Configuration procedure, Verifying the configuration, Configuring the dhcp relay agent – H3C Technologies H3C S12500-X Series Switches User Manual

Page 86: Overview

Figure 28 Network diagram

Configuration procedure

# Enable DHCP snooping.

system-view

[SwitchB] dhcp snooping enable

# Configure Ten-GigabitEthernet 1/0/1 as a trusted port.

[SwitchB] interface Ten-GigabitEthernet1/0/1

[SwitchB-Ten-GigabitEthernet1/0/1] dhcp snooping trust

[SwitchB-Ten-GigabitEthernet1/0/1] quit

# Configure Option 82 on Ten-GigabitEthernet 1/0/2.

[SwitchB] interface Ten-GigabitEthernet1/0/2

[SwitchB-Ten-GigabitEthernet1/0/2] dhcp snooping information enable

[SwitchB-Ten-GigabitEthernet1/0/2] dhcp snooping information strategy replace

[SwitchB-Ten-GigabitEthernet1/0/2] dhcp snooping information circuit-id string

company001

[SwitchB-Ten-GigabitEthernet1/0/2] dhcp snooping information remote-id string device001

[SwitchB-Ten-GigabitEthernet1/0/2] quit

# Configure Option 82 on Ten-GigabitEthernet 1/0/3.

[SwitchB] interface Ten-GigabitEthernet 1/0/3

[SwitchB-Ten-GigabitEthernet1/0/3] dhcp snooping information enable

[SwitchB-Ten-GigabitEthernet1/0/3] dhcp snooping information strategy replace

[SwitchB-Ten-GigabitEthernet1/0/3] dhcp snooping information circuit-id verbose

node-identifier sysname format ascii

[SwitchB-Ten-GigabitEthernet1/0/3] dhcp snooping information remote-id string device001

Verifying the configuration

Use the display dhcp snooping information command to display Option 82 configuration information on

Ten-GigabitEthernet 1/0/2 and Ten-GigabitEthernet 1/0/3 on the DHCP snooping device.

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