Configuration Example (On A Dhcp Relay Agent) - HP MSR2000 Configuration Manual

[RouterB-Ethernet1/1] ip address dhcp-alloc
[RouterB-Ethernet1/1] quit
3. After Router B obtains an IP address from Router A, display the authorized ARP entry information
on Router A.
[RouterA] display arp all
IP Address
10.1.1.2
The output shows that IP address 10.1.1.2 has been assigned to Router B.
Router B must use the IP address and MAC address in the authorized ARP entry to communicate
with Router A. Otherwise, the communication fails. Thus user validity is ensured.

Configuration example (on a DHCP relay agent)

Network requirements
Configure authorized ARP on Ethernet 1/2 of Router B (a DHCP relay agent) to ensure user validity.
Figure 80 Network diagram
Configuration procedure
1. Configure Router A:
# Specify the IP address for Ethernet 1/1.
<RouterA> system-view
[RouterA] interface ethernet 1/1
[RouterA-Ethernet1/1] ip address 10.1.1.1 24
[RouterA-Ethernet1/1] quit
# Configure DHCP.
[RouterA] dhcp enable
[RouterA] dhcp server ip-pool 1
[RouterA-dhcp-pool-1] network 10.10.1.0 mask 255.255.255.0
[RouterA-dhcp-pool-1] gateway-list 10.10.1.1
[RouterA-dhcp-pool-1] quit
[RouterA] ip route-static 10.10.1.0 24 10.1.1.2
2. Configure Router B:
# Enable DHCP.
Type: S-Static D-Dynamic
MAC Address VLAN
0012-3f86-e94c N/A
280
M-Multiport
Interface
Eth1/1
I-Invalid
Aging Type
20 D