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Configuring proxy ARP
About proxy ARP
Proxy ARP enables a device on one network to answer ARP requests for an IP address on another
network. With proxy ARP, hosts on different broadcast domains can communicate with each other as
they would on the same broadcast domain.
Proxy ARP includes common proxy ARP and local proxy ARP.
• Common proxy ARP—Allows communication between hosts that connect to different Layer 3
interfaces and reside in different broadcast domains.
• Local proxy ARP—Allows communication between hosts that connect to the same Layer 3
interface and reside in different broadcast domains.
Enabling common proxy ARP
1. Enter system view.
system-view
2. Enter interface view.
interface interface-type interface-number
Only VLAN interfaces are supported.
3. Enable common proxy ARP.
proxy-arp enable
By default, common proxy ARP is disabled.
Enabling local proxy ARP
1. Enter system view.
system-view
2. Enter interface view.
interface interface-type interface-number
Only VLAN interfaces are supported.
3. Enable local proxy ARP.
local-proxy-arp enable [ ip-range start-ip-address to end-ip-address ]
By default, local proxy ARP is disabled.
Display and maintenance commands for proxy
ARP
Execute display commands in any view.
Task Command
Display common proxy ARP
status.
display proxy-arp
[
interface
interface-type
interface-number ]
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