{"id":178,"date":"2016-05-03T10:09:53","date_gmt":"2016-05-03T10:09:53","guid":{"rendered":""},"modified":"2016-05-03T10:09:53","modified_gmt":"2016-05-03T10:09:53","slug":"","status":"publish","type":"post","link":"http:\/\/weizn.net\/?p=178","title":{"rendered":"Vlan hopping\u653b\u51fb"},"content":{"rendered":"
<p><span style="font-size:14px;"> <\/span> <\/p>\n<p class="MsoNormal">\n\t<span><\/span>\n<\/p>\n<p style="text-indent:-21pt;margin-left:21pt;" class="MsoListParagraph">\n\t<span style="font-size:14px;"><span style="font-size:14px;">\u4e00\u3001<\/span><\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u4ea4\u6362\u6b3a\u9a97<\/span><span><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">1<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u3001\u7f51\u7edc\u62d3\u6251\u56fe<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-family:\u5b8b\u4f53;font-size:14px;"><\/span><a id="ematt:387" href="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/d0161462266694.jpg" target="_blank"><img title="\u70b9\u51fb\u67e5\u770b\u539f\u56fe" border="0" alt="vlan.jpg" src="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/d0161462266694.jpg" width="876" height="494" \/><\/a><span><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span><\/span><span><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">2<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u3001\u653b\u51fb\u6761\u4ef6<\/span><span><\/span>\n<\/p>\n<p style="text-indent:21pt;" class="MsoNormal">\n\t<span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff08<\/span><span style="font-size:14px;">1<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff09\u653b\u51fb\u8005\u63a5\u5165<\/span><span style="font-size:14px;">Trunk<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u7aef\u53e3\u3002<\/span><span><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;"><span style="font-size:14px;">       <\/span><\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff08<\/span><span style="font-size:14px;">2<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff09\u653b\u51fb\u8005\u8fde\u63a5\u5230\u7684\u4ea4\u6362\u673a\u4e0a\u5fc5\u987b\u542f\u7528\u4e86<\/span><span style="font-size:14px;">802.1Q<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u805a\u5408\u3002<\/span><span><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">3<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u3001\u73af\u5883\u914d\u7f6e<\/span><span><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">Core-1:<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">conf t<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">vlan 10<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">name v1<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">vlan 11<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">name v2<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">exit<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">int e0\/1<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport mode access<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport access vlan 10<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">int e0\/2<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport mode access<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport access vlan 11<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">int e0\/0<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport trunk encapsulation dot1q<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport mode trunk<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport trunk allowed vlan add 10<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport trunk allowed vlan add 11<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">int e0\/3<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport trunk encapsulation dot1q<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport mode trunk<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">Core-2:<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-family:\u5b8b\u4f53;font-size:14px;">\u4eff\u7167<\/span><span style="font-size:14px;">Core-1<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u914d\u7f6e<\/span><span><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">4<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u3001\u653b\u51fb\u8fc7\u7a0b<\/span><span><\/span>\n<\/p>\n<p style="text-indent:21pt;" class="MsoNormal">\n\t<span style="font-size:14px;">Attacker<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u53ef\u4ee5\u4f2a\u9020<\/span><span style="font-size:14px;">802.1Q<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u6570\u636e\u5305\u53d1\u9001\u7ed9<\/span><span style="font-size:14px;">Core-1<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff0c\u4ee5\u6b64\u8bbf\u95ee<\/span><span style="font-size:14px;">vlan11(192.168.0.4)<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff0c\u5728<\/span><span style="font-size:14px;">SW2 port 1<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u548c<\/span><span style="font-size:14px;">SW3 port 1<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u4e0a\u7684\u76d1\u542c\u7ed3\u679c\u5206\u522b\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span> <a