例子中的IP地址均为假设, 正确的IP请查询或加入群13770791
一、在任意客户机上进入命令提示符(或MS-DOS方式), 用arp –a命令查看:
C:WINNTsystem32>arp -a Interface: 192.168.100.93 on Interface 0x1000003 Internet Address Physical Address Type 192.168.100.1 00-50-da-8a-62-2c dynamic 192.168.100.23 00-11-2f-43-81-8b dynamic 192.168.100.24 00-50-da-8a-62-2c dynamic 192.168.100.25 00-05-5d-ff-a8-87 dynamic 192.168.100.200 00-50-ba-fa-59-fe dynamic |
可以看到有两个机器的MAC地址相同, 那么实际检查结果为 00-50-da-8a-62-2c为192.168.0.24的MAC地址, 192.168.100.1的实际MAC地址为00-02-ba-0b-04-32, 我们可以判定192.168.100.24实际上为有病毒的机器, 它伪造了192.168.100.1的MAC地址。
二、在192.168.100.24上进入命令提示符(或MS-DOS方式), 用arp –a命令查看:
C:WINNTsystem32>arp -a Interface: 192.168.100.24 on Interface 0x1000003 Internet Address Physical Address Type 192.168.100.1 00-02-ba-0b-04-32 dynamic 192.168.100.23 00-11-2f-43-81-8b dynamic 192.168.100.25 00-05-5d-ff-a8-87 dynamic 192.168.100.193 00-11-2f-b2-9d-17 dynamic 192.168.100.200 00-50-ba-fa-59-fe dynamic |
三、如果主机可以进入dos窗口, 用arp –a命令可以看到类似下面的现象:
C:WINNTsystem32>arp -a Interface: 192.168.100.1 on Interface 0x1000004 Internet Address Physical Address Type 192.168.100.23 00-50-da-8a-62-2c dynamic 192.168.100.24 00-50-da-8a-62-2c dynamic 192.168.100.25 00-50-da-8a-62-2c dynamic 192.168.100.193 00-50-da-8a-62-2c dynamic 192.168.100.200 00-50-da-8a-62-2c dynamic |
……