SNR S2940-8G-v2 Switch Configuration Guide
DHCP option 82 Configuration
Global Mode
ip dhcp relay information option
remote-id { standard | <remote-
id> }
no ip dhcp relay information op-
tion remote-id
Set the suboption2 (remote ID option) content of option 82
added by DHCP request packets (They are received by the
interface). The no command sets the additive suboption2
(remote ID option) format of option 82 as standard.
3. Enable the DHCP option 82 of server
Command Explanation
Global Mode
ip dhcp server relay information
enable
no ip dhcp server relay informa-
tion enable
This command is used to enable the switch DHCP server to
identify option82. The 'no ip dhcp server relay information
enable' command will make the server ignore the option 82.
4. Configure DHCP option 82 default format of Relay Agent
Command Explanation
Global Mode
ip dhcp relay information option
subscriber-id format { hex | acsii
| vs-hp }
Set subscriber-id format of Relay Agent option82.
ip dhcp relay information option
remote-id format { default | vs-hp
}
Set remote-id format of Relay Agent option82.
5. Configure delimiter
Command Explanation
Global Mode
ip dhcp relay information option
delimiter [colon | dot | slash |
space]
no ip dhcp relay information op-
tion delimiter
Set the delimiter of each parameter for suboption of option82
in global mode, no command restores the delimiter as slash.
6. Configure creation method of option82
Command Explanation
Global Mode
ip dhcp relay information option
self-defined remote-id { host-
name | mac | string WORD }
no ip dhcp relay information op-
tion self-defined remote-id
Set creation method for option82, users can define the pa-
rameters of remote-id suboption by themselves.
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