Dhcp Server Configuration Task List - H3C S3610-28P Operation Manual

Operation Manual – DHCP
H3C S3610&S5510 Series Ethernet Switches
For example, two address pools are configured on the DHCP server. The ranges of IP
addresses that can be dynamically assigned are 1.1.1.0/24 and 1.1.1.0/25 respectively.
If the IP address of the interface receiving DHCP requests is 1.1.1.1/25, the DHCP
server will select IP addresses for clients from the 1.1.1.0/25 address pool. If no IP
address is available in the 1.1.1.0/25 address pool, the DHCP server will fail to assign
addresses to clients. If the IP address of the interface receiving DHCP requests is
1.1.1.130/25, the DHCP server will select IP addresses for clients from the 1.1.1.0/24
address pool.
Note:
Keep the IP addresses for dynamic allocation within the subnet where the interface of
the DHCP server resides to avoid wrong IP address allocation.
2.1.3 IP Address Allocation Sequence
A DHCP server assigns an IP address to a client according to the following sequence:
1) The IP address manually bound to the client's MAC address or ID
2) The IP address that was ever assigned to the client
3) The IP address designated by the Option 50 field in a DHCP-DISCOVER
message
4) The first assignable IP address found in a proper DHCP address pool
5) The IP address that was a conflict or passed its lease duration
If no IP address is assignable, the server will not respond.

2.2 DHCP Server Configuration Task List

Complete the following tasks to configure the DHCP server:
Enabling DHCP
Enabling the DHCP Server on an Interface
Configuring an Address Pool for the DHCP Server
Configuring the DHCP Server Security Functions
Configuring the Handling Mode for Option 82
2.3 Enabling DHCP
Enable DHCP before performing other configurations.
Task
2-3
Chapter 2 DHCP Server Configuration
Remarks
Required
Optional
Required
Optional
Optional