6307\u5b9a\u7ed9\u4e00\u4e2a\u7ec4\u7ec7\u673a\u6784\uff0c\u56e0\u6b64\u4e5f\u53ef\u4ee5\u8d77\u5230\u805a\u5408\u8def\u7531\u7684\u4f5c\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u94fe\u8def\u672c\u5730\u5730\u5740<\/td>\n<td>\u94fe\u8def\u672c\u5730\u5730\u5740\u662f IPv6 \u4e2d\u7684\u5e94\u7528\u8303\u56f4\u53d7\u9650\u5236\u7684\u5730\u5740\u7c7b\u578b\uff0c\u53ea\u80fd\u5728\u8fde\u63a5\u5230\u540c\u4e00\u672c\u5730\u94fe \u8def\u7684\u8282\u70b9\u4e4b\u95f4\u4f7f\u7528\u3002\u5b83\u4f7f\u7528\u4e86\u7279\u5b9a\u7684\u672c\u5730\u94fe\u8def\u524d\u7f00FE80::\/10(\u6700\u9ad810\u4f4d\u503c\u4e3a 1111111010)\uff0c\u540c\u65f6\u5c06\u63a5\u53e3\u6807\u8bc6\u6dfb\u52a0\u5728\u540e\u9762\u4f5c\u4e3a\u5730\u5740\u7684\u4f4e64\u6bd4\u7279\u3002\u5f53\u4e00\u4e2a\u8282\u70b9\u542f\u52a8IPv6\u534f\u8bae\u6808\u65f6\uff0c\u542f\u52a8\u65f6\u8282\u70b9\u7684\u6bcf\u4e2a\u63a5\u53e3\u4f1a\u81ea\u52a8\u914d\u7f6e\u4e00\u4e2a\u94fe\u8def\u672c\u5730 \u5730\u5740(\u5176\u56fa\u5b9a\u7684\u524d\u7f00+EUI-64\u89c4\u5219\u5f62\u6210\u7684\u63a5\u53e3\u6807\u8bc6)\u3002\u5728 IPv4 \u4e2d\uff0c\u94fe\u8def\u672c\u5730\u5730\u5740\u4e3a 169.254.0.0\/16<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u552f\u4e00\u672c\u5730\u5730\u5740<\/td>\n<td>\u552f\u4e00\u672c\u5730\u5730\u5740\u662f\u53e6\u4e00\u79cd\u5e94\u7528\u8303\u56f4\u53d7\u9650\u7684\u5730\u5740\uff0c\u5b83\u4ec5\u80fd\u5728\u4e00\u4e2a\u7ad9\u70b9\u5185\u4f7f\u7528\u3002\u7531\u4e8e\u672c\u5730\u7ad9\u70b9\u5730\u5740\u7684\u5e9f\u9664(RFC3879)\uff0c\u552f\u4e00\u672c\u5730\u5730\u5740\u88ab\u7528\u6765\u4ee3\u66ff\u672c\u5730\u7ad9\u70b9\u5730\u5740\u3002\u552f\u4e00\u672c\u5730\u5730\u5740\u7684\u4f5c\u7528\u7c7b\u4f3c\u4e8eIPv4\u4e2d\u7684\u79c1\u7f51\u5730\u5740\uff0c\u4efb\u4f55\u6ca1\u6709\u7533\u8bf7\u5230\u63d0\u4f9b\u5546\u5206\u914d\u7684\u5168 \u7403\u5355\u64ad\u5730\u5740\u7684\u7ec4\u7ec7\u673a\u6784\u90fd\u53ef\u4ee5\u4f7f\u7528\u552f\u4e00\u672c\u5730\u5730\u5740\u3002\u552f\u4e00\u672c\u5730\u5730\u5740\u53ea\u80fd\u5728\u672c\u5730\u7f51\u7edc\u5185\u90e8\u88ab\u8def\u7531\u8f6c\u53d1\u800c\u4e0d\u4f1a\u5728\u5168\u7403\u7f51\u7edc\u4e2d\u88ab\u8def\u7531\u8f6c\u53d1\u3002\u552f\u4e00\u672c\u5730\u5730\u5740\u7684\u56fa\u5b9a\u524d\u7f00\u4e3a<code>FC00::\/7<\/code>,\u4e8c\u8fdb\u5236\u8868\u793a\u4e3a <code>1111 110<\/code>\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>\u4efb\u64ad\u5730\u5740<\/h4>\n<p>\u4efb\u64ad\u5730\u5740\u4e00\u822c\u7528\u6765\u8868\u793a\u4e00\u7ec4\u8282\u70b9\u4e0a\u7684\u63a5\u53e3\uff0c\u5f53\u6570\u636e\u5305\u53d1\u5f80\u4efb\u64ad\u5730\u5740\u65f6\uff0c\u4e2d\u95f4\u8def\u7531\u8bbe\u5907\u4f1a\u5c06\u6570\u636e\u5305\u53d1\u5f80\u6700\u8fd1\u7684\u4e00\u4e2a\u8282\u70b9\u4e0a\u7684\u63a5\u53e3\u3002\u6240\u4ee5\u53ef\u4ee5\u770b\u51fa\uff0c\u4efb\u64ad\u5730\u5740\u662f\u88ab\u8bbe\u8ba1\u7528\u6765\u7ed9\u591a\u4e2a\u4e3b\u673a\u6216\u8005\u8282\u70b9\u63d0\u4f9b\u76f8\u540c\u670d\u52a1\u65f6\u63d0\u4f9b\u5197\u4f59\u529f\u80fd\u548c\u8d1f\u8f7d\u5747\u8861\u529f\u80fd\u7684\u3002\u4e0d\u8fc7\u76ee\u524d\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4efb\u64ad\u5730\u5740\u53ea\u80fd\u5206\u914d\u7ed9\u8def\u7531\u8bbe\u5907\uff0c\u5e76\u4e0d\u80fd\u5e94\u7528\u4e8e\u4e3b\u673a\u7b49\u8bbe\u5907\u3002\u5e76\u4e14\u4efb\u64ad\u5730\u5740\u4e0d\u80fd\u4f5c\u4e3a IPv6 \u62a5\u6587\u7684\u6e90\u5730\u5740\u3002<\/p>\n<p>\u4efb\u64ad\u5730\u5740\u5e76\u6ca1\u6709\u5355\u72ec\u7684\u5730\u5740\u7a7a\u95f4\uff0c\u548c\u5355\u64ad\u5730\u5740\u4f7f\u7528\u76f8\u540c\u7684\u5730\u5740\u7a7a\u95f4\u3002<\/p>\n<h4>\u7ec4\u64ad\u5730\u5740<\/h4>\n<p>IPv6\u7684\u7ec4\u64ad\u4e0eIPv4\u76f8\u540c\uff0c\u7528\u6765\u6807\u8bc6\u4e00\u7ec4\u63a5\u53e3\uff0c\u4e00\u822c\u8fd9\u4e9b\u63a5\u53e3\u5c5e\u4e8e\u4e0d\u540c\u7684\u8282\u70b9\u3002\u4e00\u4e2a\u8282\u70b9 \u53ef\u80fd\u5c5e\u4e8e0\u5230\u591a\u4e2a\u7ec4\u64ad\u7ec4\u3002\u53d1\u5f80\u7ec4\u64ad\u5730\u5740\u7684\u62a5\u6587\u88ab\u7ec4\u64ad\u5730\u5740\u6807\u8bc6\u7684\u6240\u6709\u63a5\u53e3\u63a5\u6536\u3002\u4f8b\u5982 \u7ec4\u64ad\u5730\u5740FF02::1\u8868\u793a\u94fe\u8def\u672c\u5730\u8303\u56f4\u7684\u6240\u6709\u8282\u70b9\uff0c\u7ec4\u64ad\u5730\u5740FF02::2\u8868\u793a\u94fe\u8def\u672c\u5730\u8303\u56f4\u7684 \u6240\u6709\u8def\u7531\u5668\u3002<\/p>\n<p>\u4e00\u4e2aIPv6\u7ec4\u64ad\u5730\u5740\u7531\u524d\u7f00\uff0c\u6807\u5fd7(Flag)\u5b57\u6bb5\u3001\u8303\u56f4(Scope)\u5b57\u6bb5\u4ee5\u53ca\u7ec4\u64ad\u7ec4ID (Global ID)4\u4e2a\u90e8\u5206\u7ec4\u6210:<\/p>\n<ul>\n<li>\u524d\u7f00:IPv6\u7ec4\u64ad\u5730\u5740\u7684\u524d\u7f00\u662fFF00::\/8\u3002<\/p>\n<\/li>\n<li>\n<p>\u6807\u5fd7\u5b57\u6bb5(Flag):\u957f\u5ea64bit\uff0c\u76ee\u524d\u53ea\u4f7f\u7528\u4e86\u6700\u540e\u4e00\u4e2a\u6bd4\u7279(\u524d\u4e09\u4f4d\u5fc5\u987b\u7f6e0)\uff0c \u5f53\u8be5\u4f4d\u503c\u4e3a0\u65f6\uff0c\u8868\u793a\u5f53\u524d\u7684\u7ec4\u64ad\u5730\u5740\u662f\u7531IANA\u6240\u5206\u914d\u7684\u4e00\u4e2a\u6c38\u4e45\u5206\u914d\u5730\u5740;\u5f53 \u8be5\u503c\u4e3a1\u65f6\uff0c\u8868\u793a\u5f53\u524d\u7684\u7ec4\u64ad\u5730\u5740\u662f\u4e00\u4e2a\u4e34\u65f6\u7ec4\u64ad\u5730\u5740(\u975e\u6c38\u4e45\u5206\u914d\u5730\u5740)\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8303\u56f4\u5b57\u6bb5<\/strong>(Scope):\u957f\u5ea64bit\uff0c\u7528\u6765\u9650\u5236\u7ec4\u64ad\u6570\u636e\u6d41\u5728\u7f51\u7edc\u4e2d\u53d1\u9001\u7684\u8303\u56f4\uff0c\u8be5\u5b57 \u6bb5\u53d6\u503c\u548c\u542b\u4e49\u7684\u5bf9\u5e94\u5173\u7cfb\u5982\u56fe<strong>1-5<\/strong>\u6240\u793a\u3002<\/p>\n<\/li>\n<li>\n<p>\u7ec4\u64ad\u7ec4ID(Group ID):\u957f\u5ea6112bit\uff0c\u7528\u4ee5\u6807\u8bc6\u7ec4\u64ad\u7ec4\u3002\u76ee\u524d\uff0cRFC2373\u5e76\u6ca1\u6709\u5c06 \u6240\u6709\u7684112\u4f4d\u90fd\u5b9a\u4e49\u6210\u7ec4\u6807\u8bc6\uff0c\u800c\u662f\u5efa\u8bae\u4ec5\u4f7f\u7528\u8be5112\u4f4d\u7684\u6700\u4f4e32\u4f4d\u4f5c\u4e3a\u7ec4\u64ad\u7ec4 ID\uff0c\u5c06\u5269\u4f59\u768480\u4f4d\u90fd\u7f6e0\u3002\u8fd9\u6837\u6bcf\u4e2a\u7ec4\u64ad\u7ec4ID\u90fd\u6620\u5c04\u5230\u4e00\u4e2a\u552f\u4e00\u7684\u4ee5\u592a\u7f51\u7ec4\u64ad MAC\u5730\u5740(RFC2464)\u3002<\/p>\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2022\/02\/image-20220220175332438.png\" alt=\"image-20220220175332438\" \/><\/p>\n<p>\u88ab\u8bf7\u6c42\u8282\u70b9\u7ec4\u64ad\u5730\u5740\u901a\u8fc7\u8282\u70b9\u7684\u5355\u64ad\u6216\u4efb\u64ad\u5730\u5740\u751f\u6210\u3002\u5f53\u4e00\u4e2a\u8282\u70b9\u5177\u6709\u4e86\u5355\u64ad\u6216\u4efb\u64ad\u5730\u5740\uff0c\u5c31\u4f1a\u5bf9\u5e94\u751f\u6210\u4e00\u4e2a\u88ab\u8bf7\u6c42\u8282\u70b9\u7ec4\u64ad\u5730\u5740\uff0c\u5e76\u4e14\u52a0\u5165\u8fd9\u4e2a\u7ec4\u64ad\u7ec4\u3002\u4e00\u4e2a\u5355\u64ad\u5730\u5740\u6216\u4efb\u64ad\u5730\u5740\u5bf9\u5e94\u4e00\u4e2a\u88ab\u8bf7\u6c42\u8282\u70b9\u7ec4\u64ad\u5730\u5740\u3002\u8be5\u5730\u5740\u4e3b\u8981\u7528\u4e8e\u90bb\u5c45\u53d1\u73b0\u673a\u5236\u548c\u5730\u5740\u91cd\u590d\u68c0\u6d4b\u529f\u80fd\u3002<\/p>\n<p>IPv6\u4e2d\u6ca1\u6709\u5e7f\u64ad\u5730\u5740\uff0c\u4e5f\u4e0d\u4f7f\u7528ARP\u3002\u4f46\u662f\u4ecd\u7136\u9700\u8981\u4eceIP\u5730\u5740\u89e3\u6790\u5230MAC\u5730\u5740\u7684 \u529f\u80fd\u3002\u5728IPv6\u4e2d\uff0c\u8fd9\u4e2a\u529f\u80fd\u901a\u8fc7\u90bb\u5c45\u8bf7\u6c42NS(Neighbor Solicitation)\u62a5\u6587\u5b8c\u6210\u3002 \u5f53\u4e00\u4e2a\u8282\u70b9\u9700\u8981\u89e3\u6790\u67d0\u4e2aIPv6\u5730\u5740\u5bf9\u5e94\u7684MAC\u5730\u5740\u65f6\uff0c\u4f1a\u53d1\u9001NS\u62a5\u6587\uff0c\u8be5\u62a5\u6587\u76ee\u7684IP\u5c31\u662f\u9700\u8981\u89e3\u6790\u7684IPv6\u5730\u5740\u5bf9\u5e94\u7684\u88ab\u8bf7\u6c42\u8282\u70b9\u7ec4\u64ad\u5730\u5740;\u53ea\u6709\u5177\u6709\u8be5\u7ec4\u64ad\u5730 \u5740\u7684\u8282\u70b9\u4f1a\u68c0\u67e5\u5904\u7406\u3002<\/p>\n<p>\u88ab\u8bf7\u6c42\u8282\u70b9\u7ec4\u64ad\u5730\u5740\u7531\u524d\u7f00FF02::1:FF00:0\/104\u548c\u5355\u64ad\u5730\u5740\u7684\u6700\u540e24\u4f4d\u7ec4\u6210\u3002<\/p>\n<h2>IPv6 \u62a5\u6587\u683c\u5f0f<\/h2>\n<p>IPv6 \u9664\u4e86\u5728\u5927\u5c0f\u4e0a\u505a\u4e86\u53d8\u52a8\uff0c\u4e5f\u9488\u5bf9 IPv4 \u62a5\u6587\u683c\u5f0f\u5728\u5b9e\u9645\u5e94\u7528\u573a\u666f\u4e2d\u7684\u8bbe\u8ba1\u4e0d\u5408\u7406\u4e4b\u5904\u505a\u4e86\u4f18\u5316\u3002IPv6 \u62a5\u6587\u4e3b\u8981\u7531\u4e09\u90e8\u5206\u7ec4\u6210\uff1a<\/p>\n<ul>\n<li>IPv6 \u57fa\u672c\u62a5\u5934\uff1a8\u4e2a\u5b57\u6bb5\uff0c\u56fa\u5b9a\u4e3a 40 \u5b57\u8282\u3002<\/li>\n<li>IPv6 \u6269\u5c55\u62a5\u5934\uff1a\u6269\u5c55\u62a5\u5934\u662f\u94fe\u5f0f\u7ed3\u6784\u7684\uff0c\u7406\u8bba\u4e0a\u53ef\u65e0\u9650\u6269\u5c55<\/li>\n<li>\u4e0a\u5c42\u534f\u8bae\u6570\u636e\u5355\u5143\uff1a\u4e00\u822c\u7531\u4e0a\u5c42\u534f\u8bae\u62a5\u5934\u548c\u5b83\u7684\u6709\u6548\u8f7d\u8377\u6784\u6210\uff0c\u6709\u6548\u8f7d\u8377\u53ef\u4ee5\u662f\u4e00\u4e2a ICMPv6 \u62a5\u6587\u3001\u4e00\u4e2a TCP \u62a5\u6587\u6216\u4e00\u4e2a UDP \u62a5\u6587\u3002<\/li>\n<\/ul>\n<p>\u4e00\u4e2a IPv6 \u7684\u57fa\u672c\u62a5\u5934\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2022\/02\/image-20220220193727771.png\" alt=\"image-20220220193727771\" \/><\/p>\n<p>\u8fd9\u4e9b\u5b57\u6bb5\u7684\u89e3\u91ca\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>Version:\u7248\u672c\u53f7\uff0c\u957f\u5ea6\u4e3a4bit\u3002\u5bf9\u4e8eIPv6\uff0c\u8be5\u503c\u4e3a6\u3002<\/p>\n<\/li>\n<li>\n<p>Traffic Class:\u6d41\u7c7b\u522b\uff0c\u957f\u5ea6\u4e3a8bit\u3002\u7b49\u540c\u4e8eIPv4\u4e2d\u7684TOS\u5b57\u6bb5\uff0c\u8868\u793aIPv6\u6570\u636e\u62a5\u7684 \u7c7b\u6216\u4f18\u5148\u7ea7\uff0c\u4e3b\u8981\u5e94\u7528\u4e8eQoS\u3002<\/p>\n<\/li>\n<li>\n<p>Flow Label:\u6d41\u6807\u7b7e\uff0c\u957f\u5ea6\u4e3a20bit\u3002IPv6\u4e2d\u7684\u65b0\u589e\u5b57\u6bb5\uff0c\u7528\u4e8e\u533a\u5206\u5b9e\u65f6\u6d41\u91cf\uff0c\u4e0d\u540c \u7684\u6d41\u6807\u7b7e+\u6e90\u5730\u5740\u53ef\u4ee5\u552f\u4e00\u786e\u5b9a\u4e00\u6761\u6570\u636e\u6d41\uff0c\u4e2d\u95f4\u7f51\u7edc\u8bbe\u5907\u53ef\u4ee5\u6839\u636e\u8fd9\u4e9b\u4fe1\u606f\u66f4\u52a0 \u9ad8\u6548\u7387\u7684\u533a\u5206\u6570\u636e\u6d41\u3002<\/p>\n<\/li>\n<li>\n<p>Payload