3Com E4500-24 Cli Configuration Manual page 477

Configuring a handling policy for DHCP packets with Option 82
Follow these steps to configure a handling policy for DHCP packets with Option 82:
To do...
Enter system view
Configure a global handling
policy for requests that contain
Option 82
Enter Ethernet port view
Configure a handling policy for
requests that contain Option 82
received on the specified
interface
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.
Configuring the storage format of Option 82
S4500 Series Ethernet Switches support the HEX or ASCII format for the Option 82 field.
Follow these steps to configure a storage format for the Option 82 field:
To do...
Enter system view
Configure a storage format
for the Option 82 field
The dhcp-snooping information format command applies only to the default content of the Option 82
field. If you have configured the circuit ID or remote ID sub-option, the format of the sub-option is ASCII,
instead of the one specified with the dhcp-snooping information format command.
Use the command...
system-view
dhcp-snooping information
strategy { drop | keep |
replace }
interface interface-type
interface-number
dhcp-snooping information
strategy { drop | keep |
replace }
Use the command...
system-view
dhcp-snooping information
format { hex | ascii }
4-7
Remarks
—
Optional
The default handling policy is
replace.
—
Optional
The default policy is replace.
Remarks
—
Optional
By default, the format is hex.