id="ematt:389" href="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/f3cc1462266770.jpg" target="_blank"><img title="\u70b9\u51fb\u67e5\u770b\u539f\u56fe" border="0" alt="1.jpg" src="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/f3cc1462266770.jpg" width="976" height="800" \/><\/a>\n<\/p>\n<p><a id="ematt:391" href="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/15601462266796.jpg" target="_blank"><img title="\u70b9\u51fb\u67e5\u770b\u539f\u56fe" border="0" alt="2.jpg" src="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/15601462266796.jpg" width="976" height="800" \/><\/a> <\/p>\n<p style="text-indent:21pt;" class="MsoNormal">\n\t \n<\/p>\n<p><span style="font-family:\u5b8b\u4f53;font-size:14px;"><\/span> <\/p>\n<p class="MsoNormal">\n\t<span><\/span><span><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span><\/span><span><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">5<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u3001\u7ed3\u8bba<\/span><span><\/span>\n<\/p>\n<p style="text-indent:21pt;" class="MsoNormal">\n\t<span style="font-family:\u5b8b\u4f53;font-size:14px;">\u867d\u7136\u53ef\u901a\u8fc7\u6b64\u65b9\u6cd5\u8bbf\u95ee\u5230\u6307\u5b9a\u7684<\/span><span style="font-size:14px;">vlan<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff0c\u4f46\u9650\u5236\u592a\u5927\uff0c\u9996\u5148\u9700\u8981\u63a5\u5165\u5230\u4e00\u4e2a<\/span><span style="font-size:14px;">Trunk<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u7aef\u53e3\uff0c\u5176\u6b21\u9700\u8981\u77e5\u9053\u76ee\u6807<\/span><span style="font-size:14px;">vlan<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u5728<\/span><span style="font-size:14px;">802.1Q<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u4e2d\u7684<\/span><span style="font-size:14px;">ID<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u53f7\u3002<\/span><span><\/span>\n<\/p>\n<p style="text-indent:21pt;" class="MsoNormal">\n\t \n<\/p>\n<p class="MsoNormal">\n\t<span><\/span>\n<\/p>\n<p style="text-indent:-21pt;margin-left:21pt;" class="MsoListParagraph">\n\t<span style="font-size:14px;"><span style="font-size:14px;">\u4e8c\u3001<\/span><\/span><span style="font-size:14px;">Double Tagging<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u653b\u51fb<\/span><span><\/span>\n<\/p>\n<p style="text-indent:-18pt;margin-left:18pt;" class="MsoListParagraph">\n\t<span><span><span style="font-size:14px;">1\u3001<\/span><span style="font-size:14px;">  <\/span><\/span><\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u7f51\u7edc\u62d3\u6251\u56fe<\/span><span><\/span>\n<\/p>\n<p style="text-indent:0cm;margin-left:18pt;" class="MsoListParagraph">\n\t<span style="font-family:\u5b8b\u4f53;font-size:14px;">\u5982\u540c\u4e00\u3002<\/span><span><\/span>\n<\/p>\n<p style="text-indent:-18pt;margin-left:18pt;" class="MsoListParagraph">\n\t<span><span><span style="font-size:14px;">2\u3001<\/span><span style="font-size:14px;">  <\/span><\/span><\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u653b\u51fb\u6761\u4ef6<\/span><span><\/span>\n<\/p>\n<p style="text-indent:-36pt;margin-left:54pt;" class="MsoListParagraph">\n\t<span><span><span style="font-size:14px;">\uff081\uff09<\/span><span style="font-size:14px;">       <\/span><\/span><\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u653b\u51fb\u8005\u8fde\u63a5\u5230<\/span><span style="font-size:14px;">access<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u7aef\u53e3\u3002<\/span><span><\/span>\n<\/p>\n<p style="text-indent:-36pt;margin-left:54pt;" class="MsoListParagraph">\n\t<span><span><span style="font-size:14px;">\uff082\uff09<\/span><span style="font-size:14px;">       <\/span><\/span><\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u653b\u51fb\u8005\u8fde\u63a5\u7684\u4ea4\u6362\u673a\u542f\u7528\u4e86<\/span><span style="font-size:14px;">802.1Q<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u805a\u5408\u3002<\/span><span><\/span>\n<\/p>\n<p style="text-indent:-36pt;margin-left:54pt;" class="MsoListParagraph">\n\t<span><span><span style="font-size:14px;">\uff083\uff09<\/span><span style="font-size:14px;">       <\/span><\/span><\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u653b\u51fb\u8005\u6240\u8fde\u63a5\u7684<\/span><span style="font-size:14px;">access<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u53e3\u6240\u5c5e<\/span><span style="font-size:14px;">VLAN<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u5fc5\u987b\u662f<\/span><span style="font-size:14px;">Trunk<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u7684<\/span><span style="font-size:14px;">Native VLAN<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff08\u672c\u5f81<\/span><span style="font-size:14px;">vlan\uff0c\u5728trunk\u94fe\u8def\u4e0a\u4e0d\u7528\u52a0tag\u7684vlan<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff09\u3002<\/span><span><\/span>\n<\/p>\n<p style="text-indent:-18pt;margin-left:18pt;" class="MsoListParagraph">\n\t<span><span><span style="font-size:14px;">3\u3001<\/span><span style="font-size:14px;">  <\/span><\/span><\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u73af\u5883\u914d\u7f6e<\/span><span><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">Core-1:<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">conf t<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">vlan 10<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">name v1<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">vlan 11<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">name v2<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">exit<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">int e0\/1<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport mode access<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport access vlan 10<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">int e0\/2<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport mode access<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport access vlan 11<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">int e0\/0<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport trunk encapsulation dot1q<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport mode trunk<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport trunk allowed vlan add 10<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport trunk allowed vlan add 11<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span><span style="font-size:14px;">switchport trunk native vlan 10<\/span><span style="font-size:14px;">                <\/span><span style="font-size:14px;">\/\/<\/span><\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u914d\u7f6e\u672c\u5f81<\/span><span style="font-size:14px;">vlan<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">int e0\/3<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport mode access<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">switchport access vlan 10<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">Core-2:<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">\u4eff\u7167Core-1\u914d\u7f6e\uff0ctrunk\u7aef\u53e3\u4e0a\u9700\u914d\u7f6e\u76f8\u540c\u7684native vlan\u3002<\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span><\/span>\n<\/p>\n<p style="text-indent:-18pt;margin-left:18pt;" class="MsoListParagraph">\n\t<span><span><span style="font-size:14px;">4\u3001<\/span><span style="font-size:14px;">  <\/span><\/span><\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u653b\u51fb\u8fc7\u7a0b<\/span><span><\/span>\n<\/p>\n<p style="text-indent:0cm;margin-left:18pt;" class="MsoListParagraph">\n\t<span style="font-size:14px;">Attacker<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u53ef\u4ee5\u4f2a\u9020<\/span><span style="font-size:14px;">Double Tagging<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u53d1\u9001\u81f3<\/span><span style="font-size:14px;">Core-1<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff0c\u7531\u4e8e\u5728<\/span><span style="font-size:14px;">Trunk<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u53e3\u4e0a\u8bbe\u7f6e\u7684\u672c\u5f81<\/span><span style="font-size:14px;">vlan<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u4e0e<\/span><span style="font-size:14px;">Attacker<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u6240\u5c5e\u7684<\/span><span style="font-size:14px;">vlan<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u76f8\u540c\uff0c\u6240\u4ee5<\/span><span style="font-size:14px;">Core-1<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u4f1a\u53bb\u6389\u7b2c\u4e00\u5c42<\/span><span style="font-size:14px;">tag<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff0c\u7136\u540e\u5c06\u6570\u636e\u5305\u53d1\u9001\u7ed9<\/span><span style="font-size:14px;">Core-2<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff0c\u800c\u5728\u7b2c\u4e8c\u5c42<\/span><span style="font-size:14px;">tag<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u4e2d\uff0c\u8bbf\u95ee\u7684<\/span><span style="font-size:14px;">vlan ID<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u5c5e\u4e8e<\/span><span style="font-size:14px;">vlan11<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff0c\u56e0\u6b64<\/span><span style="font-size:14px;">Core-2<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u5c31\u5c06\u6b64\u6570\u636e\u5305\u8f6c\u53d1\u5230<\/span><span style="font-size:14px;">vlan11<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u4e2d\u3002\u5728<\/span><span style="font-size:14px;">SW2 PORT 1<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u3001<\/span><span style="font-size:14px;">SW1 PORT 1<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u548c<\/span><span style="font-size:14px;">SW3 PORT 1<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u5206\u522b\u6293\u5305\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span>\n<\/p>\n<p>\n\t<a href="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/f3cc1462266866.jpg" target="_blank"><img title="\u70b9\u51fb\u67e5\u770b\u539f\u56fe" border="0" alt="1.jpg" src="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/f3cc1462266866.jpg" width="976" height="800" \/><\/a>\n<\/p>\n<p>\n\t<a id="ematt:395" href="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/15601462266867.jpg" target="_blank"><img