Configuring The Dhcp Relay Agent To Support Option 82 - H3C S5120-SI Series Configuration Manual

Configuring the DHCP relay agent to support Option 82

Prerequisites
Complete the following tasks first, before configuring the DHCP relay agent to support Option 82.
•
Enabling DHCP
•
Enabling the DHCP relay agent on the specified interface
•
Correlating a DHCP server group with relay agent interfaces
Configuring the DHCP relay agent to support Option 82
To configure the DHCP relay agent to support Option 82:
To do...
1. Enter system view
2. Enter interface view
3. Enable the relay agent to
support Option 82
4. Configure the handling
strategy for requesting
messages containing Option
82
5. Configure
non-user-
defined
Option 82
6. Configure
user-
defined
Option 82
Use the command...
system-view
interface interface-type
interface-number
dhcp relay information
enable
dhcp relay information
strategy { drop | keep |
replace }
dhcp relay information
Configure the format { normal | verbose
padding format [ node-identifier { mac |
for Option 82
sysname | user-defined
node-identifier } ] }
Configure the
dhcp relay information
code type for the
circuit-id format-type {
circuit ID sub-
ascii | hex }
option
Configure the
dhcp relay information
code type for the
remote-id format-type {
remote ID sub-
ascii | hex }
option
Configure the
padding content dhcp relay information
for the circuit ID circuit-id string circuit-id
sub-option
Configure the
dhcp relay information
padding content
remote-id string { remote-id
for the remote ID
| sysname }
sub-option
Remarks
—
—
Required
Disabled by default.
Optional
replace by default.
Optional
normal by default.
Optional
By default, the code type depends on
the padding format of Option 82. Each
field has its own code type.
The code type configuration applies to
non-user-defined Option 82 only.
Optional
By default, the code type is hex.
This code type configuration applies to
non-user-defined Option 82 only.
Optional
By default, the padding content
depends on the padding format of
Option 82.
Optional
By default, padding content depends
on the padding format of Option 82.
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