在使用源IP和MAC地址过滤的时候必须启用dhcp snooping option 82.因为没有option 82的数据,交换机就不能确定客户端主机的端口,dhcp offer将被丢弃,客户就不能获得地址.命令 ip verify source vlan dhcp-snooping port-security以源IP和MAC地址过滤方式启动IPSG.交换机使用 port security来过滤源MAC地址. ...
L25W (config)#ip dhcp snoopingL2SW (config)#intece rang FastEthernet 0/1-24L2SW (config-if)#ip verify source port-security B. L2SW (config)#ip dhcp snoopingL2SW (config)#intece rang GigabitEthernet 0/1-24L2SW (config-if)#ip dhcp snooping untrust C. L2SW (config)#ip dhep...
port-security 2-105 clear spanning-tree counters 2-107 clear spanning-tree detected-protocols 2-108 clear vmps statistics 2-109 clear vtp counters 2-110 cluster commander-address 2-111 cluster discovery hop-count 2-113 cluster enable 2-114 cluster holdtime 2-116 cluster member 2-117 cluster ...