title="\u70b9\u51fb\u67e5\u770b\u539f\u56fe" border="0" alt="2.jpg" src="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/15601462266867.jpg" width="976" height="800" \/><\/a>\n<\/p>\n<p>\n\t<a id="ematt:397" href="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/799b1462266867.jpg" target="_blank"><img title="\u70b9\u51fb\u67e5\u770b\u539f\u56fe" border="0" alt="3.jpg" src="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/799b1462266867.jpg" width="976" height="800" \/><\/a>\n<\/p>\n<p>\n\t \n<\/p>\n<p><span style="font-size:14px;"><\/span> <\/p>\n<p style="text-indent:-18pt;margin-left:18pt;" class="MsoListParagraph">\n\t<span><span><span style="font-size:14px;">5\u3001<\/span><span style="font-size:14px;">  <\/span><\/span><\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u9650\u5236<\/span><span><\/span>\n<\/p>\n<p style="margin-left:21pt;" class="MsoListParagraph">\n\t<span style="font-family:\u5b8b\u4f53;font-size:14px;">\u5bf9\u4e8e<\/span><span style="font-size:14px;">Double Tagging<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u653b\u51fb\uff0c\u5373\u4f7f\u53ef\u4ee5\u8ba9\u6570\u636e\u5305\u8df3\u8dc3<\/span><span style="font-size:14px;">vlan<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\uff0c\u4f46\u662f\u5374\u65e0\u6cd5\u63a5\u6536\u5230\u8fd4\u56de\u7684\u5e94\u7b54\u5305\uff0c\u653b\u51fb\u573a\u666f\u5f88\u6709\u9650\u3002<\/span><span><\/span>\n<\/p>\n<p style="text-indent:-18pt;margin-left:18pt;" class="MsoListParagraph">\n\t<span><span><span style="font-size:14px;">6\u3001<\/span><span style="font-size:14px;">  <\/span><\/span><\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u5176\u5b83\u4e00\u4e9b\u601d\u8def<\/span><span><\/span>\n<\/p>\n<p style="margin-left:21pt;" class="MsoListParagraph">\n\t<span style="font-family:\u5b8b\u4f53;font-size:14px;">\u6570\u636e\u5305\u8df3\u8dc3<\/span><span style="font-size:14px;">vlan<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u540e\u7684\u786e\u662f\u65e0\u6cd5\u518d\u8fd4\u56de\u5230\u653b\u51fb\u8005\u6240\u5728\u7684<\/span><span style="font-size:14px;">vlan<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u4e86\uff0c\u4f46\u6211\u4eec\u8fd8\u662f\u53ef\u4ee5\u901a\u8fc7\u5176\u5b83\u4e00\u4e9b\u624b\u6bb5\u53bb\u63a2\u6d4b\u53e6\u4e00\u4e2a\u7f51\u6bb5\u7684\u4fe1\u606f\uff0c\u601d\u8def\u5c31\u662f\u53d1\u9001\u8fc7\u53bb\u7684\u6570\u636e\u5305\u540c\u65f6\u4f2a\u9020\u6765\u6e90\u5730\u5740\uff0c\u8ba9\u6536\u5230\u6570\u636e\u5305\u7684\u4e3b\u673a\u5c06\u54cd\u5e94\u5305\u53d1\u9001\u5230\u653b\u51fb\u8005\u4f2a\u9020\u7684\u6e90\u5730\u5740\u4e0a\uff0c\u6bd4\u5982\u5c06\u54cd\u5e94\u5305\u8fd4\u56de\u5230\u5916\u7f51<\/span><span style="font-size:14px;">IP<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u3002\u7528\u8fd9\u79cd\u624b\u6cd5\u53ef\u4ee5\u5c1d\u8bd5\u53bb\u626b\u63cf\u53e6\u4e00\u4e2a<\/span><span style="font-size:14px;">vlan<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u7684\u5f00\u653e\u670d\u52a1\u3002<\/span><span><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span style="font-size:14px;">7<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u3001\u5b9e\u6d4b<\/span><span><\/span>\n<\/p>\n<p style="text-indent:21pt;" class="MsoNormal">\n\t<span style="font-family:\u5b8b\u4f53;font-size:14px;">\u5728<\/span><span style="font-size:14px;">SW2 PORT 1<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u548c<\/span><span style="font-size:14px;">SW4 PORT 1<\/span><span style="font-family:\u5b8b\u4f53;font-size:14px;">\u4e0a\u6293\u5305\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span><span><\/span><a id="ematt:399" href="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/f3cc1462328820.jpg" target="_blank"><img title="\u70b9\u51fb\u67e5\u770b\u539f\u56fe" border="0" alt="1.jpg" src="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/f3cc1462328820.jpg" width="975" height="800" \/><\/a>\n<\/p>\n<p><a id="ematt:401" href="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/15601462328820.jpg" target="_blank"><img title="\u70b9\u51fb\u67e5\u770b\u539f\u56fe" border="0" alt="2.jpg" src="http:\/\/www.weizn.net\/content\/uploadfile\/201605\/15601462328820.jpg" width="976" height="800" \/><\/a> <\/p>\n<p style="text-indent:21pt;" class="MsoNormal">\n\t \n<\/p>\n<p class="MsoNormal">\n\t<span style="font-family:\u5b8b\u4f53;font-size:14px;"><\/span> \n<\/p>\n<p class="MsoNormal">\n\t<span style="font-family:\u5b8b\u4f53;font-size:14px;">\u53c2\u8003\uff1a<\/span><span><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span><a href="https:\/\/www.nlogic.co\/understanding-vlan-hopping-attacks\/"><span style="font-size:14px;">https:\/\/www.nlogic.co\/understanding-vlan-hopping-attacks\/<\/span><\/a><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span><a href="http:\/\/syslog.lofter.com\/post\/426320_1782d76"><span style="font-size:14px;">http:\/\/syslog.lofter.com\/post\/426320_1782d76<\/span><\/a><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span><a href="http:\/\/jasonliping.blog.51cto.com\/471157\/1153039"><span style="font-size:14px;">http:\/\/jasonliping.blog.51cto.com\/471157\/1153039<\/span><\/a><\/span>\n<\/p>\n<p class="MsoNormal">\n\t<span><\/span><\/p>\n<\/div>

