对LSW3：

Interface vlanif 10

Undo ip address(删除ip地址)

quit

Interface vlanif 20

Undo ip address

quit

Interface GigabitEthernet 0/0/24

Port link-type trunk

Port trunk allow-pass vlan 10 20

对路由器R：

Interface GigabitEthernet 0/0/0.10

Dot1q termination vid 10

Ip address 192.168.10.254 24

Arp broadcast enable

Interface GigabitEthernet 0/0/0.20

Dot1q termination vid 20

Ip address 192.168.20.254 24

Arp broadcast enable

 

 

注：display cu(查看配置)

    Display ip interface brief(查看配置)