{"id":1976,"date":"2021-01-06T15:32:13","date_gmt":"2021-01-06T07:32:13","guid":{"rendered":"http:\/\/www.menshours.com\/?p=1976"},"modified":"2021-01-06T15:32:13","modified_gmt":"2021-01-06T07:32:13","slug":"ipsec-vpn%e4%b9%8bike%e5%8d%8f%e8%ae%ae%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.menshours.com\/index.php\/2021\/01\/06\/ipsec-vpn%e4%b9%8bike%e5%8d%8f%e8%ae%ae%e8%af%a6%e8%a7%a3\/","title":{"rendered":"IPSec VPN\u4e4bIKE\u534f\u8bae\u8be6\u89e3"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\" id=\"IKE\u7b80\u4ecb\">IKE\u7b80\u4ecb<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u5b89\u5168\u8054\u76dfSA\uff1a\">\u5b89\u5168\u8054\u76dfSA\uff1a<\/h2>\n\n\n\n<p><strong>\u5b9a\u4e49\uff1a<\/strong>&nbsp;\u5b89\u5168\u8054\u76df\u662f\u8981\u5efa\u7acbIPSec \u96a7\u9053\u7684\u901a\u4fe1\u53cc\u65b9\u5bf9\u96a7\u9053\u53c2\u6570\u7684\u7ea6\u5b9a\uff0c\u5305\u62ec\u96a7\u9053\u4e24\u7aef\u7684IP\u5730\u5740\u3001\u96a7\u9053\u91c7\u7528\u7684\u9a8c\u8bc1\u65b9\u5f0f\u3001\u9a8c\u8bc1\u7b97\u6cd5\u3001\u9a8c\u8bc1\u5bc6\u94a5\u3001\u52a0\u5bc6\u7b97\u6cd5\u3001\u5171\u4eab\u5bc6\u94a5\u4ee5\u53ca\u751f\u547d\u5468\u671f\u7b49\u4e00\u7cfb\u5217\u53c2\u6570\u3002<\/p>\n\n\n\n<p>SA\u7531\u4e09\u5143\u7ec4\u6765<strong>\u552f\u4e00\u6807\u8bc6<\/strong>\uff0c\u8fd9\u4e2a\u4e09\u5143\u7ec4\u5305\u62ec\u5b89\u5168\u53c2\u6570\u7d22\u5f15SPI\uff08Security Parameter Index\uff09\u3001\u76ee\u7684IP\u5730\u5740\u548c\u4f7f\u7528\u7684\u5b89\u5168\u534f\u8bae\u53f7\uff08AH\u6216ESP\uff09\u3002\u5176\u4e2d\uff0cSPI\u662f\u4e3a\u552f\u4e00\u6807\u8bc6SA\u800c\u751f\u6210\u7684\u4e00\u4e2a32\u4f4d\u6bd4\u7279\u7684\u6570\u503c\uff0c\u5b83\u5728AH\u548cESP\u5934\u4e2d\u4f20\u8f93\u3002\u5728\u624b\u5de5\u914d\u7f6eSA\u65f6\uff0c\u9700\u8981\u624b\u5de5\u6307\u5b9aSPI\u7684\u53d6\u503c\u3002\u4f7f\u7528IKE\u534f\u5546\u4ea7\u751fSA\u65f6\uff0cSPI\u5c06\u968f\u673a\u751f\u6210\u3002<\/p>\n\n\n\n<p>SA\u662f\u5355\u5411\u7684\u903b\u8f91\u8fde\u63a5\uff0c\u56e0\u6b64\u4e24\u4e2aIPSec\u5bf9\u7b49\u4f53\u4e4b\u95f4\u7684\u53cc\u5411\u901a\u4fe1\uff0c\u6700\u5c11\u9700\u8981\u5efa\u7acb\u4e24\u4e2aSA\u6765\u5206\u522b\u5bf9\u4e24\u4e2a\u65b9\u5411\u7684\u6570\u636e\u6d41\u8fdb\u884c\u5b89\u5168\u4fdd\u62a4\u3002<\/p>\n\n\n\n<p>SA\u662fIPSec\u7684\u4e00\u4e2a\u57fa\u672c\u7ec4\u6210\u90e8\u5206\uff0cSA\u662fSADB\u7684\u4e00\u4e2a\u6761\u76ee\uff0c\u5b83\u5305\u542b\u53cc\u65b9\u5173\u4e8eIKE\u548cIPSec\u5df2\u7ecf\u534f\u5546\u5b8c\u6bd5\u7684\u5b89\u5168\u4fe1\u606f\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>IKE or ISAKMP SA\uff1a\u53cc\u5411\u7684\uff0c\u51b3\u5b9a\u4e86IKE\u534f\u8bae\u5904\u7406\u76f8\u5173\u7ec6\u8282<\/li><li>IPSec SA\uff1a\u5355\u5411\u7684\uff0c\u4e0e\u5c01\u88c5\u534f\u8bae\u76f8\u5173\uff0c\u51b3\u5b9a\u4e86\u5177\u4f53\u52a0\u5bc6\u6d41\u91cf\u7684\u5904\u7406\u65b9\u5f0f\u3002<\/li><\/ul>\n\n\n\n<p>\u4e24\u79cd\u7c7b\u578b\u7684SA\u90fd\u662f\u7531IKE\u534f\u8bae\u534f\u5546\u4ea7\u751f\u7684\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u5efa\u7acbIPSec-SA\u7684\u65b9\u5f0f\uff1a\">\u5efa\u7acbIPSec SA\u7684\u65b9\u5f0f\uff1a<\/h2>\n\n\n\n<p>\u6709\u4e24\u79cd\u65b9\u5f0f\u5efa\u7acbIPSec\u5b89\u5168\u8054\u76df\uff1a\u624b\u5de5\u65b9\u5f0f\u548cIKE\u81ea\u52a8\u534f\u5546\u65b9\u5f0f\u3002\u4e8c\u8005\u7684\u4e3b\u8981\u533a\u522b\u4e3a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5bc6\u94a5\u751f\u6210\u65b9\u5f0f\u4e0d\u540c\u624b\u5de5\u65b9\u5f0f\u4e0b\uff0c\u5efa\u7acbSA\u6240\u9700\u7684\u5168\u90e8\u53c2\u6570\uff0c\u5305\u62ec\u52a0\u5bc6\u3001\u9a8c\u8bc1\u5bc6\u94a5\uff0c\u90fd\u9700\u8981\u7528\u6237\u624b\u5de5\u914d\u7f6e\uff0c\u4e5f\u53ea\u80fd\u624b\u5de5\u5237\u65b0\uff0c\u5728\u4e2d\u5927\u578b\u7f51\u7edc\u4e2d\uff0c\u8fd9\u79cd\u65b9\u5f0f\u7684\u5bc6\u94a5\u7ba1\u7406\u6210\u672c\u5f88\u9ad8\uff1bIKE\u65b9\u5f0f\u4e0b\uff0c\u5efa\u7acbSA\u9700\u8981\u7684\u52a0\u5bc6\u3001\u9a8c\u8bc1\u5bc6\u94a5\u662f\u901a\u8fc7DH\u7b97\u6cd5\u751f\u6210\u7684\uff0c\u53ef\u4ee5\u52a8\u6001\u5237\u65b0\uff0c\u56e0\u800c\u5bc6\u94a5\u7ba1\u7406\u6210\u672c\u4f4e\uff0c\u4e14\u5b89\u5168\u6027\u8f83\u9ad8\u3002<\/li><li>\u751f\u5b58\u5468\u671f\u4e0d\u540c\u624b\u5de5\u65b9\u5f0f\u5efa\u7acb\u7684SA\uff0c\u4e00\u7ecf\u5efa\u7acb\u6c38\u4e45\u5b58\u5728\uff1bIKE\u65b9\u5f0f\u5efa\u7acb\u7684SA\uff0c\u5176\u751f\u5b58\u5468\u671f\u7531\u53cc\u65b9\u914d\u7f6e\u7684\u751f\u5b58\u5468\u671f\u53c2\u6570\u63a7\u5236\u3002<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"IKE\u4ecb\u7ecd\uff1a\">IKE\u4ecb\u7ecd\uff1a<\/h2>\n\n\n\n<p>IKE\u662f\u4e00\u4e2a\u590d\u5408\u534f\u8bae\u3002<\/p>\n\n\n\n<p>\u56e0\u7279\u7f51\u5bc6\u94a5\u4ea4\u6362IKE\uff08Internet Key Exchange\uff09\u534f\u8bae\u5efa\u7acb\u5728Internet\u5b89\u5168\u8054\u76df\u548c\u5bc6\u94a5\u7ba1\u7406\u534f\u8baeISAKMP\u5b9a\u4e49\u7684\u6846\u67b6\u4e0a\uff0c\u662f\u57fa\u4e8eUDP\uff08User Datagram Protocol\uff09500 \u7aef\u53e3\u53f7\uff0c\u7684\u5e94\u7528\u5c42\u534f\u8bae\u3002<\/p>\n\n\n\n<p>IKE\u534f\u5546\u4e24\u79cdSA\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>IKE(ISAKMP) SA (\u9636\u6bb5\u4e00\uff09<\/li><li>IPSEC SA\uff08\u9636\u6bb5\u4e8c\uff09<\/li><\/ul>\n\n\n\n<p>IKE\u8d1f\u8d23\u5efa\u7acb\u548c\u7ef4\u62a4IKE SAs \u548c IPSec SAs\u3002\u529f\u80fd\u4e3b\u8981\u4f53\u73b0\u5728\u5982\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5bf9\u53cc\u65b9\u8fdb\u884c\u8ba4\u8bc1<\/li><li>\u4ea4\u6362\u516c\u5171\u5bc6\u94a5\uff0c\u4ea7\u751f\u5bc6\u94a5\u8d44\u6e90\uff0c\u7ba1\u7406\u5bc6\u94a5<\/li><li>\u534f\u5546\u534f\u8bae\u53c2\u6570\uff08\u5c01\u88c5\u3001\u52a0\u5bc6\u3001\u9a8c\u8bc1\u2026..