Address interface address pool is divided into pools and the global address pool two kinds.
Simple interface address pool configuration, the user can only be used with a DHCP server in a network of the same scene, and can only be assigned an IP address and other network parameters corresponding to the user interfaces; maintenance applies to a limited number of devices, and a configuration control of small networks. After configuring the DHCP server function based on the interface address pool on a user gateway device corresponding to the fixed host, so the mobile terminal interface may automatically obtain an IP address and other network parameters, the user does not require manual configuration changes.
Compared with interface address pools, the global address pool for large networks, the recommended configuration DHCP server based on the global address pool on the core layer to build a dedicated device or a DHCP server in the IP address area of uniform distribution network parameters, the user need only gateway device to enable a simple DHCP relay function.
The first step requires the switch to open the DHCP service.
