标签:roc 图片 端口 range 服务 ado inspect http 配置
一、实验拓扑:2、Trunk中继链路接口、DHCP服务器R1接口开启ARP inspection trust
SW1(config)#int range e0/0,e0/2
SW1(config-if-range)#ip arp inspection trust
SW2(config)#int e0/0
SW2(config-if)#ip arp inspection trust
3、修改PC1的MAC地址:
PC1(config)#int e0/0
PC1(config-if)#mac-address aabb.cc00.0201
四、验证:
1、PC1上PingR1:可以Ping通
PC1#ping 100.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 100.1.1.1, timeout is 2 seconds:!!!!!
2、修改PC1的MAC地址后再去Ping R1:失败
PC1#ping 100.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 100.1.1.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
而且SW2还会报错:
SW2(config-if)#
*May 25 10:15:54.306: %SW_DAI-4-DHCP_SNOOPING_DENY: 1 Invalid ARPs (Req) on Et0/1, vlan 10.([aabb.cc00.0201/100.1.1.3/aabb.cc00.0200/100.1.1.1/10:15:54 UTC Fri May 25 2018])
标签:roc 图片 端口 range 服务 ado inspect http 配置
原文地址:http://blog.51cto.com/13856092/2137340