3Com E4500-24 Cli Configuration Manual page 422

1 DHCP Overview··········································································································································1-1
Introduction to DHCP ······························································································································1-1
DHCP IP Address Assignment ···············································································································1-1
IP Address Assignment Policy ········································································································1-1
Obtaining IP Addresses Dynamically ······························································································1-2
Updating IP Address Lease·············································································································1-2
DHCP Packet Format······························································································································1-3
Protocol Specification······························································································································1-4
2 DHCP Server Configuration······················································································································2-1
Introduction to DHCP Server ··················································································································2-1
Usage of DHCP Server ···················································································································2-1
DHCP Address Pool ························································································································2-1
DHCP IP Address Preferences ·······································································································2-3
XRN Support ···································································································································2-3
DHCP Server Configuration Task List ····································································································2-4
Enabling DHCP ·······································································································································2-4
Configuring the Global Address Pool Based DHCP Server····································································2-5
Configuration Task List····················································································································2-5
Enabling the Global Address Pool Mode on Interface(s) ································································2-5
Creating a DHCP Global Address Pool···························································································2-6
Configuring an Address Allocation Mode for the Global Address Pool···········································2-6
Configuring a Domain Name Suffix for the DHCP Client ································································2-9
Configuring DNS Servers for the DHCP Client ···············································································2-9
Configuring WINS Servers for the DHCP Client············································································2-10
Configuring Gateways for the DHCP Client ··················································································2-11
Configuring BIMS Server Information for the DHCP Client···························································2-11
Configuring Option 184 Parameters for the Client with Voice Service··········································2-11
Configuring the TFTP Server and Bootfile Name for the DHCP Client·········································2-14
Configuring a Self-Defined DHCP Option ·····················································································2-14
Configuring the Interface Address Pool Based DHCP Server ······························································2-15
Configuration Task List··················································································································2-15
Enabling the Interface Address Pool Mode on Interface(s)···························································2-16
Configuring an Address Allocation Mode for an Interface Address Pool ······································2-17
Configuring a Domain Name Suffix for the DHCP Client ······························································2-19
Configuring DNS Servers for the DHCP Client ·············································································2-19
Configuring WINS Servers for the DHCP Client············································································2-20
Configuring BIMS Server Information for the DHCP Client···························································2-21
Configuring Option 184 Parameters for the Client with Voice Service··········································2-21
Configuring the TFTP Server and Bootfile Name for the DHCP Client·········································2-22
Configuring a Self-Defined DHCP Option ·····················································································2-23
Configuring DHCP Server Security Functions ······················································································2-24
Prerequisites··································································································································2-24
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