H3C S3100-52P Operation Manual page 485

Operation Manual - DHCP
H3C S3100-52P Ethernet Switch
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 ........................................................................................................ 1-4
1.4 Protocol Specification ........................................................................................................ 1-5
Chapter 2 DHCP Snooping Configuration .................................................................................. 2-1
2.1 DHCP Snooping Overview ................................................................................................ 2-1
2.1.1 Introduction to DHCP Snooping .............................................................................. 2-1
2.1.2 Introduction to DHCP-Snooping Option 82 ............................................................. 2-2
2.1.3 Introduction to IP Filtering ....................................................................................... 2-5
2.2 Configuring DHCP Snooping ............................................................................................. 2-6
2.2.1 Configuring DHCP Snooping .................................................................................. 2-6
2.2.2 Configuring DHCP Snooping to Support Option 82 ................................................ 2-7
2.2.3 Configuring IP Filtering.......................................................................................... 2-11
2.3 DHCP Snooping Configuration Examples ....................................................................... 2-12
2.3.1 DHCP-Snooping Option 82 Support Configuration Example................................ 2-12
2.3.2 IP Filtering Configuration Example........................................................................ 2-14
2.4 Displaying DHCP Snooping Configuration ...................................................................... 2-15
Chapter 3 DHCP Packet Rate Limit Configuration..................................................................... 3-1
3.1 Introduction to DHCP Packet Rate Limit ........................................................................... 3-1
3.2 Configuring DHCP Packet Rate Limit ................................................................................ 3-2
3.2.1 Configuring DHCP Packet Rate Limit ..................................................................... 3-2
3.2.2 Configuring Port State Auto Recovery .................................................................... 3-2
3.3 Rate Limit Configuration Example ..................................................................................... 3-3
Chapter 4 DHCP/BOOTP Client Configuration ........................................................................... 4-1
4.1 Introduction to DHCP Client............................................................................................... 4-1
4.2 Introduction to Automatic Configuration ............................................................................ 4-1
4.2.1 Application Background .......................................................................................... 4-1
4.2.2 How Automatic Configuration Works ...................................................................... 4-2
4.3 Introduction to BOOTP Client ............................................................................................ 4-4
4.4 Configuring a DHCP/BOOTP Client .................................................................................. 4-4
4.4.1 DHCP Client Configuration Example ...................................................................... 4-5
4.4.2 BOOTP Client Configuration Example .................................................................... 4-6
4.5 Displaying DHCP/BOOTP Client Configuration................................................................. 4-6
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Table of Contents