Maipu Administration Guide

Configure ARP Proxy

Network Requirements

Device is directly connected to PC1 and PC2 respectively. The network number of the LAN in which PC1 and PC2 is located is 10.0.0.0/16.
The MAC address of the interface VLAN2 of Device is 0001.7a13.0102.
Through the ARP proxy of Device, PC1 can successfully ping PC2, and PC1 can learn the MAC address of PC2.

Network Topology

Networking for Configuring ARP Proxy

Figure 1-1 Networking for Configuring ARP Proxy

Configuration Steps

Step 1: Create VLANs, and add ports to the required VLANs.(Omitted)

Step 2: Configure IP addresses for the ports. (Omitted)

Step 3: Check the result.

#Ping the PC2 IP address 10.0.1.2 from PC1.

C:\Documents and Settings>ping 10.0.1.2

Pinging 10.0.1.2 with 32 bytes of data:

Reply from 10.0.1.2: bytes=32 time<1ms TTL=255
Reply from 10.0.1.2: bytes=32 time<1ms TTL=255
Reply from 10.0.1.2: bytes=32 time<1ms TTL=255
Reply from 10.0.1.2: bytes=32 time<1ms TTL=255

Ping statistics for 10.0.1.2:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 0ms, Average = 0ms

#Query the ARP entry of Device.

Device#show arp  
Protocol  Address  Age (min) Hardware Addr  Type  Interface  Swithport
Internet 10.0.0.1   -        0001.7a13.0102 ARPA  vlan2 	 ------------------                
Internet 10.0.0.2   1        B8AC.6F2D.4498 ARPA  vlan2      gigabitethernet0/1
Internet 10.0.1.1   -        0001.7a13.0103 ARPA  vlan3 	 ------------------                
Internet 10.0.1.2   1	     4437.e603.0d63 ARPA  vlan3      gigabitethernet0/2

#Query the ARP entry of PC1.

C:\Documents and Settings>arp a 
Interface: 10.0.0.2	0x5 
  Internet Address     Physical Address     Type 
  10.0.0.1             00-01-7a-13-01-02    dynamic 
  10.0.1.2             00-01-7a-13-01-02    dynamic

#Ping from PC1 to PC2 is successful. The PC1 has learned the MAC address of PC2.

By default, ARP proxy is enabled for a device.