Dhcp User Class Configuration Example - HP FlexNetwork MSR2003 Configuration Manual

[RouterA-dhcp-pool-2] dns-list 10.1.1.2
[RouterA-dhcp-pool-2] gateway-list 10.1.1.254
Verifying the configuration
# Verify that clients on subnets 10.1.1.0/25 and 10.1.1.128/25 can obtain correct IP addresses and
all other network parameters from Router A. (Details not shown.)
# On the DHCP server, display the IP addresses assigned to the clients.
[RouterA] display dhcp server ip-in-use

DHCP user class configuration example

Network requirements
As shown in
clients and the DHCP server (Router B). Enable Router A to handle Option 82 so that it can add
Option 82 in DHCP requests and then convey them to the DHCP server.
Configure the address allocation scheme as follows:
Assign IP addresses
10.10.1.2 to 10.10.1.10
10.10.1.11 to 10.10.1.26
Router B assigns the DNS server address 10.10.1.20/24 and the gateway address 10.10.1.254/24 to
clients on subnet 10.10.1.0/24.
Figure 26 Network diagram
Configuration procedure
1. Specify IP addresses for the interfaces on DHCP server. (Details not shown.)
2. Configure DHCP:
# Enable DHCP and configure the DHCP server to handle Option 82.
<RouterB> system-view
[RouterB] dhcp enable
[RouterB] dhcp server relay information enable
# Enable the DHCP server on the interface GigabitEthernet 2/0/1.
[RouterB] interface gigabitethernet 2/0/1
[RouterB-GigabitEthernet2/0/1] dhcp select server
Figure 26, the DHCP relay agent (Router A) forwards DHCP packets between DHCP
To clients
The DHCP request contains Option 82.
The hardware address in the request is six bytes long and
begins with aabb-aabb-aab.
60