\uff09<\/li><\/ul>\n\n\n\n<p>IKE\u7684\u4e09\u4e2a\u7ec4\u4ef6\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>SKEME\uff1a\u5b9e\u73b0\u516c\u94a5\u52a0\u5bc6\u8ba4\u8bc1\u7684\u673a\u5236<\/li><li>Oakley\uff1a\u57fa\u4e8e\u5230\u8fbe\u4e24\u4e2a\u5bf9\u7b49\u4f53\u95f4\u7684\u52a0\u5bc6\u5bc6\u94a5\u7684\u673a\u5236<\/li><li>ISAKMP\uff1a\u5728\u4e24\u4e2a\u5b9e\u4f53\u95f4\u8fdb\u884c\u5206\u7ec4\u683c\u5f0f\u53ca\u72b6\u6001\u8f6c\u6362\u7684\u6d88\u606f\u4ea4\u6362\u7684\u4f53\u7cfb\u7ed3\u6784\u3002<\/li><\/ul>\n\n\n\n<p><strong>IKE\u6709\u4e24\u4e2a\u7248\u672c:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>IKEV1<\/li><li>IKEV2\u2014\u2014-\u534e\u4e3a\u9ed8\u8ba4<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"IKE\u4e0eIPSec\u7684\u5173\u7cfb\uff1a\">IKE\u4e0eIPSec\u7684\u5173\u7cfb\uff1a<\/h2>\n\n\n\n<p>IKE\u4e3aIPSec\u63d0\u4f9b\u4e86\u81ea\u52a8\u534f\u5546\u5bc6\u94a5\u3001\u5efa\u7acbIPSec\u5b89\u5168\u8054\u76df\u7684\u670d\u52a1\uff0c\u80fd\u591f\u7b80\u5316IPSec\u7684\u4f7f\u7528\u548c\u7ba1\u7406\uff0c\u5927\u5927\u7b80\u5316IPSec\u7684\u914d\u7f6e\u548c\u7ef4\u62a4\u5de5\u4f5c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/ike%E4%B8%8Eipsec%E5%85%B3%E7%B3%BB.png\" alt=\"ike\u4e0eipsec\u5173\u7cfb\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1aIKE\u4e0eIPSec\u7684\u5173\u7cfb\u56fe<\/p>\n\n\n\n<p>IKE\u4e0eIPSec\u7684\u5173\u7cfb\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u5bf9\u7b49\u4f53\u4e4b\u95f4\u5efa\u7acb\u4e00\u4e2aIKE SA\u5b8c\u6210\u8eab\u4efd\u9a8c\u8bc1\u548c\u5bc6\u94a5\u4fe1\u606f\u4ea4\u6362\u540e\uff0c\u5728IKE SA\u7684\u4fdd\u62a4\u4e0b\uff0c\u6839\u636e\u914d\u7f6e\u7684AH\/ESP\u5b89\u5168\u534f\u8bae\u7b49\u53c2\u6570\u534f\u5546\u51fa\u4e00\u5bf9IPSec SA\u3002\u6b64\u540e\uff0c\u5bf9\u7b49\u4f53\u95f4\u7684\u6570\u636e\u5c06\u5728IPSec\u96a7\u9053\u4e2d\u52a0\u5bc6\u4f20\u8f93\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"IKE\u7684\u5b89\u5168\u673a\u5236\uff1a\">IKE\u7684\u5b89\u5168\u673a\u5236\uff1a<\/h2>\n\n\n\n<p>IKE\u5177\u6709\u4e00\u5957\u81ea\u4fdd\u62a4\u673a\u5236\uff0c\u53ef\u4ee5\u5728\u4e0d\u5b89\u5168\u7684\u7f51\u7edc\u4e0a\u5b89\u5168\u5730\u8ba4\u8bc1\u8eab\u4efd\u3001\u5206\u53d1\u5bc6\u94a5\u3001\u5efa\u7acbIPsec SA\uff1a<\/p>\n\n\n\n<p><strong>\u8eab\u4efd\u8ba4\u8bc1<\/strong><\/p>\n\n\n\n<p>\u8eab\u4efd\u8ba4\u8bc1\u786e\u8ba4\u901a\u4fe1\u53cc\u65b9\u7684\u8eab\u4efd\uff08\u5bf9\u7b49\u4f53\u7684IP\u5730\u5740\u6216\u540d\u79f0\uff09\uff0c\u5305\u62ec\u9884\u5171\u4eab\u5bc6\u94a5PSK\uff08pre-shared key\uff09\u8ba4\u8bc1\u3001\u6570\u5b57\u8bc1\u4e66RSA\uff08rsa-signature\uff09\u8ba4\u8bc1\u548c\u6570\u5b57\u4fe1\u5c01\u8ba4\u8bc1\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5728\u9884\u5171\u4eab\u5bc6\u94a5\u8ba4\u8bc1\u4e2d\uff0c\u8ba4\u8bc1\u5b57\u4f5c\u4e3a\u4e00\u4e2a\u8f93\u5165\u6765\u4ea7\u751f\u5bc6\u94a5\uff0c\u901a\u4fe1\u53cc\u65b9\u91c7\u7528\u5171\u4eab\u7684\u5bc6\u94a5\u5bf9\u62a5\u6587\u8fdb\u884cHash\u8ba1\u7b97\uff0c\u5224\u65ad\u53cc\u65b9\u7684\u8ba1\u7b97\u7ed3\u679c\u662f\u5426\u76f8\u540c\u3002\u5982\u679c\u76f8\u540c\uff0c\u5219\u8ba4\u8bc1\u901a\u8fc7\uff1b\u5426\u5219\u8ba4\u8bc1\u5931\u8d25\u3002<\/li><li>\u5728\u6570\u5b57\u8bc1\u4e66\u8ba4\u8bc1\u4e2d\uff0c\u901a\u4fe1\u53cc\u65b9\u4f7f\u7528CA\u8bc1\u4e66\u8fdb\u884c\u6570\u5b57\u8bc1\u4e66\u5408\u6cd5\u6027\u9a8c\u8bc1\uff0c\u53cc\u65b9\u5404\u6709\u81ea\u5df1\u7684\u516c\u94a5\uff08\u7f51\u7edc\u4e0a\u4f20\u8f93\uff09\u548c\u79c1\u94a5\uff08\u81ea\u5df1\u6301\u6709\uff09\u3002\u53d1\u9001\u65b9\u5bf9\u539f\u59cb\u62a5\u6587\u8fdb\u884cHash\u8ba1\u7b97\uff0c\u5e76\u7528\u81ea\u5df1\u7684\u79c1\u94a5\u5bf9\u62a5\u6587\u8ba1\u7b97\u7ed3\u679c\u8fdb\u884c\u52a0\u5bc6\uff0c\u751f\u6210\u6570\u5b57\u7b7e\u540d\u3002\u63a5\u6536\u65b9\u4f7f\u7528\u53d1\u9001\u65b9\u7684\u516c\u94a5\u5bf9\u6570\u5b57\u7b7e\u540d\u8fdb\u884c\u89e3\u5bc6\uff0c\u5e76\u5bf9\u62a5\u6587\u8fdb\u884cHash\u8ba1\u7b97\uff0c\u5224\u65ad\u8ba1\u7b97\u7ed3\u679c\u4e0e\u89e3\u5bc6\u540e\u7684\u7ed3\u679c\u662f\u5426\u76f8\u540c\u3002\u5982\u679c\u76f8\u540c\uff0c\u5219\u8ba4\u8bc1\u901a\u8fc7\uff1b\u5426\u5219\u8ba4\u8bc1\u5931\u8d25\u3002<\/li><li>\u5728\u6570\u5b57\u4fe1\u5c01\u8ba4\u8bc1\u4e2d\uff0c\u53d1\u9001\u65b9\u9996\u5148\u968f\u673a\u4ea7\u751f\u4e00\u4e2a\u5bf9\u79f0\u5bc6\u94a5\uff0c\u4f7f\u7528\u63a5\u6536\u65b9\u7684\u516c\u94a5\u5bf9\u6b64\u5bf9\u79f0\u5bc6\u94a5\u8fdb\u884c\u52a0\u5bc6\uff08\u88ab\u516c\u94a5\u52a0\u5bc6\u7684\u5bf9\u79f0\u5bc6\u94a5\u79f0\u4e3a\u6570\u5b57\u4fe1\u5c01\uff09\uff0c\u53d1\u9001\u65b9\u7528\u5bf9\u79f0\u5bc6\u94a5\u52a0\u5bc6\u62a5\u6587\uff0c\u540c\u65f6\u7528\u81ea\u5df1\u7684\u79c1\u94a5\u751f\u6210\u6570\u5b57\u7b7e\u540d\u3002\u63a5\u6536\u65b9\u7528\u81ea\u5df1\u7684\u79c1\u94a5\u89e3\u5bc6\u6570\u5b57\u4fe1\u5c01\u5f97\u5230\u5bf9\u79f0\u5bc6\u94a5\uff0c\u518d\u7528\u5bf9\u79f0\u5bc6\u94a5\u89e3\u5bc6\u62a5\u6587\uff0c\u540c\u65f6\u6839\u636e\u53d1\u9001\u65b9\u7684\u516c\u94a5\u5bf9\u6570\u5b57\u7b7e\u540d\u8fdb\u884c\u89e3\u5bc6\uff0c\u9a8c\u8bc1\u53d1\u9001\u65b9\u7684\u6570\u5b57\u7b7e\u540d\u662f\u5426\u6b63\u786e\u3002\u5982\u679c\u6b63\u786e\uff0c\u5219\u8ba4\u8bc1\u901a\u8fc7\uff1b\u5426\u5219\u8ba4\u8bc1\u5931\u8d25\u3002<\/li><\/ul>\n\n\n\n<p><strong>DH<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>DH\u662f\u4e00\u79cd\u516c\u5171\u5bc6\u94a5\u4ea4\u6362\u65b9\u6cd5\uff0c\u5b83\u7528\u4e8e\u4ea7\u751f\u5bc6\u94a5\u6750\u6599\uff0c\u5e76\u901a\u8fc7ISAKMP\u6d88\u606f\u5728\u53d1\u9001\u548c\u63a5\u6536\u8bbe\u5907\u4e4b\u95f4\u8fdb\u884c\u5bc6\u94a5\u6750\u6599\u4ea4\u6362\u3002\u7136\u540e\uff0c\u4e24\u7aef\u8bbe\u5907\u5404\u81ea\u8ba1\u7b97\u51fa\u5b8c\u5168\u76f8\u540c\u7684\u5bf9\u79f0\u5bc6\u94a5\u3002\u8be5\u5bf9\u79f0\u5bc6\u94a5\u7528\u4e8e\u8ba1\u7b97\u52a0\u5bc6\u548c\u9a8c\u8bc1\u7684\u5bc6\u94a5\u3002\u5728\u4efb\u4f55\u65f6\u5019\uff0c\u901a\u4fe1\u53cc\u65b9\u90fd\u4e0d\u4ea4\u6362\u771f\u6b63\u7684\u5bc6\u94a5\u3002DH\u5bc6\u94a5\u4ea4\u6362\u662fIKE\u7684\u7cbe\u9ad3\u6240\u5728\u3002MD5\u3001SHA1\u3001DES\u30013DES\u3001AES\u7b49\u7b97\u6cd5\u90fd\u53ef\u4ee5\u91c7\u7528DH\u7b97\u6cd5\u6765\u5171\u4eab\u5bf9\u79f0\u5bc6\u94a5\u3002DH\u4f7f\u7528\u5bc6\u94a5\u7ec4\u5b9a\u4e49\u81ea\u5df1\u4ea7\u751f\u7684\u5bc6\u94a5\u957f\u5ea6\u3002\u5bc6\u94a5\u7ec4\u957f\u5ea6\u8d8a\u957f\uff0c\u4ea7\u751f\u7684\u5bc6\u94a5\u5c31\u8d8a\u5f3a\u58ee\u3002IKE\u7684\u7cbe\u9ad3\u5728\u4e8e\u5b83\u6c38\u8fdc\u4e0d\u5728\u4e0d\u5b89\u5168\u7684\u7f51\u7edc\u4e0a\u4f20\u9001\u5bc6\u94a5\uff0c\u800c\u662f\u901a\u8fc7\u4e00\u4e9b\u6570\u636e\u7684\u4ea4\u6362\uff0c\u901a\u4fe1\u53cc\u65b9\u6700\u7ec8\u8ba1\u7b97\u51fa\u5171\u4eab\u7684\u5bc6\u94a5\uff0c\u5e76\u4e14\u5373\u4f7f\u7b2c\u4e09\u65b9\u622a\u83b7\u4e86\u53cc\u65b9\u7528\u4e8e\u8ba1\u7b97\u5bc6\u94a5\u7684\u6240\u6709\u4ea4\u6362\u6570\u636e\uff0c\u4e5f\u65e0\u6cd5\u8ba1\u7b97\u51fa\u771f\u6b63\u7684\u5bc6\u94a5\u3002\u5176\u4e2d\u7684\u6838\u5fc3\u6280\u672f\u5c31\u662fDH\uff08Diffie