Siemens S223 User Manual

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User Manual                                                                               UMN:CLI 
SURPASS hiD 6615 S223/S323 R1.5 
A50010-Y3-C150-2-7619                                                                         247 
8.8.2 
DHCP Address Allocation with Option 82 
The DHCP server provided by the hiD 6615 S223/S323 can assign dynamic IP addresses 
based on DHCP option 82 information sent by the DHCP relay agent. 
The information sent via DHCP option 82 will be used to identify which port the 
DHCP_REQUEST came in on. The feature introduces a new DHCP class capability, 
which is a method to group DHCP clients based on some shared characteristics other 
than the subnet in which the clients reside. The DHCP class can be configured with op-
tion 82 information and a range of IP addresses. 
 
8.8.2.1 
DHCP Class Capability 
To enable the DHCP server to use a DHCP class to assign IP addresses, use the follow-
ing command. 
Command Mode 
Description 
ip dhcp use class 
Enables the DHCP server to use a DHCP class to 
assign IP addresses. 
no ip dhcp use class 
Global 
Disables the DHCP server to use a DHCP class. 
 
8.8.2.2 
DHCP Class Creation 
To create a DHCP class, use the following command. 
Command Mode 
Description 
ip dhcp class
 CLASS 
Creates a DHCP class and opens DHCP Class Con-
figuration
 mode. 
CLASS: DHCP class name 
no ip dhcp class
 [CLASS
Global 
Deletes a created DHCP class. 
 
8.8.2.3 
Relay Agent Information Pattern 
To specify option 82 information for IP assignment, use the following command. 
Command Mode 
Description 
relay-information remote-id ip
 A.B.C.D [circuit-
id
  {hex  HEXSTRING | index <0-65535> | text 
STRING
}] 
relay-information remote-id hex
  HEXSTRING 
[circuit-id {hex HEXSTRING | index <0-65535> | 
text
 STRING}] 
relay-information
  remote-id  text  STRING  [cir-
cuit-id
  {hex  HEXSTRING | index <0-65535> | 
text
 STRING}] 
DHCP 
Class 
Specifies option 82 information for IP 
assignment.