创建vlan ，配置IP
vlan10
quit
interfaces vlan-interface 10
ip address 10.0.0.1 255.255.255.0
ARP代理功能的开启
local-proxy-arp enable
创建vlan ，添加端口（以GigabitEthernet1/0/1和GigabEthernet1/0/2举例)
vlan 20
port gigabitethernet 1/0/1 gigabitethernet 1/0/2
指定vlan 为super vlan
vlan 10
supervlan
sbpervlan 20
quit