PLANET XGS3-24040 - Manual (Page 364)

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27.18 ip dhcp snooping option82 enable
Command:
ip dhcp snooping option82 enable
no ip dhcp snooping option82 enable
Function:
To enable DHCP option82 of dot1x in access switch. After DHCP Snooping monitored DHCP
requires packets, add the option82 which can indicate user authentication state to the back of
requires packet, and then deliver to DHCP relay.
Parameter:
None.
Command Mode:
Global Mode.
Default:
The DHCP option82 of dot1x is disabled by default.
Usage Guide:
This command configures the DHCP snooping to append the option82 information for DHCP
requests when dot1x dhcpoption82based authentication is applied. By default, for un-authenticated
users, the switch appends to the option 82 field of the DHCP requests with the remote-id field as
unauth, and the circuit-id field as the MAC address of the CPU port of the switch. The DHCP server
allocates addresses based on the information provided by the option82 field. And users can retrieve
different IP addresses before and after authentication. When this command is applied, DHCP relay
should not be configured on the truck switch which is connected to the local access switch.
Example:
Enable option82 function of DHCP Snooping.
switch(Config)#ip dhcp snooping option82 enable
Relative Command:
dot1x port-method dhcpoption82based
27.19 enable trustview key
Command:
enable trustview key {0 | 7} <password>
no enable trustview key
Function:
To configure DES encrypted key for private packets, this command is also the switch for the private
packets encrypt and hash function enabled or not.
Parameter:
is character string length less than 16, which use as encrypted key. 0 for un-encrypted
text for the password, while 7 for encrypted.
Command Mode:
Global Mode.
Default:
Disabled.