Primary And Secondary Subnets Configuration Example - HP FlexNetwork MSR2003 Configuration Manual

<RouterA> system-view
[RouterA] dhcp enable
# Enable DHCP server on interface GigabitEthernet 2/0/1.
[RouterA] interface gigabitethernet 2/0/1
[RouterA-GigabitEthernet2/0/1] dhcp select server
[RouterA-GigabitEthernet2/0/1] quit
# Create DHCP user class ss and configure a match rule to match DHCP requests in which the
hardware address is six bytes long and begins with aabb-aabb.
[RouterA] dhcp class ss
[RouterA-dhcp-class-ss] if-match rule 1 hardware-address aabb-aabb-0000 mask
ffff-ffff-0000
[RouterA-dhcp-class-ss] quit
# Create DHCP address pool aa.
[RouterA] dhcp server ip-pool aa
# Specify the subnet for dynamic allocation.
[RouterA-dhcp-pool-aa] network 10.1.1.0 mask 255.255.255.0
# Enable DHCP user class whitelist.
[RouterA-dhcp-pool-aa] verify class
# Add DHCP user class ss to the DHCP user class whitelist.
[RouterA-dhcp-pool-aa] valid class ss
Verifying the configuration
# Verify that clients matching the DHCP user class can obtain IP addresses on subnet 10.1.1.0/24
from the DHCP server. (Details not shown.)
# On the DHCP server, display the IP addresses assigned to the clients.
[RouterA] display dhcp server ip-in-use

Primary and secondary subnets configuration example

Network requirements
As shown in
LAN.
Configure two subnets in the address pool on the DHCP server: 10.1.1.0/24 as the primary subnet
and 10.1.2.0/24 as the secondary subnet. The DHCP server selects an IP address from the
secondary subnet when the primary subnet has no assignable addresses.
Router A assigns the following parameters:
•
The default gateway 10.1.1.254/24 to clients on subnet 10.1.1.0/24.
•
The default gateway 10.1.2.254/24 to clients on subnet 10.1.2.0/24.
Figure 28, the DHCP server (Router A) assigns IP addresses to DHCP clients in the
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