 <\/span> <\/p>\n

\n\t<\/span>\n<\/p>\n

\n\t\u4e00\u3001<\/span><\/span>\u4ea4\u6362\u6b3a\u9a97<\/span><\/span>\n<\/p>\n

\n\t1<\/span>\u3001\u7f51\u7edc\u62d3\u6251\u56fe<\/span>\n<\/p>\n

\n\t<\/span>\"vlan.jpg\"<\/a><\/span>\n<\/p>\n

\n\t<\/span><\/span>\n<\/p>\n

\n\t2<\/span>\u3001\u653b\u51fb\u6761\u4ef6<\/span><\/span>\n<\/p>\n

\n\t\uff08<\/span>1<\/span>\uff09\u653b\u51fb\u8005\u63a5\u5165<\/span>Trunk<\/span>\u7aef\u53e3\u3002<\/span><\/span>\n<\/p>\n

\n\t       <\/span><\/span>\uff08<\/span>2<\/span>\uff09\u653b\u51fb\u8005\u8fde\u63a5\u5230\u7684\u4ea4\u6362\u673a\u4e0a\u5fc5\u987b\u542f\u7528\u4e86<\/span>802.1Q<\/span>\u805a\u5408\u3002<\/span><\/span>\n<\/p>\n

\n\t3<\/span>\u3001\u73af\u5883\u914d\u7f6e<\/span><\/span>\n<\/p>\n

\n\tCore-1:<\/span>\n<\/p>\n

\n\tconf t<\/span>\n<\/p>\n

\n\tvlan 10<\/span>\n<\/p>\n

\n\tname v1<\/span>\n<\/p>\n

\n\tvlan 11<\/span>\n<\/p>\n

\n\tname v2<\/span>\n<\/p>\n

\n\texit<\/span>\n<\/p>\n

\n\tint e0\/1<\/span>\n<\/p>\n

\n\tswitchport mode access<\/span>\n<\/p>\n

\n\tswitchport access vlan 10<\/span>\n<\/p>\n

\n\tint e0\/2<\/span>\n<\/p>\n

\n\tswitchport mode access<\/span>\n<\/p>\n

\n\tswitchport access vlan 11<\/span>\n<\/p>\n

\n\tint e0\/0<\/span>\n<\/p>\n

\n\tswitchport trunk encapsulation dot1q<\/span>\n<\/p>\n

\n\tswitchport mode trunk<\/span>\n<\/p>\n

\n\tswitchport trunk allowed vlan add 10<\/span>\n<\/p>\n

\n\tswitchport trunk allowed vlan add 11<\/span>\n<\/p>\n

\n\tint e0\/3<\/span>\n<\/p>\n

\n\tswitchport trunk encapsulation dot1q<\/span>\n<\/p>\n

\n\tswitchport mode trunk<\/span>\n<\/p>\n

\n\tCore-2:<\/span>\n<\/p>\n

\n\t\u4eff\u7167<\/span>Core-1<\/span>\u914d\u7f6e<\/span><\/span>\n<\/p>\n

\n\t4<\/span>\u3001\u653b\u51fb\u8fc7\u7a0b<\/span><\/span>\n<\/p>\n

\n\tAttacker<\/span>\u53ef\u4ee5\u4f2a\u9020<\/span>802.1Q<\/span>\u6570\u636e\u5305\u53d1\u9001\u7ed9<\/span>Core-1<\/span>\uff0c\u4ee5\u6b64\u8bbf\u95ee<\/span>vlan11(192.168.0.4)<\/span>\uff0c\u5728<\/span>SW2 port 1<\/span>\u548c<\/span>SW3 port 1<\/span>\u4e0a\u7684\u76d1\u542c\u7ed3\u679c\u5206\u522b\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span> \"1.jpg\"<\/a>\n<\/p>\n

\"2.jpg\"<\/a> <\/p>\n

\n\t \n<\/p>\n

<\/span> <\/p>\n

\n\t<\/span><\/span>\n<\/p>\n

\n\t<\/span><\/span>\n<\/p>\n

\n\t5<\/span>\u3001\u7ed3\u8bba<\/span><\/span>\n<\/p>\n

\n\t\u867d\u7136\u53ef\u901a\u8fc7\u6b64\u65b9\u6cd5\u8bbf\u95ee\u5230\u6307\u5b9a\u7684<\/span>vlan<\/span>\uff0c\u4f46\u9650\u5236\u592a\u5927\uff0c\u9996\u5148\u9700\u8981\u63a5\u5165\u5230\u4e00\u4e2a<\/span>Trunk<\/span>\u7aef\u53e3\uff0c\u5176\u6b21\u9700\u8981\u77e5\u9053\u76ee\u6807<\/span>vlan<\/span>\u5728<\/span>802.1Q<\/span>\u4e2d\u7684<\/span>ID<\/span>\u53f7\u3002<\/span><\/span>\n<\/p>\n

