H3C Technologies H3C S12500 Series Switches - Manual (Page 29)

15
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view. interface interface-type interface-number N/A
3. Enable local proxy ARP.
local-proxy-arp enable [ ip-range startIP to
endIP ]
Disabled by default.
Displaying and maintaining proxy ARP
Task Command Remarks
Display whether proxy ARP is
enabled.
display proxy-arp [ interface interface-type
interface-number ] [ | { begin | exclude |
include } regular-expression ]
Available in any view.
Display whether local proxy ARP is
enabled.
display local-proxy-arp [ interface
interface-type interface-number ] [ | { begin
| exclude | include } regular-expression ]
Available in any view.
Proxy ARP configuration examples
IMPORTANT:
By default, Ethernet, VLAN, and aggregate interfaces are down. To configure such an interface, bring the
interface up by executing the undo shutdown command.
Common proxy ARP configuration example
Network requirements
As shown in Figure 7 , Host A and Host D have the same IP prefix and mask (IP addresses of Host A and
Host D are 192.168.10.100/16 and 192.168.20.200/16 respectively), but are located on different
subnets (Host A belongs to VLAN 1 and Host D belongs to VLAN 2). As a result, Host D cannot receive
or respond to any ARP request from Host A.
You must configure proxy ARP on the router to enable communication between Host A and Host D.