HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Services Conf - Page 22

Proxy ARP configuration examples, Network requirements, Configuration procedure

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Task Command Remarks Display whether common 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 Common proxy ARP configuration example Network requirements As shown in Figure 8, 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 by the switch (Host A belongs to VLAN 1 while 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 switch to enable communication between the two hosts. Figure 8 Network diagram Configuration procedure # Create VLAN 2. system-view [Switch] vlan 2 [Switch-vlan2] quit # 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 14

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14
Task
Command
Remarks
Display whether common 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
Common proxy ARP configuration example
Network requirements
As shown in
Figure 8
, 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 by the switch (Host A belongs to VLAN 1 while 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 switch to enable communication between the two hosts.
Figure 8
Network diagram
Configuration procedure
# Create VLAN 2.
<Switch> system-view
[Switch] vlan 2
[Switch-vlan2] quit
# 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