H3C S3100 8C SI - Page 480

Operation Manual – DHCP
H3C S3100 Series Ethernet Switches Chapter 2 DHCP Snooping Configuration
2-10
I. Enable DHCP-snooping Option 82 support
Table 2-7 Enable DHCP-snooping Option 82 support
Operation Command Description
Enter system view
system-view
—
Enable DHCP-snooping
Option 82 support
dhcp-snooping
information enable
Required
By default, DHCP
snooping Option 82
support is disabled.
II. Configure a handling policy for DHCP packets with Option 82
Table 2-8 Configure a handling policy for DHCP packets with Option 82
Operation Command Description
Enter system view
system-view
Optional
Configure a global
handling policy for
requests that contain
Option 82
dhcp-snooping
information strategy
{ drop | keep | replace }
Optional
The default handling
policy is replace.
Enter Ethernet port view
interface interface-type
interface-number
—
Configure a handling
policy for requests that
contain Option 82
received on the specified
interface
dhcp-snooping
information strategy
{ drop | keep | replace }
Optional
The default policy is
replace.
 Note:
If a handling policy is configured on a port, this configuration overrides the globally
configured handling policy for requests received on this port, while the globally
configured handling policy applies on those ports where a handling policy is not natively
configured.
III. Configure the storage format of Option 82
S3100-EI Series Ethernet Switches support the HEX or ASCII format for the Option 82
field.