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3com S7906E Manuel De Montage

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To do… 
Use the command… 
Remarks 
Enter system view 
system-view 
— 
Enter interface view 
interface interface-type 
interface-number 
Required 
Enable local proxy ARP 
local-proxy-arp enable 
[ ip-range startIP to endIP ] 
Required 
Disabled by default. 
 
Displaying and Maintaining Proxy ARP 
To do… 
Use the command… 
Remarks 
Display whether proxy ARP is 
enabled 
display proxy-arp [ interface 
interface-type interface-number ] 
Available in any view 
Display whether local proxy 
ARP is enabled 
display local-proxy-arp [ interface 
interface-type interface-number ] 
Available in any view 
 
Proxy ARP Configuration Examples 
Proxy ARP Configuration Example 
Network requirements 
As shown in 
, 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 they are located on 
different subnets separated through the switch (Host A belongs to VLAN 1 while Host D belongs to 
VLAN 2).  
As no default gateway is configured for Host A and Host D, you need to configure proxy ARP on the 
switch to enable the communication between the two hosts. 
Figure 2-3 Network diagram for proxy ARP