H3C Technologies H3C S3100 Series Switches - Manual (Page 527)

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DHCP Server Configuration Examples
Currently, DHCP networking can be implemented in two ways. One is to deploy the DHCP server and
DHCP clients in the same network segment. This enables the clients to communicate with the server
directly. The other is to deploy the DHCP server and DHCP clients in different network segments. In this
case, IP address assigning is carried out through DHCP relay agent. Note that DHCP server
configuration is the same in both scenarios.
DHCP Server Configuration Example
Network requirements
z The DHCP server (Switch A) assigns IP address to clients in subnet 10.1.1.0/24, which is
subnetted into 10.1.1.0/25 and 10.1.1.128/25.
z The IP addresses of VLAN-interface 1 and VLAN-interface 2 on Switch A are 10.1.1.1/25 and
10.1.1.129/25 respectively.
z In the address pool 10.1.1.0/25, the address lease duration is ten days and twelve hours, domain
name suffix aabbcc.com, DNS server address 10.1.1.2, gateway 10.1.1.126, and WINS server
10.1.1.4.
z In the address pool 10.1.1.128/25, the address lease duration is five days, domain name suffix
aabbcc.com, DNS server address 10.1.1.2, and gateway address 10.1.1.254, and there is no
WINS server address.