Length:\u6709\u6548\u8f7d\u8377\u957f\u5ea6\uff0c\u957f\u5ea6\u4e3a16bit\u3002\u6709\u6548\u8f7d\u8377\u662f\u6307\u7d27\u8ddfIPv6\u62a5\u5934\u7684\u6570\u636e \u62a5\u7684\u5176\u5b83\u90e8\u5206(\u5373\u6269\u5c55\u62a5\u5934\u548c\u4e0a\u5c42\u534f\u8bae\u6570\u636e\u5355\u5143)\u3002\u8be5\u5b57\u6bb5\u53ea\u80fd\u8868\u793a\u6700\u5927\u957f\u5ea6\u4e3a 65535\u5b57\u8282\u7684\u6709\u6548\u8f7d\u8377\u3002\u5982\u679c\u6709\u6548\u8f7d\u8377\u7684\u957f\u5ea6\u8d85\u8fc7\u8fd9\u4e2a\u503c\uff0c\u8be5\u5b57\u6bb5\u4f1a\u7f6e0\uff0c\u800c\u6709\u6548 \u8f7d\u8377\u7684\u957f\u5ea6\u7528\u9010\u8df3\u9009\u9879\u6269\u5c55\u62a5\u5934\u4e2d\u7684\u8d85\u5927\u6709\u6548\u8f7d\u8377\u9009\u9879\u6765\u8868\u793a\u3002<\/p>\n<\/li>\n<li>\n<p>Next Header:\u4e0b\u4e00\u4e2a\u62a5\u5934\uff0c\u957f\u5ea6\u4e3a8bit\u3002\u8be5\u5b57\u6bb5\u5b9a\u4e49\u7d27\u8ddf\u5728IPv6\u62a5\u5934\u540e\u9762\u7684\u7b2c\u4e00\u4e2a \u6269\u5c55\u62a5\u5934(\u5982\u679c\u5b58\u5728)\u7684\u7c7b\u578b\uff0c\u6216\u8005\u4e0a\u5c42\u534f\u8bae\u6570\u636e\u5355\u5143\u4e2d\u7684\u534f\u8bae\u7c7b\u578b\u3002<\/p>\n<\/li>\n<li>\n<p>Hop Limit:\u8df3\u6570\u9650\u5236\uff0c\u957f\u5ea6\u4e3a8bit\u3002\u8be5\u5b57\u6bb5\u7c7b\u4f3c\u4e8eIPv4\u4e2d\u7684Time to Live\u5b57\u6bb5\uff0c\u5b83 \u5b9a\u4e49\u4e86IP\u6570\u636e\u62a5\u6240\u80fd\u7ecf\u8fc7\u7684\u6700\u5927\u8df3\u6570\u3002\u6bcf\u7ecf\u8fc7\u4e00\u4e2a\u8bbe\u5907\uff0c\u8be5\u6570\u503c\u51cf\u53bb1\uff0c\u5f53\u8be5\u5b57\u6bb5 \u7684\u503c\u4e3a0\u65f6\uff0c\u6570\u636e\u62a5\u5c06\u88ab\u4e22\u5f03\u3002<\/p>\n<\/li>\n<li>\n<p>Source Address:\u6e90\u5730\u5740\uff0c\u957f\u5ea6\u4e3a128bit\u3002\u8868\u793a\u53d1\u9001\u65b9\u7684\u5730\u5740\u3002<\/p>\n<\/li>\n<li>Destination Address:\u76ee\u7684\u5730\u5740\uff0c\u957f\u5ea6\u4e3a128bit\u3002\u8868\u793a\u63a5\u6536\u65b9\u7684\u5730\u5740\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u4e0a\u8ff0\u63cf\u8ff0\u53ef\u4ee5\u77e5\u9053\uff0cIPv6 \u7684\u57fa\u672c\u62a5\u5934\u76f8\u6bd4\u4e8e IPv4 \u7684\u62a5\u5934\u505a\u4e86\u7b80\u5316\uff0c\u53bb\u9664\u4e86IHL\u3001identifiers\u3001Flags\u3001Fragment Offset\u3001Header Checksum\u3001 Options\u3001Paddiing\u57df\uff0c\u53ea\u589e\u4e86\u6d41\u6807\u7b7e\u57df\u3002\u8fd9\u6837\u7684\u8bbe\u8ba1\u53ef\u4ee5\u63d0\u5347\u8def\u7531\u8bbe\u5907\u5bf9\u6570\u636e\u7684\u5904\u7406\u6027\u80fd\u3002<\/p>\n<p>\u5728IPv4\u4e2d\uff0cIPv4\u62a5\u5934\u5305\u542b\u53ef\u9009\u5b57\u6bb5Options\uff0c\u5185\u5bb9\u6d89\u53casecurity\u3001Timestamp\u3001Record route \u7b49\uff0c\u8fd9\u4e9bOptions\u53ef\u4ee5\u5c06IPv4\u62a5\u5934\u957f\u5ea6\u4ece20\u5b57\u8282\u6269\u5145\u523060\u5b57\u8282\u3002\u5728\u8f6c\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u5904\u7406\u643a\u5e26\u8fd9\u4e9bOptions\u7684IPv4\u62a5\u6587\u4f1a\u5360\u7528\u8bbe\u5907\u5f88\u5927\u7684\u8d44\u6e90\uff0c\u56e0\u6b64\u5b9e\u9645\u4e2d\u4e5f\u5f88\u5c11\u4f7f\u7528\u3002<\/p>\n<p>IPv6\u5c06\u8fd9\u4e9bOptions\u4eceIPv6\u57fa\u672c\u62a5\u5934\u4e2d\u5265\u79bb\uff0c\u653e\u5230\u4e86\u6269\u5c55\u62a5\u5934\u4e2d\uff0c\u6269\u5c55\u62a5\u5934\u88ab\u7f6e\u4e8eIPv6 \u62a5\u5934\u548c\u4e0a\u5c42\u534f\u8bae\u6570\u636e\u5355\u5143\u4e4b\u95f4\u3002\u4e00\u4e2aIPv6\u62a5\u6587\u53ef\u4ee5\u5305\u542b0\u4e2a\u30011\u4e2a\u6216\u591a\u4e2a\u6269\u5c55\u62a5\u5934\uff0c\u4ec5 \u5f53\u9700\u8981\u8bbe\u5907\u6216\u76ee\u7684\u8282\u70b9\u505a\u67d0\u4e9b\u7279\u6b8a\u5904\u7406\u65f6\uff0c\u624d\u7531\u53d1\u9001\u65b9\u6dfb\u52a0\u4e00\u4e2a\u6216\u591a\u4e2a\u6269\u5c55\u5934\u3002\u4e0e IPv4\u4e0d\u540c\uff0cIPv6\u6269\u5c55\u5934\u957f\u5ea6\u4efb\u610f\uff0c\u4e0d\u53d740\u5b57\u8282\u9650\u5236\uff0c\u8fd9\u6837\u4fbf\u4e8e\u65e5\u540e\u6269\u5145\u65b0\u589e\u9009\u9879\uff0c\u8fd9\u4e00\u7279\u5f81\u52a0\u4e0a\u9009\u9879\u7684\u5904\u7406\u65b9\u5f0f\u4f7f\u5f97IPv6\u9009\u9879\u80fd\u5f97\u4ee5\u771f\u6b63\u7684\u5229\u7528\u3002\u4f46\u662f\u4e3a\u4e86\u63d0\u9ad8\u5904\u7406\u9009\u9879\u5934 \u548c\u4f20\u8f93\u5c42\u534f\u8bae\u7684\u6027\u80fd\uff0c\u6269\u5c55\u62a5\u5934\u603b\u662f8\u5b57\u8282\u957f\u5ea6\u7684\u6574\u6570\u500d\u3002<\/p>\n<p>\u5f53\u4f7f\u7528\u591a\u4e2a\u6269\u5c55\u62a5\u5934\u65f6\uff0c\u524d\u9762\u62a5\u5934\u7684Next Header\u5b57\u6bb5\u6307\u660e\u4e0b\u4e00\u4e2a\u6269\u5c55\u62a5\u5934\u7684\u7c7b\u578b\uff0c\u8fd9 \u6837\u5c31\u5f62\u6210\u4e86\u94fe\u72b6\u7684\u62a5\u5934\u5217\u8868\u3002\u76ee\u524d\uff0cRFC 2460\u4e2d\u5b9a\u4e49\u4e866\u4e2aIPv6\u6269\u5c55\u5934:\u9010\u8df3\u9009\u9879\u62a5\u5934\u3001\u76ee\u7684\u9009\u9879\u62a5\u5934\u3001\u8def\u7531\u62a5\u5934\u3001\u5206\u6bb5\u62a5\u5934\u3001\u8ba4\u8bc1\u62a5\u5934\u3001\u5c01\u88c5\u5b89\u5168\u51c0\u8f7d\u62a5\u5934\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2022\/02\/image-20220220194519027.png\" alt=\"image-20220220194519027\" \/><\/p>\n<h2>ICMPv6<\/h2>\n<p>ICMPv6(Internet Control Message Protocol for the IPv6)\u662fIPv6\u7684\u57fa\u7840\u534f\u8bae\u4e4b\u4e00\u3002<\/p>\n<p>\u5728IPv4\u4e2d\uff0cInternet\u63a7\u5236\u62a5\u6587\u534f\u8baeICMP(Internet