3Com 3C13636 Configuration Manual page 393

3Com Router 3000 Ethernet Family
Configuration Guide
8.2 BOOTP Client Configuration.............................................................................................. 8-1
8.2.1 Configuring an Ethernet Interface to Obtain IP Address Using BOOTP................. 8-1
8.3 Displaying and Debugging BOOTP Client Configuration .................................................. 8-1
Chapter 9 DHCP Configuration .................................................................................................... 9-1
9.1 DHCP Overview................................................................................................................. 9-1
9.1.1 Introduction to DHCP .............................................................................................. 9-1
9.1.2 IP address allocation in DHCP................................................................................ 9-1
9.2 DHCP Server ..................................................................................................................... 9-2
9.2.1 Application environment for DHCP server .............................................................. 9-2
9.2.2 Fundamentals of DHCP server ............................................................................... 9-2
9.2.3 Introduction to DHCP Accounting ........................................................................... 9-5
9.2.4 Option 82 Support on the DHCP Server ................................................................. 9-7
9.2.5 BIMS Option Support on the DHCP Server ............................................................ 9-8
9.2.6 Introduction to Option 184....................................................................................... 9-9
9.2.7 DHCP Address Allocation Support of WAN Interfaces ......................................... 9-11
9.3 DHCP Relay..................................................................................................................... 9-12
9.3.1 Principle of DHCP Relay ....................................................................................... 9-13
9.3.2 Option 82 Support on the DHCP Relay ................................................................ 9-13
9.4 DHCP Common Configuration......................................................................................... 9-15
9.4.1 Enabling/Disabling DHCP ..................................................................................... 9-15
9.4.2 Configuring Pseudo-DHCP Server Detection ....................................................... 9-15
9.5 DHCP Server Configuration............................................................................................. 9-16
9.5.1 Setting Interfaces to Operate in DHCP Server Mode ........................................... 9-16
9.5.2 Adding Global DHCP Address Pool ...................................................................... 9-18
9.5.3 Defining Allocation Mode of DHCP Address Pool................................................. 9-19
9.5.4 Excluding IP Address from Auto Allocation........................................................... 9-20
9.5.5 Defining IP Address Lease Expiry Limit................................................................ 9-21
9.5.6 Configuring Domain Names for DHCP Clients ..................................................... 9-22
9.5.7 Configuring DNS IP Address for DHCP Client...................................................... 9-23
9.5.8 Configuring NetBIOS IP Address for DHCP Client ............................................... 9-24
9.5.9 Defining NetBIOS Node Type for DHCP Client .................................................... 9-25
9.5.10 Configuring DHCP Customization Items............................................................. 9-27
9.5.11 Configuring Egress Gateway Router for DHCP Client........................................ 9-27
9.5.12 Configuring ping Packet Transfer in DHCP Server............................................. 9-28
9.5.13 Configuring DHCP Accounting............................................................................ 9-29
9.5.14 Configuring BIMS Option Support on the DHCP Server..................................... 9-31
9.5.15 Configuring Option 184 Support on the DHCP Server........................................ 9-32
9.5.16 Configuring Option 82 Support on the DHCP Server.......................................... 9-35
9.5.17 Clearing DHCP Information................................................................................. 9-36
9.6 DHCP Relay Configuration .............................................................................................. 9-37
9.6.1 Setting Interfaces to Operate in DHCP Relay Mode............................................. 9-37
9.6.2 Specifying External DHCP Servers....................................................................... 9-38
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