Interface Address Pool-Based Dhcp Server Configuration; Configuration Overview - H3C S3600 Series Operation Manual

Operation Manual – DHCP
H3C S3600 Series Ethernet Switches-Release 1510
2.3 Interface Address Pool-based DHCP Server
Configuration
Caution:
In the interface address pool mode, after the addresses in the interface address pool
have been assigned, the DHCP server picks IP addresses from the global interface
address pool containing the segment of the interface address pool and assigns them to
the DHCP clients. As a result, the IP addresses obtained from global address pools and
those obtained from interface address pools are not in the same network segment, so
the clients cannot interoperate with each other.
Therefore, in the interface address pool mode, if the IP addresses in the same address
pool are required to be assigned to the clients on the same VLAN interface, the number
of clients that obtain IP addresses automatically cannot exceed the number of the IP
addresses that can be assigned in the interface address pool.

2.3.1 Configuration Overview

An interface address pool is created when the interface is assigned a valid unicast IP
address and you execute the dhcp select interface command in interface view. The IP
addresses contained in it belong to the network segment where the interface resides in
and are available to the interface only.
You can perform certain configurations for DHCP address pools of an interface or
multiple interfaces within specified interface ranges. Configuring for multiple interfaces
eases configuration work load and makes you to configure in a more convenient way.
Table 2-11 Overview of interface address pool-based DHCP server configuration
Enable DHCP
Configure to assign the IP addresses
of the local interface-based address
pools to DHCP clients
Configuration task
Chapter 2 DHCP Server Configuration
Description
Required
Required
2-13
Related section
2.3.2 "Enabling DHCP"
2.3.3 "Configuring
Assign the IP Addresses of
Interface Address Pools to
DHCP Clients"
to