3-8
Configuring the DHCP relay agent to support Option 82
Follow these steps to configure the DHCP relay agent to support Option 82:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter interface view
interface
interface-type
interface-number
—
Enable the relay agent to support Option
82
dhcp relay information
enable
Required
Disabled by default.
Configure the handling strategy for
requesting messages containing Option
82
dhcp relay information
strategy
{
drop
|
keep
|
replace
}
Optional
replace
by default.
Configure the
padding format for
Option 82
dhcp relay information
format
{
normal
|
verbose
[
node-identifier
{
mac
|
sysname
|
user-defined
node-identifier
} ] }
Optional
normal
by default.
Configure the code
type for the circuit ID
sub-option
dhcp relay information
circuit-id format-type
{
ascii
|
hex
}
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.
Configure
non-user-defined
Option 82
Configure the code
type for the remote
ID sub-option
dhcp relay information
remote-id format-type
{
ascii
|
hex
}
Optional
By default, the code type
is
hex
.
This code type
configuration applies to
non-user-defined Option
82 only.
Configure the
padding content for
the circuit ID
sub-option
dhcp relay information
circuit-id string circuit-id
Optional
By default, the padding
content depends on the
padding format of Option
82.
Configure
user-defined
Option 82
Configure the
padding content for
the remote ID
sub-option
dhcp relay information
remote-id string
{
remote-id
|
sysname
}
Optional
By default, the padding
content depends on the
padding format of Option
82.