Hellman\uff09\u4ea4\u6362\u6280\u672f\u3002<\/li><\/ul>\n\n\n\n<p>PFS<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u77ed\u6682\u7684\u4e00\u6b21\u6027\u5bc6\u94a5\u7cfb\u7edf\u79f0\u4e3a\u201c\u5b8c\u5584\u7684\u524d\u5411\u4fdd\u5bc6\u201cPFS\uff08Perfect Forward Secrecy\uff09<\/li><li>\u5982\u679c\u52a0\u5bc6\u7cfb\u7edf\u4e2d\u6709\u4e2a\u5bc6\u94a5\u662f\u6240\u6709\u5bf9\u79f0\u5bc6\u94a5\u7684\u884d\u751f\u8005\uff08\u59cb\u7956\uff09\uff0c\u4fbf\u4e0d\u80fd\u8ba4\u4e3a\u90a3\u662f\u4e00\u4e2a\u201c\u5b8c\u7f8e\u5411\u524d\u4fdd\u5bc6\u201d\u7684\u7cfb\u7edf\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u3001\u4e00\u65e6\u7834\u89e3\u4e86\u8ddf\u5bc6\u94a5\uff0c\u4fbf\u80fd\u62ff\u5230\u5176\u4ed6\u884d\u751f\u7684\u6240\u6709\u5bc6\u94a5\uff0c\u6536\u90a3\u4e9b\u5bc6\u94a5\u4fdd\u62a4\u7684\u5168\u90e8\u6570\u636e\u90fd\u4f1a\u66dd\u5149\u3002<\/li><li>\u5728IPsec \u91cc\uff0cPFS\u662f\u901a\u8fc7\u5728IPSec SA\u534f\u5546\u9636\u6bb5\u91cd\u65b0\u8fdb\u884c\u4e00\u4e2aDH\u4ea4\u6362\u6765\u5b9e\u73b0\u7684\u3002<\/li><li>\u5b8c\u5584\u7684\u524d\u5411\u5b89\u5168\u6027PFS\uff08Perfect Forward Secrecy\uff09\u662f\u4e00\u79cd\u5b89\u5168\u7279\u6027\uff0c\u6307\u4e00\u4e2a\u5bc6\u94a5\u88ab\u7834\u89e3\uff0c\u5e76\u4e0d\u5f71\u54cd\u5176\u4ed6\u5bc6\u94a5\u7684\u5b89\u5168\u6027\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u5bc6\u94a5\u95f4\u6ca1\u6709\u6d3e\u751f\u5173\u7cfb\u3002IPSec SA\u7684\u5bc6\u94a5\u662f\u4eceIKE SA\u7684\u5bc6\u94a5\u5bfc\u51fa\u7684\uff0c\u7531\u4e8e\u4e00\u4e2aIKE SA\u534f\u5546\u751f\u6210\u4e00\u5bf9\u6216\u591a\u5bf9IPSec SA\uff0c\u5f53IKE\u7684\u5bc6\u94a5\u88ab\u7a83\u53d6\u540e\uff0c\u653b\u51fb\u8005\u5c06\u53ef\u80fd\u6536\u96c6\u5230\u8db3\u591f\u7684\u4fe1\u606f\u6765\u5bfc\u51faIPSec SA\u7684\u5bc6\u94a5\uff0cPFS\u901a\u8fc7\u6267\u884c\u4e00\u6b21\u989d\u5916\u7684DH\u4ea4\u6362\uff0c\u4fdd\u8bc1IPSec SA\u5bc6\u94a5\u7684\u5b89\u5168\u3002<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"ISAKMP\u62a5\u6587\u683c\u5f0f\uff1a\">ISAKMP\u62a5\u6587\u683c\u5f0f\uff1a<\/h2>\n\n\n\n<p>\u590d\u5236<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>10<br>11<br>12<br>13<br>14<br>15<\/td><td>8 12 16 24 32<br>0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1<br>+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+<br>! \u53d1\u8d77\u8005 !<br>! Initiator Cookie !<br>+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+<br>! \u5e94\u7b54 !<br>! Responder Cookie !<br>+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+<br>! \u4e0b\u4e00\u4e2a\u8f7d\u8377 ! MjVer ! MnVer ! \u4ea4\u6362\u7c7b\u578b ! \u6807\u5fd7 !<br>+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+<br>! \u6d88\u606f ID !<br>+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+<br>! \u957f\u5ea6 !<br>+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>Initiator Cookie \u2015 Initiator Cookie\uff1a\u542f\u52a8 SA \u5efa\u7acb\u3001SA \u901a\u77e5\u6216 SA \u5220\u9664\u7684\u5b9e\u4f53 Cookie\u3002<\/li><li>Responder Cookie \u2015 Responder Cookie\uff1a\u54cd\u5e94 SA \u5efa\u7acb\u3001SA \u901a\u77e5\u6216 SA \u5220\u9664\u7684\u5b9e\u4f53 Cookie\u3002<\/li><li>Next Payload \u2015 \u4fe1\u606f\u4e2d\u7684 Next Payload \u5b57\u6bb5\u7c7b\u578b\u3002<\/li><li>Major Version \u2015 \u4f7f\u7528\u7684 ISAKMP \u534f\u8bae\u7684\u4e3b\u8981\u7248\u672c\u3002<\/li><li>Minor Version \u2015 \u4f7f\u7528\u7684 ISAKMP \u534f\u8bae\u7684\u6b21\u8981\u7248\u672c\u3002<\/li><li>Exchange Type \u2015<\/li><\/ul>\n\n\n\n<p>\u590d\u5236<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>10<br>11<\/td><td>\u8868\u793a\u6240\u7528\u7684\u4ea4\u6362\u7c7b\u578b\u3002\u8fd9\u8868\u793a\u6d88\u606f\u548c\u8f7d\u8377\u9075\u5faa\u6240\u7528\u7684\u4ea4\u6362\u987a\u5e8f\u3002<br>\u4ea4\u6362\u7c7b\u578b \u503c<br>NONE 0<br>Base 1<br>Identity Protection 2<br>Authentication Only 3<br>Aggressive 4<br>Informational 5<br>ISAKMP Future Use 6 &#8211; 31<br>DOI Specific Use 32 &#8211; 239<br>Private Use 240 &#8211; 255<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>Flags \u2015 \u4e3a ISAKMP \u4ea4\u6362\u8bbe\u7f6e\u7684\u5404\u79cd\u9009\u9879\u3002<\/li><li>Message ID \u2015 \u552f\u4e00\u7684\u4fe1\u606f\u6807\u8bc6\u7b26\uff0c\u7528\u6765\u8bc6\u522b\u7b2c2\u9636\u6bb5\u7684\u534f\u8bae\u72b6\u6001\u3002<\/li><li>Length \u2015 \u5168\u90e8\u4fe1\u606f\uff08\u5934\uff0b\u6709\u6548\u8f7d\u8377\uff09\u957f\uff08\u516b\u4f4d\uff09\u3002<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"IKE\u7684\u4e24\u4e2a\u9636\u6bb5\uff1a\">IKE\u7684\u4e24\u4e2a\u9636\u6bb5\uff1a<\/h2>\n\n\n\n<p>\u91c7\u7528IKEv1\u534f\u5546\u5b89\u5168\u8054\u76df\u4e3b\u8981\u5206\u4e3a\u4e24\u4e2a\u9636\u6bb5\uff1a\u7b2c\u4e00\u9636\u6bb5\uff0c\u901a\u4fe1\u53cc\u65b9\u534f\u5546\u548c\u5efa\u7acbIKE\u534f\u8bae\u672c\u8eab\u4f7f\u7528\u7684\u5b89\u5168\u901a\u9053\uff0c\u5373\u5efa\u7acb\u4e00\u4e2aIKE SA\uff1b\u7b2c\u4e8c\u9636\u6bb5\uff0c\u5229\u7528\u7b2c\u4e00\u9636\u6bb5\u5df2\u901a\u8fc7\u8ba4\u8bc1\u548c\u5b89\u5168\u4fdd\u62a4\u7684\u5b89\u5168\u901a\u9053\uff0c\u5efa\u7acb\u4e00\u5bf9\u7528\u4e8e\u6570\u636e\u5b89\u5168\u4f20\u8f93\u7684IPSec\u5b89\u5168\u8054\u76df\u3002<\/p>\n\n\n\n<p>IKEv1\u534f\u5546\u9636\u6bb51\u652f\u6301\u4e24\u79cd\u534f\u5546\u6a21\u5f0f\uff1a\u4e3b\u6a21\u5f0f\uff08Main Mode\uff09\u548c\u91ce\u86ee\u6a21\u5f0f\uff08Aggressive Mode\uff09\u3002<\/p>\n\n\n\n<p>\u7ecf\u5178\u7248\u672c\u7684IKEv1\u6709\u4e24\u4e2a\u9636\u6bb5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u9636\u6bb5\u4e00 \uff1a IKE SA\u4e3b\u6a21\u5f0f\uff086\u4e2a\u5305\uff09\u91ce\u86ee\u6a21\u5f0f\uff083\u4e2a\u5305\uff09<\/li><li>\u9636\u6bb5\u4e8c\uff1aIPSec