Hirschmann RS20 User Manual page 198

Setting up configuration environment
Figure 75: Default setting for the fixed address assignment
In the Hardware address field, you enter the Circuit Identifier
and the Remote Identifier (see "DHCP Relay Agent" in the "Web-
based Interface" reference manual).
With Hardware address you identify the device and the port to which
that device is connected, to which you want the assign the IP address
in the line below it.
The hardware address is in the following form:
ciclhhvvvvssmmpprirlxxxxxxxxxxxx
ci: sub-identifier for the type of the circuit ID
cl: length of the circuit ID
hh: Hirschmann ID: 01 if a Hirschmann device is connected to the port,
otherwise 00.
vvvv: VLAN ID of the DHCP request (default: 0001 = VLAN 1)
ss: socket of device at which the module with that port is located to
which the device is connected. Enter the value 00.
mm: module with the port to which the device is connected.
pp: port to which the device is connected.
ri: sub-identifier for the type of the remote ID
rl: length of the remote ID
xxxxxxxxxxxx: remote ID of the device (e.g. MAC address) to which a
device is connected.
198
A.2 Setting up DHCP Server Option 82
Basic Configuration L2P
Release 4.2 07/08