Network requirements – H3C Technologies H3C S7500E Series Switches User Manual
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# Enable DHCP.
[SwitchA] dhcp enable
# Enable the DHCP server on VLAN-interface 2.
[SwitchA] interface vlan-interface 2
[SwitchA-Vlan-interface2] dhcp select server global-pool
[SwitchA-Vlan-interface2] quit
# Create DHCP address pool 0, configure a static binding, DNS server and gateway in it.
[SwitchA] dhcp server ip-pool 0
[SwitchA-dhcp-pool-0] static-bind ip-address 10.1.1.5
[SwitchA-dhcp-pool-0] static-bind client-identifier
3030-3066-2e65-3234-392e-3830-3530-2d56-6c61-6e2d-696e-7465-7266-6163-6532
[SwitchA-dhcp-pool-0] dns-list 10.1.1.2
[SwitchA-dhcp-pool-0] gateway-list 10.1.1.126
[SwitchA-dhcp-pool-0] quit
# Create DHCP address pool 1, configure a static binding, DNS server and gateway in it.
[SwitchA] dhcp server ip-pool 1
[SwitchA-dhcp-pool-1] static-bind ip-address 10.1.1.6
[SwitchA-dhcp-pool-1] static-bind mac-address 000f-e249-8050
[SwitchA-dhcp-pool-1] dns-list 10.1.1.2
[SwitchA-dhcp-pool-1] gateway-list 10.1.1.126
3) Verification
After the preceding configuration is complete, Switch B can obtain IP address 10.1.1.5 and other
network parameters, and Switch C can obtain IP address 10.1.1.6 and other network parameters from
Switch A. You can use the display dhcp server ip-in-use command on the DHCP server to view the
IP addresses assigned to the clients.
Dynamic IP Address Assignment Configuration Example
Network requirements
z
As shown in
, the DHCP server (Switch A) assigns IP addresses 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-interfaces 1 and 2 on Switch A are 10.1.1.1/25 and 10.1.1.129/25
respectively.
z
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.
z
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.
z
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.