H3C Technologies H3C SecPath F1000-E - Manual (Page 19)

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[Switch-vlan5] quit
[Switch] isolate-user-vlan 5 secondary 2 3
Step2 Configure the device
# Specify the IP address of GigabitEthernet 0/2.
system-view
[Device] interface gigabitethernet 0/2
[Device-GigabitEthernet0/2] ip address 192.168.10.100 255.255.0.0
The ping operation from Host A to Host B is unsuccessful because they are isolated at Layer 2.
# Configure local proxy ARP to implement Layer 3 communication between VLAN 2 and VLAN 3.
[Device-GigabitEthernet0/2] local-proxy-arp enable
The ping operation from Host A to Host B is successful after the configuration.