\n\t \n<\/p>\n

\n\t<\/span>\n<\/p>\n

\n\t\u4e8c\u3001<\/span><\/span>Double Tagging<\/span>\u653b\u51fb<\/span><\/span>\n<\/p>\n

\n\t1\u3001<\/span>  <\/span><\/span><\/span>\u7f51\u7edc\u62d3\u6251\u56fe<\/span><\/span>\n<\/p>\n

\n\t\u5982\u540c\u4e00\u3002<\/span><\/span>\n<\/p>\n

\n\t2\u3001<\/span>  <\/span><\/span><\/span>\u653b\u51fb\u6761\u4ef6<\/span><\/span>\n<\/p>\n

\n\t\uff081\uff09<\/span>       <\/span><\/span><\/span>\u653b\u51fb\u8005\u8fde\u63a5\u5230<\/span>access<\/span>\u7aef\u53e3\u3002<\/span><\/span>\n<\/p>\n

\n\t\uff082\uff09<\/span>       <\/span><\/span><\/span>\u653b\u51fb\u8005\u8fde\u63a5\u7684\u4ea4\u6362\u673a\u542f\u7528\u4e86<\/span>802.1Q<\/span>\u805a\u5408\u3002<\/span><\/span>\n<\/p>\n

\n\t\uff083\uff09<\/span>       <\/span><\/span><\/span>\u653b\u51fb\u8005\u6240\u8fde\u63a5\u7684<\/span>access<\/span>\u53e3\u6240\u5c5e<\/span>VLAN<\/span>\u5fc5\u987b\u662f<\/span>Trunk<\/span>\u7684<\/span>Native VLAN<\/span>\uff08\u672c\u5f81<\/span>vlan\uff0c\u5728trunk\u94fe\u8def\u4e0a\u4e0d\u7528\u52a0tag\u7684vlan<\/span>\uff09\u3002<\/span><\/span>\n<\/p>\n

\n\t3\u3001<\/span>  <\/span><\/span><\/span>\u73af\u5883\u914d\u7f6e<\/span><\/span>\n<\/p>\n

\n\tCore-1:<\/span>\n<\/p>\n

\n\tconf t<\/span>\n<\/p>\n

\n\tvlan 10<\/span>\n<\/p>\n

\n\tname v1<\/span>\n<\/p>\n

\n\tvlan 11<\/span>\n<\/p>\n

\n\tname v2<\/span>\n<\/p>\n

\n\texit<\/span>\n<\/p>\n

\n\tint e0\/1<\/span>\n<\/p>\n

\n\tswitchport mode access<\/span>\n<\/p>\n

\n\tswitchport access vlan 10<\/span>\n<\/p>\n

\n\tint e0\/2<\/span>\n<\/p>\n

\n\tswitchport mode access<\/span>\n<\/p>\n

\n\tswitchport access vlan 11<\/span>\n<\/p>\n

\n\tint e0\/0<\/span>\n<\/p>\n

\n\tswitchport trunk encapsulation dot1q<\/span>\n<\/p>\n

\n\tswitchport mode trunk<\/span>\n<\/p>\n

\n\tswitchport trunk allowed vlan add 10<\/span>\n<\/p>\n

\n\tswitchport trunk allowed vlan add 11<\/span>\n<\/p>\n

\n\tswitchport trunk native vlan 10<\/span>                <\/span>\/\/<\/span><\/span>\u914d\u7f6e\u672c\u5f81<\/span>vlan<\/span>\n<\/p>\n

\n\tint e0\/3<\/span>\n<\/p>\n

\n\tswitchport mode access<\/span>\n<\/p>\n

\n\tswitchport access vlan 10<\/span>\n<\/p>\n

\n\tCore-2:<\/span>\n<\/p>\n

\n\t\u4eff\u7167Core-1\u914d\u7f6e\uff0ctrunk\u7aef\u53e3\u4e0a\u9700\u914d\u7f6e\u76f8\u540c\u7684native vlan\u3002<\/span>\n<\/p>\n

\n\t<\/span>\n<\/p>\n

\n\t4\u3001<\/span>  <\/span><\/span><\/span>\u653b\u51fb\u8fc7\u7a0b<\/span><\/span>\n<\/p>\n

