H3C Technologies H3C S10500 Series Switches - Manual (Page 33)

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[SwtichA-vlan5] port GigabitEthernet 1/0/2
[SwitchA-vlan5] quit
[SwtichA] interface vlan-interface 5
[SwtichA-Vlan-interface5] ip address 192.168.10.100 255.255.0.0
From Host A, ping Host B. The ping operation is unsuccessful because they are isolated at Layer 2.
# Configure local proxy ARP to implement Layer 3 communication between Host A and Host B.
[SwtichA-Vlan-interface5] local-proxy-arp enable
From Host A, ping Host B. The ping operation is successful after the configuration.