iTable of Contents1 DHCP Overview··········································································································································1-1Introduction to DHCP ······························································································································1-1DHCP IP Address Assignment ···············································································································1-1IP Address Assignment Policy ········································································································1-1Obtaining IP Addresses Dynamically ······························································································1-2Updating IP Address Lease·············································································································1-2DHCP Packet Format······························································································································1-3Protocol Specification······························································································································1-42 DHCP Server Configuration······················································································································2-1Introduction to DHCP Server ··················································································································2-1Usage of DHCP Server ···················································································································2-1DHCP Address Pool ························································································································2-1DHCP IP Address Preferences ·······································································································2-3DHCP Server Configuration Task List ····································································································2-3Enabling DHCP ·······································································································································2-3Configuring the Global Address Pool Based DHCP Server····································································2-4Configuration Task List····················································································································2-4Enabling the Global Address Pool Mode on Interface(s) ································································2-5Creating a DHCP Global Address Pool···························································································2-5Configuring an Address Allocation Mode for the Global Address Pool···········································2-5Configuring a Domain Name Suffix for the DHCP Client ································································2-8Configuring DNS Servers for the DHCP Client ···············································································2-8Configuring WINS Servers for the DHCP Client··············································································2-9Configuring Gateways for the DHCP Client ··················································································2-10Configuring BIMS Server Information for the DHCP Client···························································2-10Configuring Option 184 Parameters for the Client with Voice Service··········································2-10Configuring a Self-Defined DHCP Option ·····················································································2-13Configuring the Interface Address Pool Based DHCP Server ······························································2-14Configuration Task List··················································································································2-14Enabling the Interface Address Pool Mode on Interface(s)···························································2-15Configuring an Address Allocation Mode for an Interface Address Pool ······································2-16Configuring a Domain Name Suffix for the DHCP Client ······························································2-18Configuring DNS Servers for the DHCP Client ·············································································2-18Configuring WINS Servers for the DHCP Client············································································2-19Configuring BIMS Server Information for the DHCP Client···························································2-20Configuring Option 184 Parameters for the Client with Voice Service··········································2-20Configuring a Self-Defined DHCP Option ·····················································································2-21Configuring DHCP Server Security Functions ······················································································2-22Prerequisites··································································································································2-22Enabling Unauthorized DHCP Server Detection···········································································2-22Configuring IP Address Detecting ·································································································2-23Configuring DHCP Accounting Functions ·····························································································2-23
