Configuring Dhcp Snooping - Cisco 7604 Configuration Manual

Ios software configuration guide

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Configuring DHCP Snooping

This chapter describes how to configure Dynamic Host Configuration Protocol (DHCP) snooping on

Cisco 7600 series routers.

This chapter consists of the following major sections:

For additional information (including configuration examples and troubleshooting information), see the

documents listed on this page:

http://www.cisco.com/en/US/products/hw/routers/ps368/tsd_products_support_series_home.html

Understanding DHCP Snooping

These sections describe the DHCP snooping feature:

The DHCP snooping feature requires PFC3 and Release 12.2(18)SXE and later releases. The PFC2

does not support DHCP snooping.

For complete syntax and usage information for the commands used in this chapter, refer to the Cisco

IOS Master Command List, Release 12.2SX at this URL:

http://www.cisco.com/en/US/docs/ios/mcl/122sxmcl/12_2sx_mcl_book.html

Understanding DHCP Snooping, page 37-1

Default Configuration for DHCP Snooping, page 37-6

DHCP Snooping Configuration Restrictions and Guidelines, page 37-7

Configuring DHCP Snooping, page 37-9

Overview of DHCP Snooping, page 37-2

Trusted and Untrusted Sources, page 37-2

DHCP Snooping Binding Database, page 37-2

Packet Validation, page 37-3

DHCP Snooping Option-82 Data Insertion, page 37-3

Overview of the DHCP Snooping Database Agent, page 37-5

Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX

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