Control Message Protocol)\u5411\u6e90\u8282\u70b9\u62a5 \u544a\u5173\u4e8e\u5411\u76ee\u7684\u5730\u4f20\u8f93IP\u6570\u636e\u5305\u8fc7\u7a0b\u4e2d\u7684\u9519\u8bef\u548c\u4fe1\u606f\u3002\u5b83\u4e3a\u8bca\u65ad\u3001\u4fe1\u606f\u548c\u7ba1\u7406\u76ee\u7684\u5b9a\u4e49 \u4e86\u4e00\u4e9b\u6d88\u606f\uff0c\u5982:\u76ee\u7684\u4e0d\u53ef\u8fbe\u3001\u6570\u636e\u5305\u8d85\u957f\u3001\u8d85\u65f6\u3001\u56de\u5e94\u8bf7\u6c42\u548c\u56de\u5e94\u5e94\u7b54\u7b49\u3002\u5728IPv6 \u4e2d\uff0cICMPv6\u9664\u4e86\u63d0\u4f9bICMPv4\u5e38\u7528\u7684\u529f\u80fd\u4e4b\u5916\uff0c\u8fd8\u662f\u5176\u5b83\u4e00\u4e9b\u529f\u80fd\u7684\u57fa\u7840\uff0c\u5982\u90bb\u63a5\u70b9 \u53d1\u73b0\u3001\u65e0\u72b6\u6001\u5730\u5740\u914d\u7f6e(\u5305\u62ec\u91cd\u590d\u5730\u5740\u68c0\u6d4b)\u3001PMTU\u53d1\u73b0\u7b49\u3002<\/p>\n<p>ICMPv6\u7684\u534f\u8bae\u7c7b\u578b\u53f7(\u5373IPv6\u62a5\u6587\u4e2d\u7684Next Header\u5b57\u6bb5\u7684\u503c)\u4e3a58\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2022\/02\/image-20220220201051653.png\" alt=\"image-20220220201051653\" \/><\/p>\n<p>\u62a5\u6587\u4e2d\u5b57\u6bb5\u89e3\u91ca\u5982\u4e0b:<\/p>\n<ul>\n<li>Type:\u8868\u660e\u6d88\u606f\u7684\u7c7b\u578b\uff0c0\u81f3127\u8868\u793a\u5dee\u9519\u62a5\u6587\u7c7b\u578b\uff0c128\u81f3255\u8868\u793a\u6d88\u606f\u62a5\u6587\u7c7b\u578b\u3002<\/p>\n<\/li>\n<li>\n<p>Code:\u8868\u793a\u6b64\u6d88\u606f\u7c7b\u578b\u7ec6\u5206\u7684\u7c7b\u578b\u3002<\/p>\n<\/li>\n<li>Checksum:\u8868\u793aICMPv6\u62a5\u6587\u7684\u6821\u9a8c\u548c\u3002<\/li>\n<\/ul>\n<h2>\u90bb\u5c45\u53d1\u73b0<\/h2>\n<p>\u90bb\u5c45\u53d1\u73b0\u534f\u8baeNDP(Neighbor Discovery Protocol)\u662fIPv6\u534f\u8bae\u4f53\u7cfb\u4e2d\u4e00\u4e2a\u91cd\u8981\u7684\u57fa\u7840\u534f \u8bae\u3002\u90bb\u5c45\u53d1\u73b0\u534f\u8bae\u66ff\u4ee3\u4e86IPv4\u7684ARP(Address Resolution Protocol)\u548cICMP\u8def\u7531\u5668\u53d1\u73b0 (Router Discovery)\uff0c\u5b83\u5b9a\u4e49\u4e86\u4f7f\u7528ICMPv6\u62a5\u6587\u5b9e\u73b0\u5730\u5740\u89e3\u6790\uff0c\u8ddf\u8e2a\u90bb\u5c45\u72b6\u6001\uff0c\u91cd\u590d \u5730\u5740\u68c0\u6d4b\uff0c\u8def\u7531\u5668\u53d1\u73b0\u4ee5\u53ca\u91cd\u5b9a\u5411\u7b49\u529f\u80fd\u3002<\/p>\n<h3>\u5730\u5740\u89e3\u6790<\/h3>\n<p>\u90bb\u5c45\u53d1\u73b0\u534f\u8bae NDP(Neighbor Discovery Protocol) \u662f\u57fa\u4e8e ICMPv6 \u7684\u4e00\u4e2a\u4e09\u5c42\u534f\u8bae\uff0c\u7528\u6765\u53d6\u4ee3 IPv4 \u7684 ARP \u534f\u8bae\u3002\u5176\u4ee5\u592a\u7f51\u534f\u8bae\u7c7b\u578b\u4e3a 0x86DD\u3002\u5730\u5740\u89e3\u6790\u8fc7\u7a0b\u4e2d\u4f7f\u7528\u4e86\u4e24\u79cd ICMPv6 \u62a5\u6587\uff1a\u90bb\u5c45\u8bf7\u6c42\u62a5\u6587 NS(Neighbor Solicitation) \u548c\u90bb\u5c45\u901a\u544a\u62a5\u6587 NA(Neighbor Advertisement)\u3002<\/p>\n<ul>\n<li>NS \u62a5\u6587\uff1aType \u5b57\u6bb5\u503c\u4e3a 135\uff0cCode \u5b57\u6bb5\u503c\u4e3a 0\uff0c\u5728\u5730\u5740\u89e3\u6790\u4e2d\u7684\u4f5c\u7528\u7c7b\u4f3c\u4e8e IPv4 \u4e2d\u7684 ARP \u8bf7\u6c42\u62a5\u6587\u3002<\/li>\n<li>NA \u62a5\u6587\uff1aType \u5b57\u6bb5\u503c\u4e3a 136\uff0cCode \u5b57\u6bb5\u503c\u4e3a0\uff0c\u5728\u5730\u5740\u89e3\u6790\u4e2d\u7684\u4f5c\u7528\u7c7b\u4f3c\u4e8e IPv4 \u4e2d\u7684 ARP \u54cd\u5e94\u62a5\u6587\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2022\/02\/image-20220220202534018.png\" alt=\"image-20220220202534018\" \/><\/p>\n<p>Host A\u5728\u5411Host B\u53d1\u9001\u62a5\u6587\u4e4b\u524d\u5b83\u5fc5\u987b\u8981\u89e3\u6790\u51faHost B\u7684\u94fe\u8def\u5c42\u5730\u5740\uff0c\u6240\u4ee5\u9996\u5148Host A \u4f1a\u53d1\u9001\u4e00\u4e2aNS\u62a5\u6587\uff0c\u5176\u4e2d\u6e90\u5730\u5740\u4e3aHost A\u7684IPv6\u5730\u5740\uff0c\u76ee\u7684\u5730\u5740\u4e3aHost B\u7684\u88ab\u8bf7\u6c42\u8282 \u70b9\u7ec4\u64ad\u5730\u5740\uff0c\u9700\u8981\u89e3\u6790\u7684\u76ee\u6807IP\u4e3aHost B\u7684IPv6\u5730\u5740\uff0c\u8fd9\u5c31\u8868\u793aHost A\u60f3\u8981\u77e5\u9053Host B \u7684\u94fe\u8def\u5c42\u5730\u5740\u3002\u540c\u65f6\u9700\u8981\u6307\u51fa\u7684\u662f\uff0c\u5728NS\u62a5\u6587\u7684Options\u5b57\u6bb5\u4e2d\u8fd8\u643a\u5e26\u4e86Host A\u7684\u94fe\u8def \u5c42\u5730\u5740\u3002<\/p>\n<p>\u5f53Host B\u63a5\u6536\u5230\u4e86NS\u62a5\u6587\u4e4b\u540e\uff0c\u5c31\u4f1a\u56de\u5e94NA\u62a5\u6587\uff0c\u5176\u4e2d\u6e90\u5730\u5740\u4e3aHost B\u7684IPv6\u5730\u5740\uff0c \u76ee\u7684\u5730\u5740\u4e3aHost A\u7684IPv6\u5730\u5740(\u4f7f\u7528NS\u62a5\u6587\u4e2d\u7684Host A\u7684\u94fe\u8def\u5c42\u5730\u5740\u8fdb\u884c\u5355\u64ad)\uff0cHost B\u7684\u94fe\u8def\u5c42\u5730\u5740\u88ab\u653e\u5728Options\u5b57\u6bb5\u4e2d\u3002\u8fd9\u6837\u5c31\u5b8c\u6210\u4e86\u4e00\u4e2a\u5730\u5740\u89e3\u6790\u7684\u8fc7\u7a0b\u3002<\/p>\n<h3>\u8ddf\u8e2a\u90bb\u5c45\u72b6\u6001<\/h3>\n<p>\u901a\u8fc7\u90bb\u5c45\u6216\u5230\u8fbe\u90bb\u5c45\u7684\u901a\u4fe1\uff0c\u4f1a\u56e0\u5404\u79cd\u539f\u56e0\u800c\u4e2d\u65ad\uff0c\u5305\u62ec\u786c\u4ef6\u6545\u969c\u3001\u63a5\u53e3\u5361\u7684\u70ed\u63d2\u5165 \u7b49\u3002\u5982\u679c\u76ee\u7684\u5730\u5931\u6548\uff0c\u5219\u6062\u590d\u662f\u4e0d\u53ef\u80fd\u7684\uff0c\u901a\u4fe1\u5931\u8d25;\u5982\u679c\u8def\u5f84\u5931\u6548\uff0c\u5219\u6062\u590d\u662f\u53ef\u80fd \u7684\u3002 \u56e0\u6b64\u8282\u70b9\u9700\u8981\u7ef4\u62a4\u4e00\u5f20\u90bb\u5c45\u8868\uff0c\u6bcf\u4e2a\u90bb\u5c45\u90fd\u6709\u76f8\u5e94\u7684\u72b6\u6001\uff0c\u72b6\u6001\u4e4b\u95f4\u53ef\u4ee5\u8fc1\u79fb\u3002<\/p>\n<p>RFC2461\u4e2d\u5b9a\u4e49\u4e865\u79cd\u90bb\u5c45\u72b6\u6001\uff0c\u5206\u522b\u662f:\u672a\u5b8c\u6210(Incomplete)\u3001\u53ef\u8fbe (Reachable)\u3001\u9648\u65e7(Stale)\u3001\u5ef6\u8fdf(Delay)\u3001\u63a2\u67e5(Probe)<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2022\/02\/image-20220220202903445.png\" alt=\"image-20220220202903445\" \/><\/p>\n<p>\u4e0b\u9762\u4ee5A\u3001B\u4e24\u4e2a\u90bb\u5c45\u8282\u70b9\u4e4b\u95f4\u76f8\u4e92\u901a\u4fe1\u8fc7\u7a0b\u4e2dA\u8282\u70b9\u7684\u90bb\u5c45\u72b6\u6001\u53d8\u5316\u4e3a\u4f8b(\u5047\u8bbeA\u3001B \u4e4b\u524d\u4ece\u672a\u901a\u4fe1)\uff0c\u8bf4\u660e\u90bb\u5c45\u72b6\u6001\u8fc1\u79fb\u7684\u8fc7\u7a0b\u3002<\/p>\n<ol>\n<li>A\u5148\u53d1\u9001NS\u62a5\u6587\uff0c\u5e76\u751f\u6210\u7f13\u5b58\u6761\u76ee\uff0c\u6b64\u65f6\uff0c\u90bb\u5c45\u72b6\u6001\u4e3aIncomplete\u3002<\/li>\n<li>\u82e5B\u56de\u590dNA\u62a5\u6587\uff0c\u5219\u90bb\u5c45\u72b6\u6001\u7531Incomplete\u53d8\u4e3aReachable\uff0c\u5426\u5219\u56fa\u5b9a\u65f6\u95f4\u540e\u90bb\u5c45\u72b6\u6001\u7531Incomplete\u53d8\u4e3aEmpty\uff0c\u5373\u5220\u9664\u8868\u9879\u3002<\/li>\n<li>\u7ecf\u8fc7\u90bb\u5c45\u53ef\u8fbe\u65f6\u95f4\uff0c\u90bb\u5c45\u72b6\u6001\u7531Reachable\u53d8\u4e3aStale\uff0c\u5373\u4e0d\u786e\u5b9a\u90bb\u5c45\u8282\u70b9\u7684\u53ef\u8fbe\u6027\u3002<\/li>\n<li>\u5982\u679c\u5728Reachable\u72b6\u6001\uff0cA\u6536\u5230B\u7684\u975e\u8bf7\u6c42NA\u62a5\u6587\uff0c\u4e14\u62a5\u6587\u4e2d\u643a\u5e26\u7684B\u7684\u94fe\u8def\u5c42\u5730\u5740\u548c\u8868\u9879\u4e2d\u4e0d\u540c\uff0c\u5219\u90bb\u5c45\u72b6\u6001\u9a6c\u4e0a\u53d8\u4e3aStale\u3002<\/li>\n<li>\u5728STALE\u72b6\u6001\u5230\u8fbe\u8001\u5316\u65f6\u95f4\u540e\u8fdb\u5165Delay\u72b6\u6001\u3002<\/li>\n<li>\u5728\u7ecf\u8fc7\u4e00\u6bb5\u56fa\u5b9a\u65f6\u95f4(5\u79d2)\u540e\uff0c\u90bb\u5c45\u72b6\u6001\u7531Delay\u53d8\u4e3aProbe\uff0c\u5176\u95f4\u82e5\u6709NA\u5e94\u7b54\uff0c \u5219\u90bb\u5c45\u72b6\u6001\u7531Delay\u53d8\u4e3aReachable\u3002<\/li>\n<li>\u5728Probe\u72b6\u6001\uff0cA\u6bcf\u9694\u4e00\u5b9a\u65f6\u95f4\u95f4\u9694(1\u79d2)\u53d1\u9001\u5355\u64adNS\uff0c\u53d1\u9001\u56fa\u5b9a\u6b21\u6570(3\u6b21) \u540e\uff0c\u6709\u5e94\u7b54\u5219\u90bb\u5c45\u72b6\u6001\u53d8\u4e3aReachable\uff0c\u5426\u5219\u90bb\u5c45\u72b6\u6001\u53d8\u4e3aEmpty\uff0c\u5373\u5220\u9664\u8868\u9879\u3002<\/li>\n<\/ol>\n<h3>\u91cd\u590d\u5730\u5740\u68c0\u6d4b<\/h3>\n<p>\u91cd\u590d\u5730\u5740\u68c0\u6d4bDAD(Duplicate Address Detect)\u662f\u5728\u63a5\u53e3\u4f7f\u7528\u67d0\u4e2aIPv6\u5355\u64ad\u5730\u5740\u4e4b\u524d\u8fdb \u884c\u7684\uff0c\u4e3b\u8981\u662f\u4e3a\u4e86\u63a2\u6d4b\u662f\u5426\u6709\u5176\u5b83\u7684\u8282\u70b9\u4f7f\u7528\u4e86\u8be5\u5730\u5740\u3002\u5c24\u5176\u662f\u5728\u5730\u5740\u81ea\u52a8\u914d\u7f6e\u7684\u65f6 \u5019\uff0c\u8fdb\u884cDAD\u68c0\u6d4b\u662f\u5f88\u5fc5\u8981\u7684\u3002 \u4e00\u4e2aIPv6\u5355\u64ad\u5730\u5740\u5728\u5206\u914d\u7ed9\u4e00\u4e2a\u63a5\u53e3\u4e4b\u540e\u4e14\u901a\u8fc7\u91cd\u590d \u5730\u5740\u68c0\u6d4b\u4e4b\u524d\u79f0\u4e3a\u8bd5\u9a8c\u5730\u5740(Tentative Address)\u3002\u6b64\u65f6\u8be5\u63a5\u53e3\u4e0d\u80fd\u4f7f\u7528\u8fd9\u4e2a\u8bd5\u9a8c\u5730\u5740 \u8fdb\u884c\u5355\u64ad\u901a\u4fe1\uff0c\u4f46\u662f\u4ecd\u7136\u4f1a\u52a0\u5165\u4e24\u4e2a\u7ec4\u64ad\u7ec4:ALL-NODES\u7ec4\u64ad\u7ec4\u548c\u8bd5\u9a8c\u5730\u5740\u6240\u5bf9\u5e94\u7684 Solicited-Node\u7ec4\u64ad\u7ec4\u3002<\/p>\n<p>IPv6\u91cd\u590d\u5730\u5740\u68c0\u6d4b\u6280\u672f\u548cIPv4\u4e2d\u7684\u514d\u8d39ARP\u7c7b\u4f3c:\u8282\u70b9\u5411\u8bd5\u9a8c\u5730\u5740\u6240\u5bf9\u5e94\u7684Solicited- Node\u7ec4\u64ad\u7ec4\u53d1\u9001NS\u62a5\u6587\u3002NS\u62a5\u6587\u4e2d\u76ee\u6807\u5730\u5740\u5373\u4e3a\u8be5\u8bd5\u9a8c\u5730\u5740\u3002\u5982\u679c\u6536\u5230\u67d0\u4e2a\u5176\u4ed6\u7ad9\u70b9 \u56de\u5e94\u7684NA\u62a5\u6587\uff0c\u5c31\u8bc1\u660e\u8be5\u5730\u5740\u5df2\u88ab\u7f51\u7edc\u4e0a\u4f7f\u7528\uff0c\u8282\u70b9\u5c06\u4e0d\u80fd\u4f7f\u7528\u8be5\u8bd5\u9a8c\u5730\u5740\u901a\u8baf\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2022\/02\/image-20220220203031376.png\" alt=\"image-20220220203031376\" \/><\/p>\n<p>Host A\u7684IPv6\u5730\u5740FC00::1\u4e3a\u65b0\u914d\u7f6e\u5730\u5740\uff0c\u5373FC00::1\u4e3aHost A\u7684\u8bd5\u9a8c\u5730\u5740\u3002Host A\u5411 FC00::1\u7684Solicited-Node\u7ec4\u64ad\u7ec4\u53d1\u9001\u4e00\u4e2a\u4ee5FC00::1\u4e3a\u8bf7\u6c42\u7684\u76ee\u6807\u5730\u5740\u7684NS\u62a5\u6587\u8fdb\u884c\u91cd \u590d\u5730\u5740\u68c0\u6d4b\uff0c\u7531\u4e8eFC00::1\u5e76\u672a\u6b63\u5f0f\u6307\u5b9a\uff0c\u6240\u4ee5NS\u62a5\u6587\u7684\u6e90\u5730\u5740\u4e3a\u672a\u6307\u5b9a\u5730\u5740\u3002\u5f53Host