PLANET XGS3-24042 - Manual (Page 460)

30-99
Switch(config)#ip dhcp snooping enable
Switch(config)# ip dhcp snooping binding enable
Switch(config)# ip dhcp snooping information enable
30.17 ip dhcp snooping information option
allow-untrusted
Command:
ip dhcp snooping information option allow-untrusted
no ip dhcp snooping information option allow-untrusted
Function:
This command is used to set that allow untrusted ports of DHCP snooping to receive DHCP packets
with option82 option. When disabling this command, all untrusted ports will drop DHCP packets with
option82 option.
Command Mode:
Global Mode
Default:
Drop DHCP packets with option82 option received by untrusted ports.
Usage Guide:
Usually the switch with DHCP snooping function connects the terminal user directly, so close
allow-untrusted by default to avoid option82 option added by user privately. Please set uplink port
as trust port when enabling the uplink of DHCP snooping function.
Example:
Enable the function that receives DHCP packets with option82.
Switch(config)#ip dhcp snooping information option allow-untrusted
30.18 ip dhcp snooping information option delimiter
Command:
ip dhcp snooping information option delimiter [colon | dot | slash | space]
no ip dhcp snooping information option delimiter
Function:
Set the delimiter of each parameter for suboption of option82 in global mode, no command restores
the delimiter as slash.
Default Settings: