H3C S7500E Series Operation Manual page 923

Operation Manual - DHCP
H3C S7500E Series Ethernet Switches
2.8 Displaying and Maintaining the DHCP Server................................................................. 2-17
2.9 DHCP Server Configuration Examples............................................................................ 2-17
2.10 Troubleshooting DHCP Server Configuration................................................................ 2-19
Chapter 3 DHCP Relay Agent Configuration .............................................................................. 3-1
3.1 Introduction to DHCP Relay Agent .................................................................................... 3-1
3.1.1 Application Environment ......................................................................................... 3-1
3.1.2 Fundamentals.......................................................................................................... 3-1
3.1.3 DHCP Relay Agent Support for Option 82.............................................................. 3-2
3.2 Configuration Task List ...................................................................................................... 3-3
3.3 Configuring the DHCP Relay Agent................................................................................... 3-3
3.3.1 Enabling DHCP ....................................................................................................... 3-3
3.3.2 Enabling the DHCP Relay Agent on an Interface ................................................... 3-4
3.3.3 Correlating a DHCP Server Group with a Relay Agent Interface ........................... 3-4
3.3.4 Configuring the DHCP Relay Agent to Send a DHCP-Release Request ............... 3-5
3.3.5 Configuring the DHCP Relay Agent Security Functions ......................................... 3-6
3.3.6 Configuring the DHCP Relay Agent to Support Option 82 ..................................... 3-8
3.4 Displaying and Maintaining DHCP Relay Agent Configuration ......................................... 3-9
3.5 DHCP Relay Agent Configuration Example .................................................................... 3-10
3.6 Troubleshooting DHCP Relay Agent Configuration......................................................... 3-11
Chapter 4 DHCP Client Configuration ......................................................................................... 4-1
4.1 Introduction to DHCP Client............................................................................................... 4-1
4.2 Enabling the DHCP Client on an Interface ........................................................................ 4-1
4.3 Displaying and Maintaining the DHCP Client .................................................................... 4-2
4.4 DHCP Client Configuration Example ................................................................................. 4-2
Chapter 5 DHCP Snooping Configuration .................................................................................. 5-1
5.1 DHCP Snooping Overview ................................................................................................ 5-1
5.1.1 Function of DHCP Snooping ................................................................................... 5-1
5.1.2 Application Environment of Trusted Ports............................................................... 5-2
5.1.3 DHCP Snooping Support for Option 82 .................................................................. 5-3
5.2 Configuring DHCP Snooping Basic Functions .................................................................. 5-4
5.3 Configuring DHCP Snooping to Support Option 82........................................................... 5-5
5.3.1 Prerequisites ........................................................................................................... 5-5
5.3.2 Configuring DHCP Snooping to Support Option 82 ................................................ 5-5
5.4 Displaying and Maintaining DHCP Snooping .................................................................... 5-6
5.5 DHCP Snooping Configuration Example........................................................................... 5-6
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