H3C Technologies H3C S5560 Series Switches - Manual (Page 29)

14
Configuring 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 in different broadcast domains can communicate with each other as they
do in 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
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
The following interface types are
supported:
• VLAN interface.
• Layer 3 Ethernet interface.
• Layer 3 aggregate interface.
3. Enable common proxy ARP. proxy-arp enable
By default, common proxy ARP is
disabled.
Enabling local proxy ARP
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
The following interface types are
supported:
• VLAN interface.
• Layer 3 Ethernet interface.
• Layer 3 aggregate interface.
3. Enable local proxy ARP.
local-proxy-arp enable
[ ip-range startIP to endIP ]
By default, local proxy ARP is
disabled.
Displaying proxy ARP
Execute display commands in any view.