D-Link DGS-3200 SERIES Cli Manual page 394

1. Suboption type
3. Circuit ID type
5. VLAN : The incoming VLAN ID of DHCP client packet.
6 . Module : For a standalone switch, Module is always 0.
7. Port : The incoming port number of DHCP client packet, port number starts from 1.
Remote ID suboption format :
1. 2.
2
1 byte 1 byte
1. Suboption type
3. Remote ID type
5. MAC address : The switch's system MAC address.
Parameters
Parameters
state
check
policy
Restrictions
You must have administrator privileges.
DGS-3200 Series Layer 2 Gigabit Managed Switch CLI Manual
3. 4.
8 0 6
1 byte 1 byte
Description
Enable or disable the switch to insert and remove DHCP relay agent
information 82 field in messages between DHCP server and client.
The default setting is disable.
Enable or disable the switch to check the validity of DHCP relay agent
information 82 field in messages between DHCP server and client.
The invalid messages are those packets that contain the option 82 field
from DHCP client and those packets that contain the wrong format of
option 82 field from DHCP server. If check is set to enable, the switch
will drop all invalid messages received from DHCP server or client.
The default setting is disable.
Configure the reforwarding policy as following :
replace: replace the exiting option 82 field in messages.
drop: discard messages with existing option 82 field.
keep: retain the existing option 82 field in messages.
The default setting is replace.
Note: The reforwarding policy is active only when the "check" option is
disabled.
2. Length
4. Length
5.
6 bytes
2. Length
4. Length
394
MAC address