SA\u5feb\u901f\u6a21\u5f0f\uff083\u4e2a\u5305\uff09<\/li><\/ul>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"\u8be6\u89e3IKEv1\u4e3b\u6a21\u5f0f\u7684\u534f\u5546\u8fc7\u7a0b\">\u8be6\u89e3IKEv1\u4e3b\u6a21\u5f0f\u7684\u534f\u5546\u8fc7\u7a0b<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"IKEv1\u9636\u6bb5\u4e00\u534f\u5546\u8fc7\u7a0b\uff1a\">IKEv1\u9636\u6bb5\u4e00\u534f\u5546\u8fc7\u7a0b\uff1a<\/h2>\n\n\n\n<p>IKEv1\u7684\u4e3b\u6a21\u5f0f\u534f\u5546\uff1a\u5305\u542b\u4e86\u4e09\u6b21\u53cc\u5411\u4ea4\u6362\uff0c\u7528\u5230\u4e86\u516d\u6761ISAKMP\u4fe1\u606f\u3002\u534f\u5546\u8fc7\u7a0b\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/IKEv1%E5%8D%8F%E5%95%86.png\" alt=\"IKEv1\u534f\u5546\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1aIKEv1\u4e3b\u6a21\u5f0f\u7684\u534f\u5546\u8fc7\u7a0b<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/%E4%B8%BB%E6%A8%A1%E5%BC%8F9%E4%B8%AA%E5%8C%85.png\" alt=\"\u4e3b\u6a21\u5f0f9\u4e2a\u5305\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1aIKEv1\u4e3b\u6a21\u5f0f\u534f\u5546\u6293\u5305<\/p>\n\n\n\n<p>IKEv1\u7684\u534f\u5546\u8fc7\u7a0b\u603b\u7528\u7528\u5230\u4e869\u4e2a\u5305\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u8fd9\u4e09\u6b21\u4ea4\u6362\u5206\u522b\u662f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u6d88\u606f\u2460\u548c\u2461\u7528\u4e8e\u7b56\u7565\u4ea4\u6362\u53d1\u8d77\u65b9\u53d1\u9001\u4e00\u4e2a\u6216\u591a\u4e2aIKE\u5b89\u5168\u63d0\u8bae\uff0c\u54cd\u5e94\u65b9\u67e5\u627e\u6700\u5148\u5339\u914d\u7684IKE\u5b89\u5168\u63d0\u8bae\uff0c\u5e76\u5c06\u8fd9\u4e2aIKE\u5b89\u5168\u63d0\u8bae\u56de\u5e94\u7ed9\u53d1\u8d77\u65b9\u3002\u5339\u914d\u7684\u539f\u5219\u4e3a\u534f\u5546\u53cc\u65b9\u5177\u6709\u76f8\u540c\u7684\u52a0\u5bc6\u7b97\u6cd5\u3001\u8ba4\u8bc1\u7b97\u6cd5\u3001\u8ba4\u8bc1\u65b9\u6cd5\u548cDiffie-Hellman\u7ec4\u6807\u8bc6\u3002<\/li><li>\u6d88\u606f\u2462\u548c\u2463\u7528\u4e8e\u5bc6\u94a5\u4fe1\u606f\u4ea4\u6362\u53cc\u65b9\u4ea4\u6362Diffie-Hellman\u516c\u5171\u503c\u548cnonce\u503c\uff0c\u7528\u4e8eIKE SA\u7684\u8ba4\u8bc1\u548c\u52a0\u5bc6\u5bc6\u94a5\u5728\u8fd9\u4e2a\u9636\u6bb5\u4ea7\u751f\u3002<\/li><li>\u6d88\u606f\u2464\u548c\u2465\u7528\u4e8e\u8eab\u4efd\u548c\u8ba4\u8bc1\u4fe1\u606f\u4ea4\u6362\uff08\u53cc\u65b9\u4f7f\u7528\u751f\u6210\u7684\u5bc6\u94a5\u53d1\u9001\u4fe1\u606f\uff09\uff0c\u53cc\u65b9\u8fdb\u884c\u8eab\u4efd\u8ba4\u8bc1\u548c\u5bf9\u6574\u4e2a\u4e3b\u6a21\u5f0f\u4ea4\u6362\u5185\u5bb9\u7684\u8ba4\u8bc1\u3002<\/li><\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>IKE\u5b89\u5168\u63d0\u8bae\u6307IKE\u534f\u5546\u8fc7\u7a0b\u4e2d\u7528\u5230\u7684\u52a0\u5bc6\u7b97\u6cd5\u3001\u8ba4\u8bc1\u7b97\u6cd5\u3001Diffie-Hellman\u7ec4\u53ca\u8ba4\u8bc1\u65b9\u6cd5\u7b49\u3002<\/p><p>nonce\u662f\u4e2a\u968f\u673a\u6570\uff0c\u7528\u4e8e\u4fdd\u8bc1IKE SA\u5b58\u6d3b\u548c\u6297\u91cd\u653e\u653b\u51fb\u3002<\/p><\/blockquote>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u4f7f\u7528\u9884\u5171\u4eab\u79d8\u94a5\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u4e3b\u6a21\u5f0f\u7684\u8be6\u7ec6\u8fc7\u7a0b\uff1a\">\u4f7f\u7528\u9884\u5171\u4eab\u79d8\u94a5\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u4e3b\u6a21\u5f0f\u7684\u8be6\u7ec6\u8fc7\u7a0b\uff1a<\/h2>\n\n\n\n<p>\u5f53\u505a\u4e00\u4e2a\u9884\u5171\u4eab\u79d8\u94a5\u8ba4\u8bc1\u65f6\uff0c\u4e3b\u6a21\u5f0f\u7684\u534f\u5546\u5982\u4e0b\uff1a\u590d\u5236<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>10<\/td><td>follows:<br><br>Initiator Responder<br>&#8212;&#8212;&#8212;- &#8212;&#8212;&#8212;&#8211;<br>1 HDR, SA &#8211;&gt;<br>2 &lt;&#8211; HDR, SA<br>3 HDR, KE, Ni &#8211;&gt;<br>4 &lt;&#8211; HDR, KE, Nr<br>5 HDR*, IDii, HASH_I &#8211;&gt;<br>6 &lt;&#8211; HDR*, IDir, HASH_R<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u7f29\u5199\u540d\u8bcd\u7684\u89e3\u91ca\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>HDR<\/strong>&nbsp;\uff1a\u662fISAKMP\u7684\u6807\u5934\u3002\u5f53\u8bb0\u4e3a HDR* \u8868\u793a\u8be5\u6d41\u91cf\u88ab\u52a0\u5bc6\u3002<\/li><li><strong>SA\uff1a<\/strong>&nbsp;\u662fSA\u5e26\u6709\u4e00\u4e2a\u6216\u591a\u4e2a\u63d0\u8bae\u7684\u6709\u6548\u8f7d\u8377\u3002\u9488\u5bf9\u591a\u4e2a\u63d0\u8bae\uff0c\u53ea\u56de\u590d\u4e00\u4e2a\u3002<\/li><li>KE\uff1a\u79d8\u94a5\u4ea4\u6362<\/li><li>IDii\u548cIDir\u2014\u2014\u6807\u8bc6\uff0c\u901a\u5e38\u8981IP\u5730\u5740<br>HASH_I = prf(SKEYID,K| Ci | Cr| SAi | IDi )<br>HASH_R = prf(SKEYID, K| Ci | Cr | SAr | IDr )<\/li><li>Ni\uff1a\u7b2c\u4e00\u4e2a\u968f\u673a\u6570\uff0c\u7528\u4e8e\u751f\u6210\u5bc6\u94a5<\/li><li>Nr\uff1a\u7b2c\u4e8c\u4e2a\u968f\u673a\u6570\uff0c\u7528\u4e8e\u751f\u6210\u5bc6\u94a5<\/li><li>Ni Nr\u2014-\u4ee3\u8868\u968f\u673a\u6570\uff0c\u901a\u8fc7KE\u4ea4\u6362\u7d20\u6750\u5f97\u5230\u516c\u5171\u7684K\u503c<\/li><li>K\u503c\u4e3a\u63a8\u5bfcSKEYID\u4f7f\u7528<\/li><li>HASH\u503c\u7528\u8fdb\u884c\u8eab\u4efd\u6570\u636e\u9a8c\u8bc1\u3002<\/li><li>\u590d\u52361<br>2<br>3<br>4<br>5<br>6<br>HASH_I = prf(SKEYID, g^xi | g^xr | CKY-I | CKY-R | SAi_b | IDii_b )<br>HASH_R = prf(SKEYID, g^xr | g^xi | CKY-R | CKY-I | SAi_b | IDir_b )<br>\/\/prf\u4f2a\u968f\u673a\u51fd\u6570<br>\/\/g^xy is the Diffie-Hellman shared secret.<br>\/\/ CKY-I and CKY-R are the Initiator&#8217;s cookie and the Responder&#8217;s cookie, respectively, from the ISAKMP header.<br>\/\/ SAi_b is the entire body of the SA payload (minus the ISAKMP generic header)&#8211; i.e. the DOI, situation, all proposals and all transforms offered by the Initiator.<\/li><\/ul>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>\u7b14\u8bb0\uff1a\u62a5\u6587\u534f\u5546\u53c2\u6570\u62c6\u89e3<\/strong>\u590d\u5236<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>10<br>11<br>12<br>13<br>14<br>15<br>16<br>17<br>18<br>19<br>20<br>21<br>22<br>23<br>24<br>25<br>26<br>27<br>28<br>29<br>30<br>31<br>32<br>33<br>34<br>35<br>36<br>37<br>38<br>39<br>40<br>41<br>42<br>43<br>44<br>45<br>46<br>47<br>48<br>49<br>50<br>51<br>52<br>53<br>54<br>55<br>56<br>57<br>58<br>59<br>60<br>61<br>62<br>63<br>64<\/td><td>\u9636\u6bb5\u4e00: IKE SA<br>\u4e3b\u6a21\u5f0f\uff086\u4e2a\u5305\uff09<br>Initiator Responder<br>&#8212;&#8212;&#8212;- &#8212;&#8212;&#8212;&#8211;<br>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br>1-2\u5305\uff0c\u7528\u4e8e\u5b89\u5168\u53c2\u6570\u534f\u5546\uff08\u660e\u6587\uff09<br><br>HDR, SA &#8211;&gt;<br>Ci SAi<br>&lt;&#8211; HDR, SA<br><br>Ci Cr SAr<br><br>SA\u5b89\u5168\u8054\u76df(\u534f\u5546\u5404\u79cd\u53c2\u6570 \u52a0\u5bc6\u7b97\u6cd5 \u9a8c\u8bc1\u7b97\u6cd5 \u9a8c\u8bc1\u65b9\u5f0f\u3010\u9884\u5171\u4eab\u5bc6\u94a5 \u6570\u5b57\u8bc1\u4e66\u3011 DH\u7ec4 \u5bc6\u94a5\u6709\u6548\u671f\uff09<br>HDR\u62c6\u89e3\u4e3aCi\uff0cCr\uff0c\u5206\u522b\u4ee3\u8868Initiator cookie\u548cResponder Cookie\u3002\u7b2c\u4e00\u4e2a\u5305Cr\u4e3a0\u3002<br><br>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br><br>3-4\u4e2a\u5305 \u4ea4\u6362\u5bc6\u94a5\u7d20\u6750\uff0c\u4ee5\u53ca\u4ea7\u751f\u5bc6\u94a5(\u660e\u6587\uff09<br><br>HDR, KE, Ni &#8211;&gt;<br>Ci Cr K Ni<br>&lt;&#8211; HDR, KE, Nr<br>Ci Cr k Nr<br><br>Ni Nr&#8212;-\u4ee3\u8868\u968f\u673a\u6570<br>\u901a\u8fc7KE\u4ea4\u6362\u7d20\u6750\u5f97\u5230\u516c\u5171\u7684K\u503c<br><br>K\u503c\u4e3a\u63a8\u5bfcSKEYID\u4f7f\u7528 K = g^xy<br>SKEYID &#8212;&#8212;\u57fa\u51c6\u5bc6\u94a5<br>\u4f7f\u7528\u9884\u5171\u4eab\u5bc6\u94a5<br>SKEYID = prf(pre-shared-key, Ni|Nr)<br><br>\u4f7f\u7528\u6570\u5b57\u8bc1\u4e66<br>SKEYID = prf(Ni | Nr, K) &#8212;&#8211;\u57fa\u51c6\u5bc6\u94a5<br><br>\u901a\u8fc7SKEYID\u63a8\u5bfc\u4e09\u4e2a\u5bc6\u94a5<br>SKEYID_d = prf(SKEYID, K | Ci | Cr | 0) &#8212;&#8212;&#8212;&#8211;\u63a8\u5bfc\u5bc6\u94a5\uff0c\u884d\u751f\u5bc6\u94a5<br><br>SKEYID_a = prf(SKEYID, SKEYID_d | K | Ci | Cr | 1)&#8212;&#8212;&#8212;\u9a8c\u8bc1\u5bc6\u94a5<br>SKEYID_e = prf(SKEYID, SKEYID_a | K | Ci | Cr | 2)&#8212;&#8212;&#8212;\u52a0\u5bc6\u5bc6\u94a5<br><br>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br><br>5-6 \u4e24\u4e2a\u5305 \u505a\u8eab\u4efd\u9a8c\u8bc1 \uff08\u52a0\u5bc6\uff09<br><br>\u91c7\u7528\u9884\u5171\u4eab\u5bc6\u94a55 6\u4e24\u4e2a\u5305<br>HDR*, IDii, HASH_I &#8211;&gt;<br>Ci Cr<br>&lt;&#8211; HDR*, IDir, HASH_R<br><br><br>IDii\u548cIDir&#8212;&#8212;\u6807\u8bc6\uff0c\u901a\u5e38\u8981IP\u5730\u5740<br>HASH_I = prf(SKEYID,K| Ci | Cr| SAi | IDi )<br>HASH_R = prf(SKEYID, K| Ci | Cr | SAr | IDr )<br><br><br><br>\u91c7\u7528\u6570\u5b57\u8bc1\u4e66\u76845 6\u4e24\u4e2a\u5305<br>HDR*, IDii, [ CERT, ] SIG_I &#8211;&gt;<br><br>&lt;&#8211; HDR*, IDir, [ CERT, ] SIG_R<br><br>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/dh%E7%AE%97%E6%B3%95.png\" alt=\"dh\u7b97\u6cd5\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1a\u901a\u8fc7DH\u7b97\u6cd5\u5f97\u51fa\u5bc6\u94a5<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u9636\u6bb5\u4e00\u7684\u7b2c1\u4e2a\u5305\uff08\u660e\u6587\uff09\uff1a\">\u9636\u6bb5\u4e00\u7684\u7b2c1\u4e2a\u5305\uff08\u660e\u6587\uff09\uff1a<\/h3>\n\n\n\n<p>\u7b2c\u4e00\u5305\u7684\u4f5c\u7528\u662f\uff0c\u534f\u5546\u53d1\u8d77\u53d1\uff0c\u53d1\u9001IKE\u5b89\u5168\u63d0\u8bae\uff0c\u7ed9\u54cd\u5e94\u65b9\u3002\u4e0b\u56fe\u4e3a\u6293\u5305\u793a\u4f8b\u5185\u5bb9\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/main_1.png\" alt=\"main_1\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/main_1_1.png\" alt=\"main_1_1\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1a\u4e3b\u6a21\u5f0f\u7684\u7b2c\u4e00\u4e2a\u5305\u5185\u5bb9\u6293\u5305\u793a\u4f8b<\/p>\n\n\n\n<p>\u9996\u5148\u5f53\u4e24\u4e2a\u8def\u7531\u5668\u6216\u9632\u706b\u5899\u542f\u7528IPSEC\u7684\u65f6\u5019\uff0c\u6211\u4eec\u4ee5\u5176\u4e2d\u4e4b\u4e00\u4e3a\u8d77\u70b9\u3002A-&gt;B\uff0c\u90a3\u4e48A\u5f00\u59cb\u53d1\u9001IKE\u7684\u6570\u636e\u62a5\u6587\u3002\u62a5\u6587\u662fUDP\u7684\u7c7b\u578b\uff0c\u5c01\u88c5\u5728\u7aef\u53e3500\u91cc\u9762\u3002<\/p>\n\n\n\n<p>\u9996\u5148\u662f\u7b2c\u4e00\u4e2a\u4fe1\u606f\u88ab\u53d1\u9001\uff0c\u4e3b\u8981\u5185\u5bb9\u662f<strong>COOKIE\u53f7\u7801\uff0c\u6807\u8bc6\u4e00\u4e2a\u552f\u4e00\u7684IPSEC\u4f1a\u8bdd\uff0c\u4e5f\u6709\u9632\u6b62\u91cd\u653e\u7684\u529f\u80fd<\/strong>\u3002\u5b83\u7684\u5efa\u7acb\u662f\u901a\u5e38\u662f\u57fa\u4e8eIP\u5730\u5740\uff0c\u7aef\u53e3\u7684\u53f7\u7801\uff0c\u65f6\u95f4\u548c\u65e5\u671f\u7b49\u7b49\u8fdb\u884c\u4e00\u4e2a\u6563\u5217\u7b97\u6cd5\uff0c\u751f\u6210\u4e00\u4e2a8\u4f4d\u7684\u968f\u673a\u6570\u3002<strong>\u5bf9\u65b9\u7684COOKIE\u4e3a0<\/strong>\u3002<\/p>\n\n\n\n<p><strong>\u5185\u5bb9\u8fd8\u5305\u542b\u4e00\u4e2aSA\u8d1f\u8f7d\uff0c\u8fd8\u6709\u63d0\u8bae\u8d1f\u8f7d\uff0c\u8f6c\u6362\u8d1f\u8f7d\u3002<\/strong>sa\u7684\u8d1f\u8f7d\u662f\u5b9a\u4f4d\u8fd9\u4e2aISAKMP\u662f\u4e3a\u4e86IPSEC\u5de5\u4f5c\u3002\u56e0\u4e3aIKE\u662f\u4e00\u4e2a\u6807\u51c6\u7684\u534f\u8bae\uff0c\u6240\u4ee5\u5728SA\u8d1f\u8f7d\u4e2d\u901a\u8fc7DOI\uff0c\u89e3\u91ca\u57df\uff0c\u6765\u8bf4\u660e\u8fd9\u6761\u6d88\u606f\u4ea4\u6362\u7528\u4e8eIPSEC\u3002<\/p>\n\n\n\n<p>\u63d0\u8bae\u8d1f\u8f7d\u7684\u5185\u5bb9\u5305\u542b\u4e00\u4e2a\u63d0\u8bae\u53f7\uff0c\u534f\u8baeID\uff0cSPI\uff0c\u8f6c\u6362\u53f7\uff0c\u5176\u4e2dSPI\u4e3a0\uff0c\u8f6c\u6362\u53f7\u6307\u5411\u4e86\u76f8\u5e94\u7684\u8f6c\u6362\u8d1f\u8f7d<\/p>\n\n\n\n<p>\u8f6c\u6362\u8d1f\u8f7d\u7684\u5185\u5bb9\u662f\u52a0\u5bc6\u7684\u53c2\u6570\uff0c\u5982des\uff0cdh\u7b97\u6cd5\uff0c\u5b58\u6d3b\u65f6\u95f4\uff0chash\u7b97\u6cd5\u7b49\u7b49\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u9636\u6bb5\u4e00\u7684\u7b2c2\u4e2a\u5305\uff08\u660e\u6587\uff09\uff1a\">\u9636\u6bb5\u4e00\u7684\u7b2c2\u4e2a\u5305\uff08\u660e\u6587\uff09\uff1a<\/h3>\n\n\n\n<p>\u7b2c2\u4e2a\u5305\u7684\u4f5c\u7528\u4e3b\u8981\u662f\uff1a\u901a\u8fc7\u67e5\u627e\u7b2c\u4e00\u4e2a\u5305\u7684\u5b89\u5168\u63d0\u8bae\u3002\u7ed9\u53d1\u9001\u8005\u56de\u590d\u4e00\u4e2a\u786e\u8ba4\u7684\u5b89\u5168\u63d0\u8bae\u3002\u4e0b\u56fe\u662f\u7b2c\u4e8c\u4e2a\u5305\u7684\u6293\u5305\u5185\u5bb9\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/main_2.png\" alt=\"main_2\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1aIKEv1\u4e3b\u6a21\u5f0f\u534f\u5546\u7b2c\u4e8c\u4e2a\u5305\u6293\u5305<\/p>\n\n\n\n<p>\u7b2c\u4e8c\u4e2a\u5305\u662f\u54cd\u5e94\u65b9\u54cd\u5e94\u4e00\u4e2a\u4fe1\u606f\uff0c<strong>\u4e3b\u8981\u5185\u5bb9\u5c31\u662f\u5bf9\u65b9\u7684COOKIE\u53f7\u7801\uff0c\u548c\u4e00\u4e2a\u63d0\u8bae\u548c\u4e00\u4e2a\u7b56\u7565<\/strong>\uff0c\u6ce8\u610f\uff0c<strong>\u8fd9\u4e2a\u63d0\u8bae\u548c\u7b56\u7565\u662f\u548c\u5f00\u59cb\u91cc\u9762\u7684\u4e00\u4e2a\u5bf9\u5e94\u7684\uff0c\u5426\u5219\uff0c\u5c31\u56de\u4e00\u4e2a\u5931\u8d25\u4fe1\u606f\u3002<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u9636\u6bb5\u4e00\u7684\u7b2c3\u4e2a\u5305\uff08\u660e\u6587\uff09\uff1a\">\u9636\u6bb5\u4e00\u7684\u7b2c3\u4e2a\u5305\uff08\u660e\u6587\uff09\uff1a<\/h3>\n\n\n\n<p>\u7b2c\u4e09\u4e2a\u5305\u7684\u4f5c\u7528\uff1a\u5982\u679c\u53d1\u8d77\u65b9\u63a5\u53d7\u4e86\u5b89\u5168\u63d0\u8bae\uff0c\u5c31\u7ed9\u5bf9\u65b9\u53d1\u9001\u5bc6\u94a5\u751f\u6210\u4fe1\u606f\uff0c\u5bf9\u65b9\u7528\u6765\u751f\u6210IKE\u7684\u79d8\u94a5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