User`s guide

XSR User’s Guide 305

Chapter 12 Configuration Steps

Configuring DHCP

Configuration Steps

Only four steps are required to minimally configure DHCP. 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.

Add global pool local_clients including the starting IP address of the

range and addresses that are unreachable to network clients:

XSR(config)#ip local pool local_clients 1.1.1.0/24

XSR(ip-local-pool)#exclude 1.1.1.249 6

Create a Corresponding DHCP Pool

2 Map this local pool to a DHCP pool by specifying the correct name:

XSR(config)#ip dhcp pool local_clients

Configure DHCP Network Parameters

3 On the pool just supplied to DHCP, define some attributes for network

clients. They include the lease duration (dynamic leases) of two hours

and 30 minutes, IP addresses of the default router and DNS server

(these IP addresses derive from the excluded address range on the

IP local pool), and the

Enterasys.com domain name.

XSR(config-dhcp-pool)#lease 0 2 30

XSR(config-dhcp-pool)#default-router 1.1.1.249 1.1.1.250

XSR(config-dhcp-pool)#dns-server 1.1.1.254