B\u6536\u5230\u8be5NS\u62a5\u6587\u540e\uff0c\u6709\u4e24\u79cd\u5904\u7406\u65b9\u6cd5:<\/p>\n<ul>\n<li>\u5982\u679cHost B\u53d1\u73b0FC00::1\u662f\u81ea\u8eab\u7684\u4e00\u4e2a\u8bd5\u9a8c\u5730\u5740\uff0c\u5219Host B\u653e\u5f03\u4f7f\u7528\u8fd9\u4e2a\u5730\u5740\u4f5c\u4e3a \u63a5\u53e3\u5730\u5740\uff0c\u5e76\u4e14\u4e0d\u4f1a\u53d1\u9001NA\u62a5\u6587\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679cHost B\u53d1\u73b0FC00::1\u662f\u4e00\u4e2a\u5df2\u7ecf\u6b63\u5e38\u4f7f\u7528\u7684\u5730\u5740\uff0cHost B\u4f1a\u5411FF02::1\u53d1\u9001\u4e00\u4e2a NA\u62a5\u6587\uff0c\u8be5\u6d88\u606f\u4e2d\u4f1a\u5305\u542bFC00::1\u3002\u8fd9\u6837\uff0cHost A\u6536\u5230\u8fd9\u4e2a\u6d88\u606f\u540e\u5c31\u4f1a\u53d1\u73b0\u81ea\u8eab\u7684 \u8bd5\u9a8c\u5730\u5740\u662f\u91cd\u590d\u7684\u3002Host A\u4e0a\u8be5\u8bd5\u9a8c\u5730\u5740\u4e0d\u751f\u6548\uff0c\u88ab\u6807\u8bc6\u4e3aduplicated\u72b6\u6001\u3002<\/p>\n<\/li>\n<\/ul>\n<h3>\u8def\u7531\u5668\u53d1\u73b0<\/h3>\n<p>\u8def\u7531\u5668\u53d1\u73b0\u529f\u80fd\u7528\u6765\u53d1\u73b0\u4e0e\u672c\u5730\u94fe\u8def\u76f8\u8fde\u7684\u8bbe\u5907\uff0c\u5e76\u83b7\u53d6\u4e0e\u5730\u5740\u81ea\u52a8\u914d\u7f6e\u76f8\u5173\u7684\u524d\u7f00\u548c\u5176\u4ed6\u914d\u7f6e\u53c2\u6570\u3002<\/p>\n<p>\u5728IPv6\u4e2d\uff0cIPv6\u5730\u5740\u53ef\u4ee5\u652f\u6301\u65e0\u72b6\u6001\u7684\u81ea\u52a8\u914d\u7f6e\uff0c\u5373\u4e3b\u673a\u901a\u8fc7\u67d0\u79cd\u673a\u5236\u83b7\u53d6\u7f51\u7edc\u524d\u7f00\u4fe1 \u606f\uff0c\u7136\u540e\u4e3b\u673a\u81ea\u5df1\u751f\u6210\u5730\u5740\u7684\u63a5\u53e3\u6807\u8bc6\u90e8\u5206\u3002\u8def\u7531\u5668\u53d1\u73b0\u529f\u80fd\u662fIPv6\u5730\u5740\u81ea\u52a8\u914d\u7f6e\u529f \u80fd\u7684\u57fa\u7840\uff0c\u4e3b\u8981\u901a\u8fc7\u4ee5\u4e0b\u4e24\u79cd\u62a5\u6587\u5b9e\u73b0:<\/p>\n<ul>\n<li>\u8def\u7531\u5668\u901a\u544aRA(Router Advertisement)\u62a5\u6587:\u6bcf\u53f0\u8bbe\u5907\u4e3a\u4e86\u8ba9\u4e8c\u5c42\u7f51\u7edc\u4e0a\u7684\u4e3b\u673a \u548c\u8bbe\u5907\u77e5\u9053\u81ea\u5df1\u7684\u5b58\u5728\uff0c\u5b9a\u65f6\u90fd\u4f1a\u7ec4\u64ad\u53d1\u9001RA\u62a5\u6587\uff0cRA\u62a5\u6587\u4e2d\u4f1a\u5e26\u6709\u7f51\u7edc\u524d\u7f00 \u4fe1\u606f\uff0c\u53ca\u5176\u4ed6\u4e00\u4e9b\u6807\u5fd7\u4f4d\u4fe1\u606f\u3002RA\u62a5\u6587\u7684Type\u5b57\u6bb5\u503c\u4e3a134\u3002<\/p>\n<\/li>\n<li>\n<p>\u8def\u7531\u5668\u8bf7\u6c42RS(Router Solicitation)\u62a5\u6587:\u5f88\u591a\u60c5\u51b5\u4e0b\u4e3b\u673a\u63a5\u5165\u7f51\u7edc\u540e\u5e0c\u671b\u5c3d\u5feb \u83b7\u53d6\u7f51\u7edc\u524d\u7f00\u8fdb\u884c\u901a\u4fe1\uff0c\u6b64\u65f6\u4e3b\u673a\u53ef\u4ee5\u7acb\u523b\u53d1\u9001RS\u62a5\u6587\uff0c\u7f51\u7edc\u4e0a\u7684\u8bbe\u5907\u5c06\u56de\u5e94RA \u62a5\u6587\u3002RS\u62a5\u6587\u7684Tpye\u5b57\u6bb5\u503c\u4e3a133\u3002<\/p>\n<\/li>\n<\/ul>\n<h3>\u91cd\u5b9a\u5411<\/h3>\n<p>\u5f53\u7f51\u5173\u8bbe\u5907\u53d1\u73b0\u62a5\u6587\u4ece\u5176\u5b83\u7f51\u5173\u8bbe\u5907\u8f6c\u53d1\u66f4\u597d\uff0c\u5b83\u5c31\u4f1a\u53d1\u9001\u91cd\u5b9a\u5411\u62a5\u6587\u544a\u77e5\u62a5\u6587\u7684\u53d1 \u9001\u8005\uff0c\u8ba9\u62a5\u6587\u53d1\u9001\u8005\u9009\u62e9\u53e6\u4e00\u4e2a\u7f51\u5173\u8bbe\u5907\u3002\u91cd\u5b9a\u5411\u62a5\u6587\u4e5f\u627f\u8f7d\u5728ICMPv6\u62a5\u6587\u4e2d\uff0c\u5176 Type\u5b57\u6bb5\u503c\u4e3a137\uff0c\u62a5\u6587\u4e2d\u4f1a\u643a\u5e26\u66f4\u597d\u7684\u8def\u5f84\u4e0b\u4e00\u8df3\u5730\u5740\u548c\u9700\u8981\u91cd\u5b9a\u5411\u8f6c\u53d1\u7684\u62a5\u6587\u7684\u76ee \u7684\u5730\u5740\u7b49\u4fe1\u606f\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2022\/02\/image-20220220203223504.png\" alt=\"image-20220220203223504\" \/><\/p>\n<p>Host A\u9700\u8981\u548cHost B\u901a\u4fe1\uff0cHost A\u7684\u9ed8\u8ba4\u7f51\u5173\u8bbe\u5907\u662fSwitch A\uff0c\u5f53Host A\u53d1\u9001\u62a5\u6587\u7ed9 Host B\u65f6\u62a5\u6587\u4f1a\u88ab\u9001\u5230Switch A\u3002Switch A\u63a5\u6536\u5230Host A\u53d1\u9001\u7684\u62a5\u6587\u4ee5\u540e\u4f1a\u53d1\u73b0\u5b9e\u9645\u4e0a Host A\u76f4\u63a5\u53d1\u9001\u7ed9Switch B\u66f4\u597d\uff0c\u5b83\u5c06\u53d1\u9001\u4e00\u4e2a\u91cd\u5b9a\u5411\u62a5\u6587\u7ed9\u4e3b\u673aA\uff0c\u5176\u4e2d\u62a5\u6587\u4e2d\u66f4\u597d \u7684\u8def\u5f84\u4e0b\u4e00\u8df3\u5730\u5740\u4e3aSwitch B\uff0cDestination Address\u4e3aHost B\u3002Host A\u63a5\u6536\u5230\u4e86\u91cd\u5b9a\u5411\u62a5 \u6587\u4e4b\u540e\uff0c\u4f1a\u5728\u9ed8\u8ba4\u8def\u7531\u8868\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u4e3b\u673a\u8def\u7531\uff0c\u4ee5\u540e\u53d1\u5f80Host B\u7684\u62a5\u6587\u5c31\u76f4\u63a5\u53d1\u9001\u7ed9 Switch