PLANET XGS3-24042 - Manual (Page 251)

31-5
ip dhcp relay information option
self-defined remote-id format [ascii |
hex]
Set self-defined format of remote-id for
relay option82.
ip dhcp relay information option
self-defined subscriber-id {vlan | port | id
(switch-id (mac | hostname)|
remote-mac)| string WORD }
no ip dhcp relay information option
self-defined subscriber-id
Set creation method for option82, users
can define the parameters of circute-id
suboption by themselves
ip dhcp relay information option
self-defined subscriber-id format [ascii |
hex]
Set self-defined format of circuit-id for relay
option82.
7. Diagnose and maintain DHCP option 82
Command Explanation
Admin mode
show ip dhcp relay information option
This command will display the state
information of the DHCP option 82 in the
system, including option82 enabling switch,
the interface retransmitting policy, the
circuit ID mode and the DHCP server
option82 enabling switch.
debug ip dhcp relay packet
This command is used to display the
information of data packets processing in
DHCP Relay Agent, including the “add” and
“peel” action of option 82.
31.3 DHCP option 82 Application Examples
Figure 31-1 A DHCP option 82 typical application example
Switch1
Switch2
DHCP Client PC1
DHCP Client PC2
DHCP Server
Vlan2:ethernet1/2
Vlan2:ethernet1/3
DHCP Relay Agent
Switch3
Vlan3