Local Proxy Arp Configuration Example In Case Of Port Isolation - HP A5120 EI Series Configuration Manual

# Specify the IP address of interface VLAN-interface 1.
[Switch] interface vlan-interface 1
[Switch-Vlan-interface1] ip address 192.168.10.99 255.255.255.0
# Enable proxy ARP on interface VLAN-interface 1.
[Switch-Vlan-interface1] proxy-arp enable
[Switch-Vlan-interface1] quit
# Specify the IP address of interface VLAN-interface 2.
[Switch] interface vlan-interface 2
[Switch-Vlan-interface2] ip address 192.168.20.99 255.255.255.0
# Enable proxy ARP on interface VLAN-interface 2.
[Switch-Vlan-interface2] proxy-arp enable
Use the ping command to verify the connectivity between Host A and Host D.

Local proxy ARP configuration example in case of port isolation

Network requirements
As shown in
GigabitEthernet 1/0/2 and GigabitEthernet 1/0/3 respectively. Switch B connects to Switch A via
GigabitEthernet 1/0/1.
Configure port isolation on GigabitEthernet 1/0/3 and GigabitEthernet 1/0/2 of Switch B to isolate
Host A from Host B at Layer 2. Enable local proxy ARP on Switch A to allow communication between
Host A and Host B at Layer 3.
Figure 8 Network diagram for local proxy ARP between isolated ports
192.168.10.100/16
Host A
192.168.10.99/16
Configuration procedure
Configure Switch B
1.
# Add GigabitEthernet 1/0/3, GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 to VLAN 2.
Configure port isolation on Host A and Host B.
<SwitchB> system-view
[SwitchB] vlan 2
[SwitchB-vlan2] port gigabitethernet 1/0/1
[SwitchB-vlan2] port gigabitethernet 1/0/2
[SwitchB-vlan2] port gigabitethernet 1/0/3
Figure 8, Host A and Host B belong to the same VLAN, and connect to Switch B via
Switch A
GE1/0/2
VLAN 2
Vlan-int2
GE1/0/1
GE1/0/2
GE1/0/3
Switch B
VLAN 2
port-isolate group
Host B
192.168.10.200/16
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