Enterasys Networks Security Router X-PeditionTM - Manual (Page 383)

DHCP Set Up Overview
XSR User’s Guide 15-9
addresses are offered to the client. Show ip dhcp server statistics is a useful catch-all
command. Show ip local pool shows a list of active IP local pools, excluded and in use IP
addresses.
DHCP Set Up Overview
Configuring DHCP Address Pools
The DHCP Server is configured by performing the following:
• Allocate one or more address pools for DHCP clients. These pools can specify addresses on
the local subnets of the router or external subnets whose clients reach the DHCP Server using
BOOTP Relay.
• Exclude any addresses from these pools which must restricted and map to the DHCP pool.
• For each pool, define the set of DHCP network configuration values to be supplied to clients.
• Add manual (static) bindings to the DHCP pool configuration.
• Enable the DHCP Server on a FastEthernet interface only.
Configuring DHCP - Network Configuration Parameters
The DHCP Server can supply network configuration parameters; e.g., the IP address of the DNS
Server to its clients.
A DHCP client may require a large set of configuration parameters. Likewise, a network may
contain a variety of different client types, each needing a different (possibly unique) set of
network parameters.
The XSR’s DHCP setup is minimized for elaborate configuration by the use of scopes.
Configuration Steps
Only four steps are required to minimally configure DHCP Server. They are:
• Create an IP Local Client Pool
• Create a Corresponding DHCP Pool
• Configure DHCP Network Parameters
• Enable the DHCP Server
Optionally, you can also:
• Set up a DHCP Nested Scope
• Configure a DHCP Manual Binding
These steps are described in the following sections.
Create an IP Local Client Pool
Begin DHCP configuration by specifying a pool of IP addresses for clients on a local or remote
subnet (set via BOOTP Relay Agent). For this example, the local interface is assigned IP address
1.1.1.2 255.255.255.0.