/main_3.png\" alt=\"main_3\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1aIKEv1\u4e3b\u6a21\u5f0f\u534f\u5546\u7b2c\u4e09\u4e2a\u5305\u6293\u5305\u793a\u4f8b<\/p>\n\n\n\n<p>\u521d\u59cb\u65b9\u7136\u540e\u56de\u5e94\u7b2c\u4e09\u4e2a\u4fe1\u606f\uff0c\u5185\u5bb9\u662f\u81ea\u5df1\u7684\u516c\u94a5\uff0c\u53d1\u7ed9\u5bf9\u65b9\uff0c\u6ce8\u610f\uff0c\u6b64\u5904\u6211\u7684\u7406\u89e3\u662f\u7d20\u6570\u5df2\u7ecf\u4ea4\u6362\u5b8c\u6bd5\uff0c\u516c\u94a5\u5c31\u662f\u6839\u636e\u81ea\u5df1\u968f\u673a\u4ea7\u751f\u7684\u79c1\u94a5\u52a0\u4e0a\u7d20\u6570\u548c\u4e00\u4e2a\u4ea7\u751f\u5668g\u4e09\u8005\u6765\u4ea7\u751f\u7684\u3002\u540c\u65f6\u4f20\u8f93\u4e00\u4e2a\u968f\u673a\u6570NI\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u9636\u6bb5\u4e00\u7b2c\u56db\u4e2a\u5305\uff08\u660e\u6587\uff09\uff1a\">\u9636\u6bb5\u4e00\u7b2c\u56db\u4e2a\u5305\uff08\u660e\u6587\uff09\uff1a<\/h3>\n\n\n\n<p>\u4e3b\u8981\u4f5c\u7528\uff1a\u534f\u5546\u76f8\u5e94\u65b9\u7ed9\u534f\u5546\u53d1\u8d77\u65b9\u53d1\u9001\u5bc6\u94a5\u751f\u6210\u4fe1\u606f\uff0c\u4f7f\u5f97\u534f\u8bae\u53d1\u8d77\u65b9\u80fd\u751f\u6210\u5bc6\u94a5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/mian_4.png\" alt=\"mian_4\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1aIKEv1\u4e3b\u6a21\u5f0f\u534f\u5546\u7b2c4\u4e2a\u5305\u6293\u5305<\/p>\n\n\n\n<p>\u63a5\u6536\u65b9\u56de\u5e94\u81ea\u5df1\u7684\u516c\u94a5\u7ed9\u521d\u59cb\u65b9\u3002\u5305\u542b\u4e00\u4e2a\u968f\u673a\u6570NR\u3002<\/p>\n\n\n\n<p>\u7136\u540e\u53cc\u65b9\u5404\u81ea\u8ba1\u7b97\u51fa\u5171\u4eab\u7684\u5bc6\u94a5\uff0c\u4e00\u5171\u6709\u4e09\u4e2a\u5bc6\u94a5\uff0cSKEYID_a\uff0cd\uff0ce\uff0c\u5176\u4e2dd\u662f\u6839\u636ez=pfs\uff08pre-shared key\uff0ccookie_i\uff0ccookie_ni\uff0cnl|0\uff09\uff0c\u5176\u4e2dd\u7528\u6765\u7ed9\u7b2c\u4e8c\u9636\u6bb5\u63d0\u4f9b\u5bc6\u94a5\u7684\u7d20\u6750\u3002a\u7528\u6765\u5bf9IKE\u7684\u6570\u636e\u8fdb\u884c\u8ba4\u8bc1\uff0ce\u7528\u6765\u52a0\u5bc6\u6574\u4e2aIKE\u534f\u5546\u7684\u6570\u636e\u3002\u590d\u5236<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>10<br>11<br>12<br>13<\/td><td>K\u503c\u4e3a\u63a8\u5bfcSKEYID\u4f7f\u7528<br>SKEYID &#8212;&#8212;\u57fa\u51c6\u5bc6\u94a5<br>\u4f7f\u7528\u9884\u5171\u4eab\u5bc6\u94a5<br><br>SKEYID = prf(pre-shared-key, Ni|Nr)<br><br>\u4f7f\u7528\u6570\u5b57\u8bc1\u4e66<br>SKEYID = prf(Ni | Nr, K)<br><br>\u901a\u8fc7SKEYID\u63a8\u5bfc\u4e09\u4e2a\u5bc6\u94a5<br>SKEYID_d = prf(SKEYID, K | Ci | Cr | 0) &#8212;&#8212;&#8212;&#8211;\u63a8\u5bfc\u5bc6\u94a5<br>SKEYID_a = prf(SKEYID, SKEYID_d | K | Ci | Cr | 1)&#8212;&#8212;&#8212;\u9a8c\u8bc1\u5bc6\u94a5,\u5bf9\u6570\u636e\u8fdb\u884c\u9a8c\u8bc1<br>SKEYID_e = prf(SKEYID, SKEYID_a | K | Ci | Cr | 2)&#8212;&#8212;&#8212;\u52a0\u5bc6\u5bc6\u94a5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\u5f53\u4f7f\u7528\u9884\u5171\u4eab\u5bc6\u94a5\u8ba4\u8bc1\u4e0e\u4e3b\u6a21\u5f0f\u65f6\uff0c\u5bc6\u94a5\u53ef\u4ee5\u53ea\u80fd\u901a\u8fc7\u5bf9\u7b49\u70b9\u7684IP\u5730\u5740\u6765\u6807\u8bc6\uff0c\u56e0\u4e3a\u5fc5\u987b\u4f7f\u7528HASH_I\uff0c\u5728\u542f\u52a8\u7a0b\u5e8f\u5904\u7406IDir\u4e4b\u524d\u8ba1\u7b97\u3002\u91ce\u86ee\u6a21\u5f0f\u5141\u8bb8\u66f4\u5927\u8303\u56f4\u7684\u9884\u5171\u4eab\u5bc6\u94a5\u6807\u8bc6\u7b26\u88ab\u4f7f\u7528\u3002\u6b64\u5916\uff0c\u91ce\u86ee\u6a21\u5f0f\u5141\u8bb8\u53cc\u65b9\u8fdb\u884c\u7ef4\u62a4\u591a\u4e2a\u4e0d\u540c\u7684\u9884\u5171\u4eab\u5bc6\u94a5\uff0c\u5e76\u786e\u5b9a\u6b63\u786e\u7684\u5bc6\u94a5\u4e00\u4e2a\u7279\u5b9a\u7684\u4ea4\u6362\u3002<\/p><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u9636\u6bb5\u4e00\u7684\u7b2c5\u4e2a\u5305\uff08\u5bc6\u6587\uff09\uff1a\">\u9636\u6bb5\u4e00\u7684\u7b2c5\u4e2a\u5305\uff08\u5bc6\u6587\uff09\uff1a<\/h3>\n\n\n\n<p>\u4e3b\u8981\u4f5c\u7528\uff1a\u53d1\u8d77\u65b9\u53d1\u9001\u8eab\u4efd\u548c\u9a8c\u8bc1\u6570\u636e\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/main_5.png\" alt=\"main_5\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1aIKEv1\u4e3b\u6a21\u5f0f\u534f\u5546\u7b2c5\u4e2a\u5305\u6293\u5305<\/p>\n\n\n\n<p>\u521d\u59cb\u65b9\u5f00\u59cb\u7ee7\u7eed\u534f\u5546\uff0c\u53d1\u9001\u7b2c\u4e94\u4e2a\u4fe1\u606f\uff0c\u6ce8\u610f\uff0c\u6b64\u523b\u6240\u6709\u7684<strong>\u8d1f\u8f7d\u4fe1\u606f\u662f\u88abekey\u52a0\u5bc6\u8fc7\u7684<\/strong>\u3002\u4fe1\u606f\u4e3b\u8981\u5305\u542b\u4e24\u4e2a\u5185\u5bb9\uff0c\u5176\u4e2d\u4e4b\u4e00\u662f\u6807\u8bc6\u8d1f\u8f7d\uff0c\u53e6\u4e00\u4e2a\u662f\u6563<br>\u5217\u8d1f\u8f7d\uff0c\u6807\u8bc6\u8d1f\u8f7d\u7684\u4e3b\u8981\u5185\u5bb9\u662f\u5305\u542b\u81ea\u5df1\u7684IP\u5730\u5740\uff0c\u5c31\u662f\u6211\u4eec\u6240\u8c13\u7684ID_I\uff0c\u6216\u8005\u662f\u4e3b\u673a\u540d\u79f0\u3002\u6563\u5217\u8d1f\u8f7d\u4e3b\u8981\u7684\u5185\u5bb9\u662f\u4f7f\u7528session_a\u8fdb\u884c\u7684\u6563\u5217\u8ba1 \u7b97\uff0c\u8ba1\u7b97\u7684\u53c2\u6570\u6709\u4e0a\u8ff0\u7684Z\uff0c\u548c\u4e24\u7aef\u7684cookie\uff0cpre-share key \uff0c\u63d0\u8bae\uff0c\u8f6c\u6362\u96c6\uff0cSA\u7684\u5185\u5bb9\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u9636\u6bb5\u4e00\u7684\u7b2c6\u4e2a\u5305\uff08\u5bc6\u6587\uff09\uff1a\">\u9636\u6bb5\u4e00\u7684\u7b2c6\u4e2a\u5305\uff08\u5bc6\u6587\uff09\uff1a<\/h3>\n\n\n\n<p>\u4e3b\u8981\u4f5c\u7528: \u534f\u5546\u54cd\u5e94\u65b9\u7ed9\u53d1\u8d77\u65b9\u53d1\u9001\u8eab\u4efd\u548c\u9a8c\u8bc1\u6570\u636e\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/main_6.png\" alt=\"main_6\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1aIKEv1\u4e3b\u6a21\u5f0f\u534f\u5546\u7b2c6\u4e2a\u5305\u6293\u5305<\/p>\n\n\n\n<p>\u7136\u540e\u5f53\u63a5\u6536\u65b9\u6536\u5230\u7684\u65f6\u5019\u8fdb\u884c\u786e\u8ba4\uff0c\u5148\u89e3\u5bc6\uff0c\u7136\u540e\u6839\u636eID\u627e\u5230pre-key\uff0c\u7136\u540e\u8fdb\u884c\u76f8\u540c\u7684\u8ba1\u7b97\uff0c\u5f97\u51fa\u6563\u5217\u7684\u503c\uff0c\u7136\u540e\u5bf9\u6bd4\u63a5\u6536\u547c\u53eb\u3002<\/p>\n\n\n\n<p>\u603b\u7ed3\uff1a\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u6240\u6709\u7684\u6570\u636e\u90fd\u662f\u88ab\u5c01\u88c5\u5728UDP 500\u7684\u7aef\u53e3\u5185\u8fdb\u884c\u534f\u5546\u7684\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"IKEv1\u9636\u6bb5\u4e8c-\u5feb\u901f\u6a21\u5f0f\u534f\u5546\u8fc7\u7a0b\uff1a\">IKEv1\u9636\u6bb5\u4e8c \u5feb\u901f\u6a21\u5f0f\u534f\u5546\u8fc7\u7a0b\uff1a<\/h2>\n\n\n\n<p>IKEv1\u534f\u5546\u9636\u6bb52\u7684\u76ee\u7684\u5c31\u662f\u5efa\u7acb\u7528\u6765\u5b89\u5168\u4f20\u8f93\u6570\u636e\u7684IPSec SA\uff0c\u5e76\u4e3a\u6570\u636e\u4f20\u8f93\u884d\u751f\u51fa\u5bc6\u94a5\u3002\u8fd9\u4e00\u9636\u6bb5\u91c7\u7528\u5feb\u901f\u6a21\u5f0f\uff08Quick Mode\uff09\u3002\u8be5\u6a21\u5f0f\u4f7f\u7528IKEv1\u534f\u5546\u9636\u6bb51\u4e2d\u751f\u6210\u7684\u5bc6\u94a5\u5bf9ISAKMP\u6d88\u606f\u7684\u5b8c\u6574\u6027\u548c\u8eab\u4efd\u8fdb\u884c\u9a8c\u8bc1\uff0c\u5e76\u5bf9ISAKMP\u6d88\u606f\u8fdb\u884c\u52a0\u5bc6\uff0c\u6545\u4fdd\u8bc1\u4e86\u4ea4\u6362\u7684\u5b89\u5168\u6027\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/%E9%98%B6%E6%AE%B5%E4%BA%8C.png\" alt=\"\u9636\u6bb5\u4e8c\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1aIKEv1\u9636\u6bb5\u4e8c\u534f\u5546\u8fc7\u7a0b<\/p>\n\n\n\n<p><strong>\u9636\u6bb5\u4e8c\u7684\u5feb\u901f\u6a21\u5f0f\u7684\u534f\u5546\u5982\u4e0b\uff1a<\/strong>\u590d\u5236<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>1<br>2<br>3<br>4<br>5<br>6<br>7<\/td><td>Initiator Responder<br>&#8212;&#8212;&#8212;&#8211; &#8212;&#8212;&#8212;&#8211;<br>HDR*, HASH(1), SA, Ni<br>[, KE ] [, IDci, IDcr ] &#8211;&gt;<br>&lt;&#8211; HDR*, HASH(2), SA, Nr<br>[, KE ] [, IDci, IDcr ]<br>HDR*, HASH(3) &#8211;&gt;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u590d\u5236<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>1<br>2<br>3<br>4<\/td><td>HASH(1) = prf(SKEYID_a, M-ID | SA | Ni [ | KE ] [ | IDci | IDcr )<br>HASH(2) = prf(SKEYID_a, M-ID | Ni_b | SA | Nr [ | KE ] [ | IDci |<br>IDcr )<br>HASH(3) = prf(SKEYID_a, 0 | M-ID | Ni_b | Nr_b)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>IKEv1\u534f\u5546\u9636\u6bb52\u901a\u8fc7\u4e09\u6761ISAKMP\u6d88\u606f\u5b8c\u6210\u53cc\u65b9IPSec SA\u7684\u5efa\u7acb\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u534f\u5546\u53d1\u8d77\u65b9\u53d1\u9001\u672c\u7aef\u7684\u5b89\u5168\u53c2\u6570\u548c\u8eab\u4efd\u8ba4\u8bc1\u4fe1\u606f\u3002\u5b89\u5168\u53c2\u6570\u5305\u62ec\u88ab\u4fdd\u62a4\u7684\u6570\u636e\u6d41\u548cIPSec\u5b89\u5168\u63d0\u8bae\u7b49\u9700\u8981\u534f\u5546\u7684\u53c2\u6570\u3002\u8eab\u4efd\u8ba4\u8bc1\u4fe1\u606f\u5305\u62ec\u7b2c\u4e00\u9636\u6bb5\u8ba1\u7b97\u51fa\u7684\u5bc6\u94a5\u548c\u7b2c\u4e8c\u9636\u6bb5\u4ea7\u751f\u7684\u5bc6\u94a5\u6750\u6599\u7b49\uff0c\u53ef\u4ee5\u518d\u6b21\u8ba4\u8bc1\u5bf9\u7b49\u4f53\u3002<\/li><li>\u534f\u5546\u54cd\u5e94\u65b9\u53d1\u9001\u786e\u8ba4\u7684\u5b89\u5168\u53c2\u6570\u548c\u8eab\u4efd\u8ba4\u8bc1\u4fe1\u606f\u5e76\u751f\u6210\u65b0\u7684\u5bc6\u94a5\u3002IPSec SA\u6570\u636e\u4f20\u8f93\u9700\u8981\u7684\u52a0\u5bc6\u3001\u9a8c\u8bc1\u5bc6\u94a5\u7531\u7b2c\u4e00\u9636\u6bb5\u4ea7\u751f\u7684\u5bc6\u94a5\u3001SPI\u3001\u534f\u8bae\u7b49\u53c2\u6570\u884d\u751f\u5f97\u51fa\uff0c\u4ee5\u4fdd\u8bc1\u6bcf\u4e2aIPSec SA\u90fd\u6709\u81ea\u5df1\u72ec\u4e00\u65e0\u4e8c\u7684\u5bc6\u94a5\u3002\u5982\u679c\u542f\u7528PSF\uff0c\u5219\u9700\u8981\u518d\u6b21\u5e94\u7528DH\u7b97\u6cd5\u8ba1\u7b97\u51fa\u4e00\u4e2a\u5171\u4eab\u5bc6\u94a5\uff0c\u7136\u540e\u53c2\u4e0e\u4e0a\u8ff0\u8ba1\u7b97\uff0c\u56e0\u6b64\u5728\u53c2\u6570\u534f\u5546\u65f6\u8981\u4e3aPFS\u534f\u5546DH\u5bc6\u94a5\u7ec4\u3002<\/li><li>\u53d1\u9001\u65b9\u53d1\u9001\u786e\u8ba4\u4fe1\u606f\uff0c\u786e\u8ba4\u4e0e\u54cd\u5e94\u65b9\u53ef\u4ee5\u901a\u4fe1\uff0c\u534f\u5546\u7ed3\u675f\u3002<\/li><\/ol>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/quick_1.png\" alt=\"quick_1\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1a\u5feb\u901f\u6a21\u5f0f\u7b2c1\u4e2a\u5305\uff0c\u7b2c2\u4e2a\u5305\uff0c\u7b2c3\u4e2a\u5305\u90fd\u9664\u4e86\u52a0\u5bc6\u6570\u636e\u683c\u5f0f\u90fd\u76f8\u540c<\/p>\n\n\n\n<p>\u7b2c\u4e8c\u9636\u6bb5\uff0c\u5f53\u7b2c\u4e00\u9636\u6bb5\u7ed3\u675f\u540e\uff0c\u6839\u636esession-d\u7684\u5bc6\u94a5\u8d44\u6e90\uff0c\u7136\u540e\u7ee7\u7eed\u8fdb\u884c\u4e24\u6b21\u4ea4\u6362\uff1a<\/p>\n\n\n\n<p>\u7b2c\u4e00\u6b21\u4ea4\u6362\uff0c\u9996\u5148\uff0c\u5224\u65ad\u662f\u5426\u542f\u7528\u4e86PFS\uff08\u5b8c\u7f8e\u8f6c\u53d1\u5b89\u5168\uff09\uff0c\u5982\u679c\u542f\u7528\u7684\u8bdd\uff0c\u6839\u636epfs\u4e2d\u5b9a\u4e49\u7684\u53c2\u6570\u7ee7\u7eed\u8fdb \u884c\u4e00\u4e2a\u534f\u5546\u3002PFS\u662f\u63d0\u8bae\u8005\u5411\u63a5\u6536\u8005\u63d0\u4f9b\u5efa\u8bae \u7684\u5c5e\u6027\u3002\u5982\u679c\u534f\u5546\u5c31\u652f\u6301\uff0c\u5426\u5219\u5c31\u4e0d\u652f\u6301\u3002\u5b83\u7684\u4f5c\u7528\u662f\u5728\u5feb\u901f\u6a21\u5f0f\u4e2d\u91cd\u65b0\u534f\u5546DH\u5bc6\u94a5\u7684\u5c5e\u6027\u3002\u8fd9\u5141\u8bb8\u4f7f\u7528\u65b0\u7684\u5bc6\u94a5\u8fdb\u884cipsec\u52a0\u5bc6\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u7b2c\u4e00\u9636\u6bb5\u751f\u4ea7\u7684\u5bc6\u94a5\u3002<\/p>\n\n\n\n<p>\u5feb\u901f\u6a21\u5f0f\u53ea\u6709\u4e00\u6b21\u4ea4\u6362\uff0cDH\u4ea4\u6362\u5fc5\u987b\u9a6c\u4e0a\u53d1\u751f\u3002\u4e0d\u80fd\u51e0\u6b21\u534f\u5546\u4e86\u3002\u56e0\u6b64\uff0c\u4e24\u7aef\u7684DH\u914d\u7f6e\u5fc5\u987b\u5339\u914d\u3002<\/p>\n\n\n\n<p>\u5f53\u6267\u884cPFS\u7684\u65f6\u5019\uff0c\u518d\u6b21\u6267\u884cDH\u7b97\u6cd5\uff0c\u7136\u540e\uff0c\u91cd\u65b0\u751f\u4ea7\u5bc6\u94a5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u914d\u7f6e\u611f\u5174\u8da3\u6d41\u65f6\u7684\u6ce8\u610f\u4e8b\u9879\uff1a\">\u914d\u7f6e\u611f\u5174\u8da3\u6d41\u65f6\u7684\u6ce8\u610f\u4e8b\u9879\uff1a<\/h2>\n\n\n\n<p>\u5728IKEv1\u4e2d\uff0c\u53cc\u65b9\u7684\u611f\u5174\u8da3\u5218\u5fc5\u987b\u4e92\u4e3a\u955c\u50cf\uff0c\u4e0d\u80fd\u53d6\u4ea4\u96c6\u3002\u800c\u5728IKEv2\u4e2d\u53ef\u4ee5\u53d6\u4ea4\u96c6\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff1a\u57281.1.1.1\/34 \u2014-&gt; 2.2.2.2\/32 \u4e0e 2.2.2.2\/32 \u2014\u2014&gt; 1.1.1.1\/32 \u5728IKEv1\u4e2d\u53ef\u4ee5\u534f\u5546\u3002\u800c1.1.1.1\/34 \u2014-&gt; 2.2.2.2\/32 \u4e0e 2.2.2.0\/24 \u2014-&gt;1.1.1.0\/24 \u5728IKEv1\u4e2d\u4e0d\u53ef\u4ee5\u534f\u5546\uff0c\u5728IKEv2\u4e2d\u53ef\u4ee5\u534f\u5546\u6210\u529f\u3002<\/p>\n\n\n\n<p><strong>\u6ce8\u610f\uff1aSKEYID-e\u7528\u6765\u52a0\u5bc6\u5305\u5f27ISAMKP\u7684\u534f\u8bae\u7684\u6570\u636e\uff0c\u800c\u4e0d\u662f\u7528\u6765\u4fdd\u62a4\u611f\u5174\u8da3\u6d41\u3002<\/strong><\/p>\n\n\n\n<p>\u4fdd\u62a4\u6570\u636e\u6d41\u7684\u5bc6\u94a5\u7528\u7684\u662f\u5bc6\u94a5\u662f\uff1aKEYMAT\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u65e0PFS<br>KEYMAT = prf(SKEYID_d, protocol | SPI | Ni_b | Nr_b).