\n\tAttacker<\/span>\u53ef\u4ee5\u4f2a\u9020<\/span>Double Tagging<\/span>\u53d1\u9001\u81f3<\/span>Core-1<\/span>\uff0c\u7531\u4e8e\u5728<\/span>Trunk<\/span>\u53e3\u4e0a\u8bbe\u7f6e\u7684\u672c\u5f81<\/span>vlan<\/span>\u4e0e<\/span>Attacker<\/span>\u6240\u5c5e\u7684<\/span>vlan<\/span>\u76f8\u540c\uff0c\u6240\u4ee5<\/span>Core-1<\/span>\u4f1a\u53bb\u6389\u7b2c\u4e00\u5c42<\/span>tag<\/span>\uff0c\u7136\u540e\u5c06\u6570\u636e\u5305\u53d1\u9001\u7ed9<\/span>Core-2<\/span>\uff0c\u800c\u5728\u7b2c\u4e8c\u5c42<\/span>tag<\/span>\u4e2d\uff0c\u8bbf\u95ee\u7684<\/span>vlan ID<\/span>\u5c5e\u4e8e<\/span>vlan11<\/span>\uff0c\u56e0\u6b64<\/span>Core-2<\/span>\u5c31\u5c06\u6b64\u6570\u636e\u5305\u8f6c\u53d1\u5230<\/span>vlan11<\/span>\u4e2d\u3002\u5728<\/span>SW2 PORT 1<\/span>\u3001<\/span>SW1 PORT 1<\/span>\u548c<\/span>SW3 PORT 1<\/span>\u5206\u522b\u6293\u5305\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span>\n<\/p>\n

\n\t\"1.jpg\"<\/a>\n<\/p>\n

\n\t\"2.jpg\"<\/a>\n<\/p>\n

\n\t\"3.jpg\"<\/a>\n<\/p>\n

\n\t \n<\/p>\n

<\/span> <\/p>\n

\n\t5\u3001<\/span>  <\/span><\/span><\/span>\u9650\u5236<\/span><\/span>\n<\/p>\n

\n\t\u5bf9\u4e8e<\/span>Double Tagging<\/span>\u653b\u51fb\uff0c\u5373\u4f7f\u53ef\u4ee5\u8ba9\u6570\u636e\u5305\u8df3\u8dc3<\/span>vlan<\/span>\uff0c\u4f46\u662f\u5374\u65e0\u6cd5\u63a5\u6536\u5230\u8fd4\u56de\u7684\u5e94\u7b54\u5305\uff0c\u653b\u51fb\u573a\u666f\u5f88\u6709\u9650\u3002<\/span><\/span>\n<\/p>\n

\n\t6\u3001<\/span>  <\/span><\/span><\/span>\u5176\u5b83\u4e00\u4e9b\u601d\u8def<\/span><\/span>\n<\/p>\n

\n\t\u6570\u636e\u5305\u8df3\u8dc3<\/span>vlan<\/span>\u540e\u7684\u786e\u662f\u65e0\u6cd5\u518d\u8fd4\u56de\u5230\u653b\u51fb\u8005\u6240\u5728\u7684<\/span>vlan<\/span>\u4e86\uff0c\u4f46\u6211\u4eec\u8fd8\u662f\u53ef\u4ee5\u901a\u8fc7\u5176\u5b83\u4e00\u4e9b\u624b\u6bb5\u53bb\u63a2\u6d4b\u53e6\u4e00\u4e2a\u7f51\u6bb5\u7684\u4fe1\u606f\uff0c\u601d\u8def\u5c31\u662f\u53d1\u9001\u8fc7\u53bb\u7684\u6570\u636e\u5305\u540c\u65f6\u4f2a\u9020\u6765\u6e90\u5730\u5740\uff0c\u8ba9\u6536\u5230\u6570\u636e\u5305\u7684\u4e3b\u673a\u5c06\u54cd\u5e94\u5305\u53d1\u9001\u5230\u653b\u51fb\u8005\u4f2a\u9020\u7684\u6e90\u5730\u5740\u4e0a\uff0c\u6bd4\u5982\u5c06\u54cd\u5e94\u5305\u8fd4\u56de\u5230\u5916\u7f51<\/span>IP<\/span>\u3002\u7528\u8fd9\u79cd\u624b\u6cd5\u53ef\u4ee5\u5c1d\u8bd5\u53bb\u626b\u63cf\u53e6\u4e00\u4e2a<\/span>vlan<\/span>\u7684\u5f00\u653e\u670d\u52a1\u3002<\/span><\/span>\n<\/p>\n

\n\t7<\/span>\u3001\u5b9e\u6d4b<\/span><\/span>\n<\/p>\n

\n\t\u5728<\/span>SW2 PORT 1<\/span>\u548c<\/span>SW4 PORT 1<\/span>\u4e0a\u6293\u5305\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span><\/span>\"1.jpg\"<\/a>\n<\/p>\n

\"2.jpg\"<\/a> <\/p>\n

\n\t \n<\/p>\n

\n\t<\/span> \n<\/p>\n

\n\t\u53c2\u8003\uff1a<\/span><\/span>\n<\/p>\n

\n\thttps:\/\/www.nlogic.co\/understanding-vlan-hopping-attacks\/<\/span><\/a><\/span>\n<\/p>\n

