Siemens S223 User Manual

User Manual                                                                               UMN:CLI 
SURPASS hiD 6615 S223/S323 R1.5 

A50010-Y3-C150-2-7619                                                                         255 

If you specify the default trust policy as deny, the DHCP packet that carries the informa-
tion you specifies below will be permitted, and vice versa. 
 

To specify a trusted remote ID, use the following command. 

 HEXSTRING 

 A.B.C.D 

 STRING 

Option 82 

Specifies a trusted remote ID. 

 

To delete a specified trusted remote ID, use the following command. 

 HEXSTRING 

 A.B.C.D 

 STRING 

Option 82 

Deletes a specified trusted remote ID. 

 

To specify a trusted physical port, use the following command. 

  PORTS  {normal | 

 | all} 

Specifies a trusted physical port. 
normal: DHCP packet 
option82: DHCP option 82 packet 
all: DHCP + option 82 packet 

  {all | PORTS} {nor-

 | option82 | all} 

Option 82 

Deletes a specified trusted port. 

 

In case of a DHCP option 82 environment, when forwarding DHCP messages to a DHCP 
server, a DHCP relay agent normally adds a relay agent information option to the DHCP 
messages and replaces a gateway address in the DHCP messages with a relay agent 
address. 

On the other hand, in case of a simplified DHCP option 82 environment, a DHCP relay 
agent adds a relay agent information option to the DHCP messages without replacement 
of a gateway address field in the DHCP messages. This allows an enhanced security and 
efficient IP assignment in the Layer 2 environment with a relay agent information option. 

To enable/disable the simplified DHCP option 82, use the following command. 

Enables the simplified DHCP option 82. 

Interface 

Disables the simplified DHCP option 82.