<\/li><li>\u6709PFS<br>KEYMAT = prf(SKEYID_d, g(qm)^xy | protocol | SPI | Ni_b | Nr_b)<\/li><\/ul>\n\n\n\n<p>\u590d\u5236<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>10<br>11<br>12<br>13<\/td><td>&gt; If PFS is not needed, and KE payloads are not exchanged, the new<br>&gt; keying material is defined as<br>&gt;<br>&gt; KEYMAT = prf(SKEYID_d, protocol | SPI | Ni_b | Nr_b).<br>&gt;<br>&gt; If PFS is desired and KE payloads were exchanged, the new keying<br>&gt; material is defined as<br>&gt;<br>&gt; KEYMAT = prf(SKEYID_d, g(qm)^xy | protocol | SPI | Ni_b | Nr_b)<br>&gt;<br>&gt; where g(qm)^xy is the shared secret from the ephemeral Diffie-Hellman<br>&gt; exchange of this Quick Mode.<br>&gt;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"\u8be6\u89e3IKEv1\u91ce\u86ee\u6a21\u5f0f\u7684\u534f\u5546\u8fc7\u7a0b\">\u8be6\u89e3IKEv1\u91ce\u86ee\u6a21\u5f0f\u7684\u534f\u5546\u8fc7\u7a0b<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u91ce\u86ee\u6a21\u5f0f\u534f\u5546\u8fc7\u7a0b\uff1a\">\u91ce\u86ee\u6a21\u5f0f\u534f\u5546\u8fc7\u7a0b\uff1a<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/IKEv1%E9%87%8E%E8%9B%AE%E6%A8%A1%E5%BC%8F.png\" alt=\"IKEv1\u91ce\u86ee\u6a21\u5f0f\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1a\u91ce\u86ee\u6a21\u5f0f\u534f\u5546\u8fc7\u7a0b<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/aggressive%E6%8A%93%E5%8C%85.png\" alt=\"aggressive\u6293\u5305\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1a\u91ce\u86ee\u6a21\u5f0f\u534f\u5546\u8fc7\u7a0b<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u91ce\u86ee\u6a21\u5f0f\u53ea\u7528\u5230\u4e09\u6761\u4fe1\u606f\uff1a\u524d\u4e24\u6761\u6d88\u606f\u2460\u548c\u2461\u7528\u4e8e\u534f\u5546IKE\u5b89\u5168\u63d0\u8bae\uff0c\u4ea4\u6362Diffie-Hellman\u516c\u5171\u503c\u3001\u5fc5\u9700\u7684\u8f85\u52a9\u4fe1\u606f\u4ee5\u53ca\u8eab\u4efd\u4fe1\u606f\uff0c\u5e76\u4e14\u6d88\u606f\u2461\u4e2d\u8fd8\u5305\u62ec\u54cd\u5e94\u65b9\u53d1\u9001\u8eab\u4efd\u4fe1\u606f\u4f9b\u53d1\u8d77\u65b9\u8ba4\u8bc1\uff0c\u6d88\u606f\u2462\u7528\u4e8e\u54cd\u5e94\u65b9\u8ba4\u8bc1\u53d1\u8d77\u65b9\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u4f7f\u7528\u9884\u5171\u4eab\u79d8\u94a5\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u91ce\u86ee\u6a21\u5f0f\u7684\u8be6\u7ec6\u8fc7\u7a0b\uff1a\">\u4f7f\u7528\u9884\u5171\u4eab\u79d8\u94a5\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u91ce\u86ee\u6a21\u5f0f\u7684\u8be6\u7ec6\u8fc7\u7a0b\uff1a<\/h2>\n\n\n\n<p>\u5f53\u505a\u4e00\u4e2a\u9884\u5171\u4eab\u79d8\u94a5\u8ba4\u8bc1\u65f6\uff0c\u91ce\u86ee\u6a21\u5f0f\u7684\u534f\u5546\u5982\u4e0b\uff1a\u590d\u5236<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>1<br>2<br>3<br>4<br>5<\/td><td>Initiator Responder<br>&#8212;&#8212;&#8212;&#8211; &#8212;&#8212;&#8212;&#8211;<br>HDR, SA, KE, Ni, IDii &#8211;&gt;<br>&lt;&#8211; HDR, SA, KE, Nr, IDir, HASH_R<br>HDR, HASH_I &#8211;&gt;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u590d\u5236<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>10<br>11<\/td><td>\u91ce\u86ee\u6a21\u5f0f\uff083\u4e2a\u5305\uff09<br>Initiator Responder<br>&#8212;&#8212;&#8212;&#8211; &#8212;&#8212;&#8212;&#8211;<br>\u7b2c1\u5305&#8212;&#8212;-\u5b89\u5168\u63d0\u8bae\uff08\u5404\u79cd\u534f\u5546\uff09 \u5bc6\u94a5\u4ea4\u6362\u7d20\u6750 \u968f\u673a\u6570 \u8eab\u4efdID<br>HDR, SA, KE, Ni, IDii &#8211;&gt;<br>&lt;&#8211; HDR, SA, KE, Nr, IDir, HASH_R<br><br>\u7b2c2\u5305&#8212;&#8212;&#8212;\u5b89\u5168\u63d0\u8bae\uff0c\u5bc6\u94a5\u4ea4\u6362\u7d20\u6750 \u968f\u673a\u6570 \u8eab\u4efdID HASH_R<br><br>\u7b2c3\u5305&#8212;&#8212;&#8212;\u52a0\u5bc6\u7684\u73af\u5883<br>HDR*, HASH_I &#8211;&gt;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>\u7b2c\u4e00\u4e2a\u5305\u62a5\u6587\u6293\u5305\uff1a<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/agg_1.png\" alt=\"agg_1\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/agg_1_1.png\" alt=\"agg_1_1\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1a\u91ce\u86ee\u6a21\u5f0f\u534f\u5546\u7b2c\u4e00\u4e2a\u5305<\/p>\n\n\n\n<p>\u4e3b\u8981\u643a\u5e26\u4e86\u5b89\u5168\u63d0\u8bae\uff08\u5404\u79cd\u534f\u5546\uff09 \u5bc6\u94a5\u4ea4\u6362\u7d20\u6750 \u968f\u673a\u6570 \u8eab\u4efdID\u7b49\uff0c\u53d1\u9001\u7ed9\u54cd\u5e94\u65b9\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u7b2c\u4e8c\u4e2a\u62a5\u6587\u6293\u5305\uff1a\">\u7b2c\u4e8c\u4e2a\u62a5\u6587\u6293\u5305\uff1a<\/h3>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/agg_2.png\" alt=\"agg_2\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/agg_2_1.png\" alt=\"agg_2_1\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1a\u91ce\u86ee\u6a21\u5f0f\u534f\u5546\u7b2c\u4e8c\u4e2a\u5305<\/p>\n\n\n\n<p>\u7b2c\u4e8c\u4e2a\u5305\uff1a\u4e3b\u8981\u643a\u5e26\u786e\u8ba4\u53cc\u65b9\u90fd\u652f\u6301\u7684\u5b89\u5168\u63d0\u8bae\uff0c\u5bc6\u94a5\u4ea4\u6362\u7d20\u6750 \u968f\u673a\u6570 \u8eab\u4efdID HASH_R\u7b49\uff0c\u53d1\u9001\u7ed9\u534f\u5546\u53d1\u8d77\u65b9\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u7b2c\u4e09\u4e2a\u5305\uff1a\">\u7b2c\u4e09\u4e2a\u5305\uff1a<\/h3>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cshihong.github.io\/2019\/04\/03\/IPSec-VPN%E4%B9%8BIKE%E5%8D%8F%E8%AE%AE%E8%AF%A6%E8%A7%A3\/agg_3.png\" alt=\"agg_3\"\/><\/figure>\n\n\n\n<p>\u56fe\uff1a\u91ce\u86ee\u6a21\u5f0f\u534f\u5546\u7b2c\u4e09\u4e2a\u5305<\/p>\n\n\n\n<p>\u7b2c\u4e09\u4e2a\u5305\uff1a\u7684\u4f20\u8f93\u8fc7\u7a0b\u662f\u52a0\u5bc6\u7684\u3002\u4e3b\u8981\u7528\u4e8e\u54cd\u5e94\u65b9\u8ba4\u8bc1\u53d1\u8d77\u65b9\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"\u4e3b\u6a21\u5f0f\u4e0e\u91ce\u86ee\u6a21\u5f0f\u7684\u533a\u522b\uff1a\">\u4e3b\u6a21\u5f0f\u4e0e\u91ce\u86ee\u6a21\u5f0f\u7684\u533a\u522b\uff1a<\/h1>\n\n\n\n<ol class=\"wp-block-list\"><li>\u4ea4\u6362\u7684\u6d88\u606f\uff1a\u4e3b\u6a21\u5f0f\u4e3a6\u4e2a\u5305\uff0c\u91ce\u86ee\u6a21\u5f0f\u4e3a3\u4e2a\u5305\uff0c\u91ce\u86ee\u6a21\u5f0f\u80fd\u591f\u66f4\u5feb\u521b\u5efaIKE 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