\n\thttp:\/\/syslog.lofter.com\/post\/426320_1782d76<\/span><\/a><\/span>\n<\/p>\n

\n\thttp:\/\/jasonliping.blog.51cto.com\/471157\/1153039<\/span><\/a><\/span>\n<\/p>\n

\n\t<\/span><\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

 <\/span> <\/p>\n

\n\t\u4e00\u3001<\/span><\/span>\u4ea4\u6362\u6b3a\u9a97<\/span>\n<\/p>\n

\n\t1<\/span>\u3001\u7f51\u7edc\u62d3\u6251\u56fe<\/span>\n<\/p>\n

\n\t\"vlan.jpg\"<\/a>\n<\/p>\n

\n\t2<\/span>\u3001\u653b\u51fb\u6761\u4ef6<\/span>\n<\/p>\n

\n\t\uff08<\/span>1<\/span>\uff09\u653b\u51fb\u8005\u63a5\u5165<\/span>Trunk<\/span>\u7aef\u53e3\u3002<\/span>\n<\/p>\n

\n\t         <\/span><\/span>\uff08<\/span>2<\/span>\uff09\u653b\u51fb\u8005\u8fde\u63a5\u5230\u7684\u4ea4\u6362\u673a\u4e0a\u5fc5\u987b\u542f\u7528\u4e86<\/span>802.1Q<\/span>\u805a\u5408\u3002<\/span>\n<\/p>\n

\n\t3<\/span>\u3001\u73af\u5883\u914d\u7f6e<\/span>\n<\/p>\n

\n\tCore-1:<\/span>\n<\/p>\n

\n\tconf t<\/span>\n<\/p>\n

\n\tvlan 10<\/span>\n<\/p>\n

\n\tname v1<\/span>\n<\/p>\n

\n\tvlan 11<\/span>\n<\/p>\n

\n\tname v2<\/span>\n<\/p>\n

\n\texit<\/span>\n<\/p>\n

\n\tint e0\/1<\/span>\n<\/p>\n

\n\tswitchport mode access<\/span>\n<\/p>\n

\n\ts…<\/span><\/p>\n","protected":false},"author":1,"featured_media":580,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[321],"tags":[],"class_list":["post-178","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"yoast_head":"\nVlan hopping\u653b\u51fb - Wayne's Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/weizn.net\/?p=178\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vlan hopping\u653b\u51fb - Wayne's Blog\" \/>\n<meta property=\"og:description\" content=\"  \u4e00\u3001\u4ea4\u6362\u6b3a\u9a97 1\u3001\u7f51\u7edc\u62d3\u6251\u56fe 2\u3001\u653b\u51fb\u6761\u4ef6 \uff081\uff09\u653b\u51fb\u8005\u63a5\u5165Trunk\u7aef\u53e3\u3002          \uff082\uff09\u653b\u51fb\u8005\u8fde\u63a5\u5230\u7684\u4ea4\u6362\u673a\u4e0a\u5fc5\u987b\u542f\u7528\u4e86802.1Q\u805a\u5408\u3002 3\u3001\u73af\u5883\u914d\u7f6e Core-1: conf t vlan 10 name v1 vlan 11 name v2 exit int e0\/1 switchport mode access s...\" \/>\n<meta property=\"og:url\" content=\"http:\/\/weizn.net\/?p=178\" \/>\n<meta property=\"og:site_name\" content=\"Wayne's Blog\" \/>\n<meta property=\"article:published_time\" content=\"2016-05-03T10:09:53+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/weizn.net\/wp-content\/uploads\/2020\/10\/5ad03dd774e7-article-191108-cisco.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"807\" \/>\n\t<meta property=\"og:image:height\" content=\"403\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"zinan\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"http:\/\/weizn.net\/#website\",\"url\":\"http:\/\/weizn.net\/\",\"name\":\"Wayne's Blog\",\"description\":\"\",\"publisher\":{\"@id\":\"http:\/\/weizn.net\/#\/schema\/person\/e88bc12c590502d8b6249326f960b264\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"http:\/\/weizn.net\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"ImageObject\",\"@id\":\"http:\/\/weizn.net\/?p=178#primaryimage\",\"inLanguage\":\"zh-Hans\",\"url\":\"http:\/\/weizn.net\/wp-content\/uploads\/2020\/10\/5ad03dd774e7-article-191108-cisco.jpg\",\"contentUrl\":\"http:\/\/weizn.net\/wp-content\/uploads\/2020\/10\/5ad03dd774e7-article-191108-cisco.jpg\",\"width\":807,\"height\":403},{\"@type\":\"WebPage\",\"@id\":\"http:\/\/weizn.net\/?p=178#webpage\",\"url\":\"http:\/\/weizn.net\/?p=178\",\"name\":\"Vlan hopping\\u653b\\u51fb - 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