Dell PowerConnect 5548 User Guide - Page 290

DHCP Server The switch can operate as either: • DHCP client that obtains its own IP from a DHCP server, as described in "DHCP IPv4 Interface" on page 207 • DHCP server that allocates IP addresses to other devices, as described in this section This section contains the following topics: • DHCP Server Overview • DHCP Server Properties • Network Pool • Excluded Addresses • Static Hosts • Address Binding DHCP Server Overview A DHCP server uses a defined pool of IP addresses (user-defined) from which it allocates IP addresses to DHCP clients. The DHCP server can allocate IP addresses in the following modes: • Static Allocation - The hardware address of a host is manually mapped to an IP address. • Permanent Allocation - An IP address sent to the client through a standard request-reply mechanism, is owned by that client permanently (unless changes in the network environment/connections take place, for any reason). • Dynamic Allocation - A client obtains a leased IP address for a specified period of time. The IP address is revoked at the end of this period, and the client must request another IP address. 290 Dell PowerConnect 55xx Systems User Guide