3Com 4500 PWR 26-Port Configuration Manual page 503

Configuring a handling policy for DHCP packets with Option 82
F ollow these steps to confi
To do...
Enter system view
Configure a global handl
policy for requests that co
Option 82
Enter Ethernet port view
Configure a h andling policy for
requests that contain Option 82
received on the specified
in erface t
If a handling policy is configured on a
policy for requests received on this port, while the globally configured handling policy applies on those
port s where a handling policy is not n
Configuring the storage format of Option 82
S4500 Series Ethernet Switches support the HEX or ASCII format for the Option 8
Follow these steps to configure a storage format for the Option 82 field:
To do...
Enter system view
Co nfigure a storage format
for the Option 82 field
T he dhcp-snooping inform
f ield. If you have configured t
instead of the one specified with the dhcp-snooping information
Configuring the circuit ID sub-option
F ollow these steps to confi
To do...
Enter system view
gure a h andling policy for DHCP p
Use the command...
system-view
ing dhcp-snooping information
ntain strategy { drop | keep |
replace }
interface interface-type
interface-number
dhcp-snooping information
strategy { drop | keep |
replace }
port, this configuration overrides the globally configured handling
atively configured.
Use the command...
system-view
dhcp-snooping information
format { hex | ascii }
ation f ormat command applies o
he circ uit ID or remote ID sub-option
gure the circuit ID sub-option:
Use the command...
system-view
41-7
acket s w ith Option 82:
Remarks
—
Optional
The default handling policy is
replace.
—
Optional
The default policy is replace.
2 field.
Remarks
—
Optional
By de fault, the format is hex.
nly to the default content of the Option 82
, t he format of the sub-option is ASC
format command.
Remarks
—
II,