FNGi DHCPatriot Version 6, Руководство по эксплуатации

Страница: 45 / 104

Adding
Choose the Shared Network that the Static Subnet should be a part of. Fill out the rest
of the form according to the subnet values. On screen help is available if needed. Click
on Commit, and a new subnet will appear in the list at the bottom of the screen.
Editing
This is much the same as adding. Click on the Edit link of the desired Static Subnet and
the form will be auto completed with the values from that choice. Make whatever
changes are needed. Click on Commit to save the changes. The changes should be
reflected in the list at that point.
Removal
To remove a subnet, click on the Delete link. A confirmation dialogue will appear. Click
OK and the subnet should be removed.
Maintenance Subnet
A maintenance subnet is used
to define a subnet that a
DHCP relay agent may talk
from but that is not part of any
DHCP pool in the given
network.
For example, a Cisco router
may be set up as a DHCP relay
agent by having ip helper-
address configured on an
ethernet interface facing client
devices. If the primary IP
address on that ethernet interface is NOT part of a DHCP pool for use by those client
devices, the relayed traffic will not be known to the DHCPatriot system as it is part of no
subnets that it has configured. Hence, we add the subnet that the aforementioned IP
address is part of as a maintenance subnet on the DHCPatriot system attached to the
network in question. That way the DHCPatriot system knows that when it gets relayed
DHCP from any IP in that maintenance subnet that it goes with the attached network.
To access the configuration screen for maintenance subnet as shown in figure 7.4,
simply expand the Standard DHCP Config menu, and click on Maintenance Subnet. A
screen similar to the one in figure 7.4 should appear. On this screen, you can add, edit
or delete maintenance subnets.
Chapter 7: Standard DHCP 45
DHCPatriot Version 6 Operations Manual This document © 2017 First Network Group Inc. All Rights Reserved
Figure 7.4