Dhcp Overview; Dhcp Server Configuration - 3Com 4500 PWR 26-Port Configuration Manual

ARP Attack Defense Configuration Task List................................................................................ 37-4
Configuring the Maximum Number of Dynamic ARP Entries that a VLAN Interface Can Learn .. 37-5
Configuring ARP Source MAC Address Consistency Check ........................................................ 37-5
ARP Packet Filtering Based on Gateway's Address..................................................................... 37-5
Configuring ARP Attack Detection ................................................................................................ 37-6
Configuring the ARP Packet Rate Limit Function ......................................................................... 37-7
ARP Attack Defense Configuration Example........................................................................................ 37-8
ARP Attack Defense Configuration Example I .............................................................................. 37-8
ARP Attack Defense Configuration Example II ........................................................................... 37-10
ARP Attack Defense Configuration Example III .......................................................................... 37-11
ARP Attack Defense Configuration Example IV.......................................................................... 37-11> 38 DHCP Overview ...................................................................................................................................... 38-1 Introduction to DHCP ............................................................................................................................ 38-1 DHCP IP Address Assignment ............................................................................................................. 38-1 IP Address Assignment Policy ...................................................................................................... 38-1 Obtaining IP Addresses Dynamically ............................................................................................ 38-2 Updating IP Address Lease........................................................................................................... 38-2 DHCP Packet Format............................................................................................................................ 38-3 Protocol Specification............................................................................................................................ 38-4 39 DHCP Server Configuration .................................................................................................................. 39-1 Introduction to DHCP Server ................................................................................................................ 39-1 Usage of DHCP Server ................................................................................................................. 39-1 DHCP Address Pool ...................................................................................................................... 39-1 DHCP IP Address Preferences ..................................................................................................... 39-3 XRN Support ................................................................................................................................. 39-3 DHCP Server Configuration Task List .................................................................................................. 39-4 Enabling DHCP ..................................................................................................................................... 39-4 Configuring the Global Address Pool Based DHCP Server.................................................................. 39-5 Configuration Task List.................................................................................................................. 39-5 Enabling the Global Address Pool Mode on Interface(s) .............................................................. 39-5 Creating a DHCP Global Address Pool......................................................................................... 39-6 Configuring an Address Allocation Mode for the Global Address Pool......................................... 39-6 Configuring a Domain Name Suffix for the DHCP Client .............................................................. 39-9 Configuring DNS Servers for the DHCP Client ............................................................................. 39-9 Configuring WINS Servers for the DHCP Client ......................................................................... 39-10 Configuring Gateways for the DHCP Client ................................................................................ 39-11 Configuring BIMS Server Information for the DHCP Client......................................................... 39-11 Configuring Option 184 Parameters for the Client with Voice Service........................................ 39-11 Configuring the TFTP Server and Bootfile Name for the DHCP Client....................................... 39-14 Configuring a Self-Defined DHCP Option ................................................................................... 39-14 Configuring the Interface Address Pool Based DHCP Server ............................................................ 39-15 Configuration Task List................................................................................................................ 39-15 Enabling the Interface Address Pool Mode on Interface(s)......................................................... 39-16 Configuring an Address Allocation Mode for an Interface Address Pool .................................... 39-17 Configuring a Domain Name Suffix for the DHCP Client ............................................................ 39-19 Configuring DNS Servers for the DHCP Client ........................................................................... 39-19 Configuring WINS Servers for the DHCP Client ......................................................................... 39-20 xiii
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