Enabling The Dhcp Server On An Interface - H3C S7500E Series Operation Manual

Operation Manual – DHCP
H3C S7500E Series Ethernet Switches
Follow these steps to enable DHCP:
To do...
Enter system view
Enable DHCP

2.4 Enabling the DHCP Server on an Interface

With the DHCP server enabled on an interface, upon receiving a client's request, the
DHCP server will assign an IP address from its address pool to the DHCP client.
Follow these steps to enable the DHCP server on an interface:
Enter system view
Enter interface view
Enable the DHCP server
on an interface
Note:
The subaddress keyword is valid only when the server and client are on the same
subnet. If a DHCP relay agent exists in between, regardless of subaddress, the DHCP
server will select an IP address from the address pool of the subnet which contains the
primary IP address of the DHCP relay agent's interface (connected to the client).
When the DHCP server and client are on the same subnet, the server will:
With subaddress specified, assign an IP address from the address pool of the
subnet which the secondary IP address of the server's interface connected to the
client belongs to, or assign from the first secondary IP address if several secondary
IP addresses exist. If no secondary IP address is configured for the interface, the
server is unable to assign an IP address to the client.
Without subaddress specified, assign an IP address from the address pool of the
subnet which the primary IP address of the server's interface (connected to the
client) belongs to.
Use the command...
system-view
dhcp enable
To do...
system-view
interface interface-type
interface-number
dhcp select server
global-pool
[ subaddress ]
Chapter 2 DHCP Server Configuration
Use the command...
2-4
Remarks
—
Required
Disabled by default.
Remarks
—
—
Optional
Enabled by default.