H3C S7500 Series Operation Manual

Operation Manual - DHCP
H3C S7500 Series Ethernet Switches
Chapter 1 DHCP Overview............................................................................................................ 1-1
1.1 Introduction to DHCP......................................................................................................... 1-1
1.2 DHCP IP Address Assignment .......................................................................................... 1-2
1.2.1 IP Address Assignment Policy ................................................................................ 1-2
1.2.2 Obtaining IP Addresses Dynamically ...................................................................... 1-2
1.2.3 Updating IP Address Lease .................................................................................... 1-3
1.3 DHCP Packet Format ........................................................................................................ 1-3
1.4 DHCP Packet Processing Modes ...................................................................................... 1-5
1.5 Protocols and Standards ................................................................................................... 1-5
Chapter 2 DHCP Server Configuration........................................................................................ 2-1
2.1 Introduction to DHCP Server ............................................................................................. 2-1
2.1.1 Usage of DHCP Server ........................................................................................... 2-1
2.1.2 DHCP Address Pool................................................................................................ 2-1
2.1.3 DHCP IP Address Preferences ............................................................................... 2-2
2.2 Global Address Pool-Based DHCP Server Configuration ................................................. 2-3
2.2.1 Configuration Task List ........................................................................................... 2-3
2.2.2 Enabling DHCP ....................................................................................................... 2-3
2.2.3 Configuring Global Address Pool Mode on Interface(s).......................................... 2-3
2.2.4 Configuring How to Assign IP Addresses in a Global Address Pool ...................... 2-4
2.2.5 Configuring DNS Services for the DHCP Server .................................................... 2-6
2.2.6 Configuring NetBIOS Services for the DHCP Server.............................................. 2-7
2.2.7 Customizing DHCP Service .................................................................................... 2-8
2.2.8 Configuring Gateway Addresses for DHCP Clients ................................................ 2-8
2.3 Interface Address Pool-Based DHCP Server Configuration ............................................. 2-9
2.3.1 Configuration Overview........................................................................................... 2-9
2.3.2 Enabling DHCP ..................................................................................................... 2-10
2.3.3 Configuring to Assign the IP Addresses of Interface Address Pools to DHCP
Clients ............................................................................................................................ 2-10
2.3.4 Configuring to Assign IP Addresses of DHCP Address Pools to DHCP Clients ........ 2-11
2.3.5 Configuring DNS Services for the DHCP Server .................................................. 2-13
2.3.6 Configuring NetBIOS Services for DHCP Clients ................................................. 2-14
2.3.7 Customizing DHCP Service .................................................................................. 2-15
2.4 DHCP Security Configuration .......................................................................................... 2-16
2.4.1 Prerequisites ......................................................................................................... 2-16
2.4.2 Configuring Private DHCP Server Detecting ........................................................ 2-16
2.4.3 Configuring IP Address Detecting ......................................................................... 2-17
2.5 Displaying and Maintaining a DHCP Server.................................................................... 2-18

Table of Contents

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Table of Contents