B\u3002<\/p>\n<p>\u5f53\u8bbe\u5907\u6536\u5230\u4e00\u4e2a\u62a5\u6587\u540e\uff0c\u53ea\u6709\u5728\u5982\u4e0b\u60c5\u51b5\u4e0b\uff0c\u8bbe\u5907\u4f1a\u5411\u62a5\u6587\u53d1\u9001\u8005\u53d1\u9001\u91cd\u5b9a\u5411\u62a5\u6587:<\/p>\n<ul>\n<li>\u62a5\u6587\u7684\u76ee\u7684\u5730\u5740\u4e0d\u662f\u4e00\u4e2a\u7ec4\u64ad\u5730\u5740\u3002<\/li>\n<li>\u62a5\u6587\u5e76\u975e\u901a\u8fc7\u8def\u7531\u8f6c\u53d1\u7ed9\u8bbe\u5907\u3002<\/li>\n<li>\u7ecf\u8fc7\u8def\u7531\u8ba1\u7b97\u540e\uff0c\u8def\u7531\u7684\u4e0b\u4e00\u8df3\u51fa\u63a5\u53e3\u662f\u63a5\u6536\u62a5\u6587\u7684\u63a5\u53e3\u3002<\/li>\n<li>\u8bbe\u5907\u53d1\u73b0\u62a5\u6587\u7684\u6700\u4f73\u4e0b\u4e00\u8df3IP\u5730\u5740\u548c\u62a5\u6587\u7684\u6e90IP\u5730\u5740\u5904\u4e8e\u540c\u4e00\u7f51\u6bb5\u3002<\/li>\n<li>\u8bbe\u5907\u68c0\u67e5\u62a5\u6587\u7684\u6e90\u5730\u5740\uff0c\u53d1\u73b0\u81ea\u8eab\u7684\u90bb\u5c45\u8868\u9879\u4e2d\u6709\u7528\u8be5\u5730\u5740\u4f5c\u4e3a\u5168\u7403\u5355\u64ad\u5730\u5740\u6216\u94fe\u8def\u672c\u5730\u5730\u5740\u7684\u90bb\u5c45\u5b58\u5728\u3002<\/li>\n<\/ul>\n<h2>Path MTU<\/h2>\n<p>\u5728IPv4\u4e2d\uff0c\u62a5\u6587\u5982\u679c\u8fc7\u5927\uff0c\u5fc5\u987b\u8981\u5206\u7247\u8fdb\u884c\u53d1\u9001\uff0c\u6240\u4ee5\u5728\u6bcf\u4e2a\u8282\u70b9\u53d1\u9001\u62a5\u6587\u4e4b\u524d\uff0c\u8bbe\u5907\u90fd\u4f1a\u6839\u636e\u53d1\u9001\u63a5\u53e3\u7684\u6700\u5927\u4f20\u8f93\u5355\u5143MTU(Maximum Transmission Unit)\u6765\u5bf9\u62a5\u6587\u8fdb \u884c\u5206\u7247\u3002\u4f46\u662f\u5728IPv6\u4e2d\uff0c\u4e3a\u4e86\u51cf\u5c11\u4e2d\u95f4\u8f6c\u53d1\u8bbe\u5907\u7684\u5904\u7406\u538b\u529b\uff0c\u4e2d\u95f4\u8f6c\u53d1\u8bbe\u5907\u4e0d\u5bf9IPv6\u62a5\u6587\u8fdb\u884c\u5206\u7247\uff0c\u62a5\u6587\u7684\u5206\u7247\u5c06\u5728\u6e90\u8282\u70b9\u8fdb\u884c\u3002\u5f53\u4e2d\u95f4\u8f6c\u53d1\u8bbe\u5907\u7684\u63a5\u53e3\u6536\u5230\u4e00\u4e2a\u62a5\u6587\u540e\uff0c \u5982\u679c\u53d1\u73b0\u62a5\u6587\u957f\u5ea6\u6bd4\u8f6c\u53d1\u63a5\u53e3\u7684MTU\u503c\u5927\uff0c\u5219\u4f1a\u5c06\u5176\u4e22\u5f03;\u540c\u65f6\u5c06\u8f6c\u53d1\u63a5\u53e3\u7684MTU\u503c \u901a\u8fc7ICMPv6\u62a5\u6587\u7684\u201cPacket Too Big\u201d\u6d88\u606f\u53d1\u7ed9\u6e90\u7aef\u4e3b\u673a\uff0c\u6e90\u7aef\u4e3b\u673a\u4ee5\u8be5\u503c\u91cd\u65b0\u53d1\u9001 IPv6\u62a5\u6587\uff0c\u8fd9\u6837\u5e26\u6765\u4e86\u989d\u5916\u6d41\u91cf\u5f00\u9500\u3002PMTU\u53d1\u73b0\u534f\u8bae\u53ef\u4ee5\u52a8\u6001\u53d1\u73b0\u6574\u6761\u4f20\u8f93\u8def\u5f84\u4e0a\u5404 \u94fe\u8def\u7684MTU\u503c\uff0c\u51cf\u5c11\u7531\u4e8e\u91cd\u4f20\u5e26\u6765\u7684\u989d\u5916\u6d41\u91cf\u5f00\u9500\u3002<\/p>\n<p>PMTU\u534f\u8bae\u662f\u901a\u8fc7ICMPv6\u7684Packet Too Big\u62a5\u6587\u6765\u5b8c\u6210\u7684\u3002\u9996\u5148\u6e90\u8282\u70b9\u5047\u8bbePMTU\u5c31\u662f \u5176\u51fa\u63a5\u53e3\u7684MTU\uff0c\u53d1\u51fa\u4e00\u4e2a\u8bd5\u63a2\u6027\u7684\u62a5\u6587\uff0c\u5f53\u8f6c\u53d1\u8def\u5f84\u4e0a\u5b58\u5728\u4e00\u4e2a\u5c0f\u4e8e\u5f53\u524d\u5047\u8bbe\u7684 PMTU\u65f6\uff0c\u8f6c\u53d1\u8bbe\u5907\u5c31\u4f1a\u5411\u6e90\u8282\u70b9\u53d1\u9001Packet Too Big\u62a5\u6587\uff0c\u5e76\u4e14\u643a\u5e26\u81ea\u5df1\u7684MTU\u503c\uff0c \u6b64\u540e\u6e90\u8282\u70b9\u5c06PMTU\u7684\u5047\u8bbe\u503c\u66f4\u6539\u4e3a\u65b0\u6536\u5230\u7684MTU\u503c\u7ee7\u7eed\u53d1\u9001\u62a5\u6587\u3002\u5982\u6b64\u53cd\u590d\uff0c\u76f4\u5230 \u62a5\u6587\u5230\u8fbe\u76ee\u7684\u5730\u4e4b\u540e\uff0c\u6e90\u8282\u70b9\u5c31\u80fd\u77e5\u9053\u5230\u8fbe\u76ee\u7684\u5730\u7684PMTU\u4e86\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.myway5.com\/wp-content\/uploads\/2022\/02\/image-20220220203415347.png\" alt=\"image-20220220203415347\" \/><\/p>\n<p>\u6574\u6761\u4f20\u8f93\u8def\u5f84\u9700\u8981\u901a\u8fc74\u6761\u94fe\u8def\uff0c\u6bcf\u6761\u94fe\u8def\u7684MTU\u5206\u522b\u662f1500\u30011500\u30011400\u30011300\uff0c\u5f53 \u6e90\u8282\u70b9\u53d1\u9001\u4e00\u4e2a\u5206\u7247\u62a5\u6587\u7684\u65f6\u5019\uff0c\u9996\u5148\u6309\u7167PMTU\u4e3a1500\u8fdb\u884c\u5206\u7247\u5e76\u53d1\u9001\u5206\u7247\u62a5\u6587\uff0c\u5f53 \u5230\u8fbeMTU\u4e3a1400\u7684\u51fa\u63a5\u53e3\u65f6\uff0c\u8bbe\u5907\u8fd4\u56dePacket Too Big\u9519\u8bef\uff0c\u540c\u65f6\u643a\u5e26MTU\u503c\u4e3a1400\u7684 \u4fe1\u606f\u3002\u6e90\u8282\u70b9\u63a5\u6536\u5230\u4e4b\u540e\u4f1a\u5c06\u62a5\u6587\u91cd\u65b0\u6309\u7167PMTU\u4e3a1400\u8fdb\u884c\u5206\u7247\u5e76\u518d\u6b21\u53d1\u9001\u4e00\u4e2a\u5206\u7247 \u62a5\u6587\uff0c\u5f53\u5206\u7247\u62a5\u6587\u5230\u8fbeMTU\u503c\u4e3a1300\u7684\u51fa\u63a5\u53e3\u65f6\uff0c\u540c\u6837\u8fd4\u56dePacket Too Big\u9519\u8bef\uff0c\u643a\u5e26 MTU\u503c\u4e3a1300\u7684\u4fe1\u606f\u3002\u4e4b\u540e\u6e90\u8282\u70b9\u91cd\u65b0\u6309\u7167PMTU\u4e3a1300\u8fdb\u884c\u5206\u7247\u5e76\u53d1\u9001\u5206\u7247\u62a5\u6587\uff0c \u6700\u7ec8\u5230\u8fbe\u76ee\u7684\u5730\uff0c\u8fd9\u6837\u5c31\u627e\u5230\u4e86\u8be5\u8def\u5f84\u7684PMTU\u3002<\/p>\n<h2>Linux IPv6<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u6761\u76ee<\/th>\n<th>ipv4<\/th>\n<th>ipv6<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>sysctl \u914d\u7f6e\u9879<\/td>\n<td>net.ipv4.conf<\/td>\n<td>net.ipv6.conf<\/td>\n<\/tr>\n<tr>\n<td>ip \u5730\u5740<\/td>\n<td>\u901a\u8fc7 <code>ip  a<\/code>\u67e5\u770b\u65f6\u53ef\u4ee5\u770b\u5230 inet \u540e\u9762\u7684\u5c31\u662f ipv4 \u5730\u5740\u3002<\/td>\n<td>\u901a\u8fc7 <code>ip  a<\/code>\u67e5\u770b\u65f6\u53ef\u4ee5\u770b\u5230 inet6 \u540e\u9762\u7684\u5c31\u662f ipv6 \u5730\u5740\u3002\u4e00\u822c\u4f1a\u6709\u591a\u4e2a\uff0cscope global \u7684\u662f\u5168\u5c40\u552f\u4e00\u5355\u64ad\u5730\u5740\u6216\u552f\u4e00\u672c\u5730\u5730\u5740(fc\u6216fd\u5f00\u5934)\uff0cscope link \u662f\u94fe\u8def\u672c\u5730\u5730\u5740(fe80 \u5f00\u5934)\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u6293\u5305<\/td>\n<td>tcpdump icmp\/ tcpdump ip<\/td>\n<td>tcpdump icmp6 \/ tcpdump ip6<\/td>\n<\/tr>\n<tr>\n<td>ping<\/td>\n<td>ping<\/td>\n<td>ping6 \u6216 ping -6<\/td>\n<\/tr>\n<tr>\n<td>traceroute6<\/td>\n<td>traceroute<\/td>\n<td>traceroute6<\/td>\n<\/tr>\n<tr>\n<td>\u90bb\u5c45\u5730\u5740\u89e3\u6790<\/td>\n<td>arping<\/td>\n<td>ndisc<\/td>\n<\/tr>\n<tr>\n<td>\u8def\u7531\u8868<\/td>\n<td>ip r<\/td>\n<td>ip -6 r<\/td>\n<\/tr>\n<tr>\n<td>\u90bb\u5c45\u5730\u5740\u8868<\/td>\n<td>ip neigh \u6216 arp -n<\/td>\n<td>ip -6 neigh<\/td>\n<\/tr>\n<tr>\n<td>DNS \u89e3\u6790<\/td>\n<td>dig<\/td>\n<td>dig -6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Kubernetes \u7684 IPv4\/IPv6 \u53cc\u6808<\/h2>\n<p>IPv4\/IPv6 \u53cc\u6808\u662f\u7531 IPv4 \u5411 IPv6 \u8fc7\u6e21\u9636\u6bb5\u7684\u4e00\u79cd\u89e3\u51b3\u65b9\u6848\uff0c\u53cc\u6808\u5373\u4e00\u4e2a\u7f51\u7edc\u63a5\u53e3\u540c\u65f6\u62e5\u6709 IPv4 \u548c IPv6 \u7684\u5730\u5740\uff0c\u8fd9\u6837\u5728\u548c\u8fdc\u7aef\u901a\u4fe1\u65f6\uff0c\u5982\u679c\u8fdc\u7aef\u652f\u6301 IPv6\uff0c\u5c31\u4f7f\u7528 IPv6 \u8fdb\u884c\u901a\u4fe1\uff0c\u5426\u5219\u4e5f\u53ef\u4ee5\u4f7f\u7528 IPv4 \u8fdb\u884c\u901a\u4fe1\u3002Kubernetes \u5728 1.20 \u540e\u5f00\u59cb\u652f\u6301\u53cc\u6808\u3002\u5f53\u7136\uff0c\u9664\u4e86\u5bf9 Kubernetes \u7248\u672c\u6709\u8981\u6c42\u5916\uff0cCNI \u63d2\u4ef6\u4e5f\u5fc5\u987b\u652f\u6301\u53cc\u6808\u624d\u884c\u3002<\/p>\n<p>\u8981\u5728 Kubernetes \u4e2d\u5f00\u542f\u53cc\u6808\uff0c\u9700\u8981\u505a\u4ee5\u4e0b\u914d\u7f6e\uff1a<\/p>\n<ul>\n<li>kube-apiserver:\n<ul>\n<li><code>--service-cluster-ip-range=&lt;IPv4 CIDR&gt;,&lt;IPv6 CIDR&gt;<\/code><\/li>\n<\/ul>\n<\/li>\n<li>kube-controller-manager:\n<ul>\n<li><code>--cluster-cidr=&lt;IPv4 CIDR&gt;,&lt;IPv6 CIDR&gt;<\/code><\/li>\n<li><code>--service-cluster-ip-range=&lt;IPv4 CIDR&gt;,&lt;IPv6 CIDR&gt;<\/code><\/li>\n<li><code>--node-cidr-mask-size-ipv4|--node-cidr-mask-size-ipv6<\/code> \u5bf9\u4e8e IPv4 \u9ed8\u8ba4\u4e3a \/24\uff0c\u5bf9\u4e8e IPv6 \u9ed8\u8ba4\u4e3a \/64<\/li>\n<\/ul>\n<\/li>\n<li>kube-proxy:\n<ul>\n<li><code>--cluster-cidr=&lt;IPv4 CIDR&gt;,&lt;IPv6 CIDR&gt;<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>IPv6 \u5730\u5740\u901f\u67e5<\/h2>\n<p>\u5e73\u5e38\u63a5\u89e6 IPv4 \u5730\u5740\u8f83\u591a\uff0c\u56e0\u6b64\u4e00\u773c\u5c31\u5927\u6982\u77e5\u9053\u67d0\u4e2a\u5730\u5740\u4ee3\u8868\u4ec0\u4e48\u542b\u4e49\uff0c\u4f46\u662f IPv6 \u4e2d\u5f80\u5f80\u6bd4\u8f83\u96be\u5206\u8fa8\uff0c\u8fd9\u91cc\u63d0\u4f9b\u4e00\u4e2a\u8868\u683c\u4f9b\u5bf9\u7167\u53c2\u8003\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5730\u5740\u7c7b\u578b<\/th>\n<th>IPv4<\/th>\n<th>IPv6<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u73af\u56de\u5730\u5740<\/td>\n<td>127.0.0.1<\/td>\n<td>::1\/128<\/td>\n<\/tr>\n<tr>\n<td>\u79c1\u7f51\u5730\u5740<\/td>\n<td>10.0.0.0 \u2013 10.255.255.255\uff0c 172.16.0.0 \u2013 172.31.255.255\uff0c192.168.0.0 \u2013 192.168.255.255<\/td>\n<td>\u524d\u7f00FC00::\/7\uff081111 110\uff09\uff0c\u8303\u56f4\uff1aFC~FD\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u94fe\u8def\u672c\u5730\u5730\u5740<\/td>\n<td>169.254.0.0\/16<\/td>\n<td>fe80::\/10<\/td>\n<\/tr>\n<tr>\n<td>\u7ec4\u64ad\u5730\u5740<\/td>\n<td>\u65e0<\/td>\n<td>\u88ab\u8bf7\u6c42\u8282\u70b9\u7ec4\u64ad\u5730\u5740\u7531\u524d\u7f00FF02::1:FF00:0\/104\u548c\u5355\u64ad\u5730\u5740\u7684\u6700\u540e24\u4f4d\u7ec4\u6210\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u5e7f\u64ad\u5730\u5740<\/td>\n<td>\u5e7f\u64ad\u5730\u5740\u4f7f\u7528\u8be5\u7f51\u7edc\u8303\u56f4\u5185\u7684\u6700\u5927\u5730\u5740\u3002 \u5373\u4e3b\u673a\u90e8\u5206\u7684\u5404\u6bd4\u7279\u4f4d\u5168\u90e8\u4e3a 1 \u7684\u5730\u5740\u3002\u5728\u7f51\u7edc 10.1.1.0\/24 \u4e2d\uff0c\u5176\u5e7f\u64ad\u5730\u5740\u662f 10.1.1.255\u3002<\/td>\n<td>\u65e0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u53c2\u8003<\/h2>\n<ul>\n<li>\u534e\u4e3a \u300aIPv6 \u6280\u672f\u767d\u76ae\u4e66\u300b\u3002\u672c\u6587\u5927\u591a\u6570\u5185\u5bb9\u90fd\u662f\u53c2\u8003\u6216\u6458\u6284\u81ea\u8be5\u767d\u76ae\u4e66\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>1. \u6982\u8ff0 IPv6 \u5168\u79f0\u662f Internet Protocol Version 6\uff0c\u4e0d\u8fc7\u867d\u7136\u662f\u53eb Versi &hellip; <a href=\"https:\/\/www.myway5.com\/index.php\/2022\/02\/20\/ipv6\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">IPv6 \u5b66\u4e60\u7b14\u8bb0<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[60],"tags":[],"class_list":["post-1091","post","type-post","status-publish","format-standard","hentry","category-protocal"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>IPv6 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