Command For Dhcp Option 82 - Edge-Core ES4624-SFP Manual

ip dhcp server
enable
no ip dhcp server relay information
enable
4. Diagnose and maintain DHCP option 82
Command
Admin mode
show ip dhcp relay information option
debug ip dhcp relay packet

12.2.2 Command for DHCP option 82

12.2.2.1 ip dhcp relay information option
Command：ip dhcp relay information option
no ip dhcp relay information option
Function：Set this command to enable the option82 function of the switch Relay Agent.
The "no ip dhcp relay information option" command is used to disable the option82
function of the switch Relay Agent
Parameters：None.
Default Settings：The system disables the option82 function by default.
Command Mode：Global configuration mode.
Usage Guide：Only the DHCP Relay Agents configuring with this command can add
option82 to the DHCP request message, and let the server to process it. Before enabling
this function, users should make sure that the DHCP service is enabled and the Relay
Agent will transmit the udp broadcast messages whose destination port is 67.
Example：Enable the option82 function of the Relay Agent.
relay information
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.
Explanation
This command will display the state
information of the DHCP option 82 in the
system, including
switch, the interface
policy, the circuit ID mode and the DHCP
server option82 enabling switch.
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.
360
option82 enabling
retransmitting