Specifications

Web-based management
166
5.6 Extras
RS2-4R
Release 1.0 03/04
5.6.1 DHCP Relay Agent
This dialog allows you to configure the DHCP relay agent. The DHCP relay
agent is a function which is integrated into this switch (see
“System Configu-
ration via DHCP Option 82” on page 64).
V Enter the DHCP server IP address.
If one DHCP server is not available, then you can enter up to three
additional DHCP server IP addresses, so that the switch can change to
another DHCP server.
V With Option 82, a DHCP relay agent which receives a DHCP request
adds an "Option 82" field to the request, as long as the request received
does not already have such a field.
When the function is switched off, the switch will forward attached "Option
82" fields, but it will not add any. In the "Type" frame, you specify the for
-
mat in which the device recognition of this switch is entered in the "Option
82" field by the DHCP relay agent.
The options are:
– IP address
– MAC address (setting on delivery)
– System name (client ID).
– other (free definable ID, which you can enter in the following line)
"DHCP server RemoteID entry" shows you the value which you enter
when configuring your DHCP server.
"Type display" shows the device recognition in the selected form.
D The "Circuit ID" column shows you the value which you enter when con-
figuring your DHCP server. The "Circuit ID" contains the port number and
the ID of the VLAN where the DHCP request has been received.
Example for the configuration of your DHCP server (see Fig. 87):
Type: mac
DHCP server RemoteID entry: 00 06 00 80 63 00 06 1E
Circuit-ID: B3 06 00 00 01 00 01 01
It follows from this that the „Harwareadresse“ in the DHCP server is:
B306000001000101000600806300061E
V In the "Relay function on/off" column, you can switch this function on/off
for each port.
V In the "Hirschmann agent" column, you mark the ports to which a
Hirschmann switch is connected.