H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – DHCP
H3C S7500E Series Ethernet Switches Table of Contents
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Table of Contents
Chapter 1 DHCP Overview............................................................................................................ 1-1
1.1 Introduction to DHCP......................................................................................................... 1-1
1.2 DHCP Address Allocation.................................................................................................. 1-2
1.2.1 Allocation Mechanisms ........................................................................................... 1-2
1.2.2 Dynamic IP Address Allocation Process................................................................. 1-2
1.2.3 IP Address Lease Extension ................................................................................... 1-3
1.3 DHCP Message Format..................................................................................................... 1-3
1.4 DHCP Options ................................................................................................................... 1-5
1.4.1 DHCP Options Overview......................................................................................... 1-5
1.4.2 Introduction to DHCP Options................................................................................. 1-5
1.4.3 Self-Defined Options ............................................................................................... 1-5
1.5 Protocols and Standards ................................................................................................... 1-8
Chapter 2 DHCP Server Configuration........................................................................................ 2-1
2.1 Introduction to DHCP Server ............................................................................................. 2-1
2.1.1 Application Environment ......................................................................................... 2-1
2.1.2 DHCP Address Pool................................................................................................ 2-2
2.1.3 IP Address Allocation Sequence............................................................................. 2-3
2.2 DHCP Server Configuration Task List ............................................................................... 2-3
2.3 Enabling DHCP.................................................................................................................. 2-3
2.4 Enabling the DHCP Server on an Interface....................................................................... 2-4
2.5 Configuring an Address Pool for the DHCP Server........................................................... 2-5
2.5.1 Configuration Task List ........................................................................................... 2-5
2.5.2 Creating a DHCP Address Pool.............................................................................. 2-5
2.5.3 Configuring an Address Allocation Mode................................................................ 2-6
2.5.4 Configuring a Domain Name Suffix for the Client ................................................... 2-8
2.5.5 Configuring DNS Servers for the Client .................................................................. 2-8
2.5.6 Configuring WINS Servers and NetBIOS Node Type for the Client ....................... 2-9
2.5.7 Configuring the BIMS Server Information for the Client........................................ 2-10
2.5.8 Configuring Gateways for the Client ..................................................................... 2-10
2.5.9 Configuring Option 184 Parameters for the Client with Voice Service ................. 2-11
2.5.10 Configuring the TFTP Server and Bootfile Name for the Client.......................... 2-12
2.5.11 Configuring Self-Defined DHCP Options ............................................................ 2-13
2.6 Configuring the DHCP Server Security Functions........................................................... 2-14
2.6.1 Configuration Prerequisites................................................................................... 2-14
2.6.2 Enabling Unauthorized DHCP Server Detection................................................... 2-14
2.6.3 Configuring IP Address Conflict Detection............................................................ 2-15
2.7 Configuring the Handling Mode for Option 82 ................................................................. 2-15