H3C S9500 Series Operation Manual page 62

Operation Manual - DHCP
H3C S9500 Series Routing Switches
Chapter 1 DHCP Overview............................................................................................................ 1-1
1.1 DHCP Principles ................................................................................................................ 1-1
1.1.1 BOOTP Relay Agent ............................................................................................... 1-3
1.1.2 DHCP and BOOTP Relay Agent............................................................................. 1-4
1.2 General DHCP Configuration ............................................................................................ 1-4
1.2.1 Enabling/Disabling DHCP ....................................................................................... 1-4
1.2.2 Configuring Processing Method of DHCP Packets................................................. 1-5
1.2.3 Enabling/Disabling Unauthorized DHCP Server Detection..................................... 1-6
Chapter 2 DHCP Server Configuration........................................................................................ 2-1
2.1 Configuring the DHCP Server............................................................................................ 2-1
2.1.1 Creating a Global DHCP IP Address Pool .............................................................. 2-2
2.1.2 Configuring the IP Address Assignment Mode ....................................................... 2-3
2.1.3 Excluding Specified IP Addresses from Assignment .............................................. 2-5
2.1.4 Configuring a Lease Time for a DHCP Address Pool ............................................. 2-5
2.1.5 Configuring a Domain Name for DHCP Clients ...................................................... 2-6
2.1.6 Configuring DNS Servers for DHCP Clients ........................................................... 2-7
2.1.7 Configuring NetBIOS Server Addresses for DHCP Clients .................................... 2-9
2.1.8 Configuring a NetBIOS Node Type for DHCP Clients .......................................... 2-10
2.1.9 Configuring Custom DHCP Options...................................................................... 2-11
2.1.10 Configuring Gateways for DHCP Clients ............................................................ 2-12
2.1.11 Configuring Parameters for DHCP Server to Send Ping Packets ...................... 2-13
2.2 Displaying and Debugging the DHCP Server.................................................................. 2-14
2.3 DHCP Server Configuration Example.............................................................................. 2-15
Chapter 3 DHCP Relay Agent Configuration .............................................................................. 3-1
3.1 Configuring the DHCP Relay Agent................................................................................... 3-1
3.1.1 Introduction to DHCP Relay Agent.......................................................................... 3-1
3.1.2 Configuring the DHCP Relay Agent ........................................................................ 3-2
3.1.3 Displaying and Maintaining the DHCP Relay Agent ............................................... 3-7
3.1.4 DHCP Relay Agent Configuration Example............................................................ 3-7
3.2 DHCP Option 82 Configuration.......................................................................................... 3-9
3.2.1 Introduction to Option 82 Support on DHCP Relay Agent ...................................... 3-9
3.2.2 Configuring Option 82 Support on DHCP Relay Agent......................................... 3-13
3.2.3 Option 82 Support on DHCP Relay Agent Configuration Example ...................... 3-15
Chapter 4 DHCP Snooping Configuration .................................................................................. 4-1
4.1 DHCP Snooping Overview ................................................................................................ 4-1
4.1.1 Introduction.............................................................................................................. 4-1
4.1.2 DHCP Snooping and ACL....................................................................................... 4-2
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