Download Reference Manual Web-Based Interface Rel. 5.0, L2P - e

Advanced
8.1 DHCP Relay Agent
8.1 DHCP Relay Agent
This dialog allows you to configure the DHCP relay agent.
… 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 device can change to
another DHCP server.
… 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 device will forward attached “Option
82” fields, but it will not add any on. Under “Type”, you specify the format
in which the device recognition of this device is entered in the “Option 82”
field by the DHCP relay agent.
The options are:
– IP Address
– MAC Address (state on delivery)
– System name (client ID)
– Other (freely definable ID, which you can specify in the following rows).
“DHCP server RemoteID entry” shows you the value that you enter when
configuring your DHCP server. “Type display” shows the device recognition in the selected form.
X The “Circuit ID” column shows you the value which you enter when configuring your DHCP server. The “Circuit ID” contains the port number and
the ID of the VLAN from which the DHCP has been received.
Example of a configuration of your DHCP server:
Type: mac
DHCP server for RemoteID entry: 00 06 00 80 63 00 06 1E
Circuit ID: B3 06 00 00 01 00 01 01
This results in the entry for the “Hardware address” in the DHCP server:
B306000001000101000600806300061E
… In the “Option 82 on” column, you can switch this function on/off for each
port.
… In the “Hirschmann Device” column, you mark the ports to which a Hirschmann device is connected.
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RM Web L3P+
Release 5.0 04/09