Cisco Catalyst 2960-XR User Manual

CHAPTER 12
Configuring DHCP
•
Finding Feature Information, page 165
•
Information About DHCP, page 165
•
How to Configure DHCP Features, page 172
•
Configuring DHCP Server Port-Based Address Allocation, page 181
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest feature
information and caveats, see the release notes for your platform and software release.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support.
To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not
required.
Information About DHCP
DHCP Server
The DHCP server assigns IP addresses from specified address pools on a switch or router to DHCP clients
and manages them. If the DHCP server cannot give the DHCP client the requested configuration parameters
from its database, it forwards the request to one or more secondary DHCP servers defined by the network
administrator.
The switch can act as a DHCP server.
DHCP Relay Agent
A DHCP relay agent is a Layer 3 device that forwards DHCP packets between clients and servers. Relay
agents forward requests and replies between clients and servers when they are not on the same physical subnet.
Relay agent forwarding is different from the normal Layer 2 forwarding, in which IP datagrams are switched
Catalyst 2960-XR Switch Security Configuration Guide, Cisco IOS Release 15.0(2)EX1
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Cisco Catalyst 2960-XR Specifications

General

Brand	Cisco
Model	Catalyst 2960-XR
Category	Switch
Language	English