Configuration procedure – H3C Technologies H3C S10500 Series Switches User Manual
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The IP addresses of VLAN-interfaces 1 and 2 on Switch A are 10.1.1.1/25 and 10.1.1.129/25
respectively.
•
In address pool 10.1.1.0/25, configure the address lease duration as ten days and twelve hours,
domain name suffix aabbcc.com, DNS server address 10.1.1.2/25, gateway 10.1.1.126/25, and
WINS server 10.1.1.4/25.
•
In address pool 10.1.1.128/25, configure the address lease duration as five days, domain name
suffix aabbcc.com, DNS server address 10.1.1.2/25, and gateway address 10.1.1.254/25, and
there is no WINS server address.
•
The domain name and DNS server address on subnets 10.1.1.0/25 and 10.1.1.128/25 are the same.
Therefore, the domain name suffix and DNS server address can be configured only for subnet
10.1.1.0/24. Subnet 10.1.1.128/25 can inherit the configuration of subnet 10.1.1.0/24.
Figure 27 DHCP network diagram
Configuration procedure
1.
Specify IP addresses for VLAN interfaces (details not shown).
2.
Configure the DHCP server
# Enable DHCP.
[SwitchA] dhcp enable
# Enable the DHCP server on VLAN-interface 1 and VLAN-interface 2.
[SwitchA] interface vlan-interface 1
[SwitchA-Vlan-interface1] dhcp select server global-pool
[SwitchA-Vlan-interface1] quit
[SwitchA] interface vlan-interface 2
[SwitchA-Vlan-interface2] dhcp select server global-pool
[SwitchA-Vlan-interface2] quit
# Exclude IP addresses (addresses of the DNS server, WINS server and gateways).
[SwitchA] dhcp server forbidden-ip 10.1.1.2
[SwitchA] dhcp server forbidden-ip 10.1.1.4
[SwitchA] dhcp server forbidden-ip 10.1.1.126
[SwitchA] dhcp server forbidden-ip 10.1.1.254
# Configure DHCP address pool 0 (subnet, client domain name suffix, and DNS server address).
[SwitchA] dhcp server ip-pool 0
[SwitchA-dhcp-pool-0] network 10.1.1.0 mask 255.255.255.0