Dhcp Advanced Settings; Dhcp Settings For The Vlan Interface - Epygi QuadroM8L Administrator's Manual

QuadroM 32x/8L/26x/12Li/26xi Manual II: Administrator's Guide

DHCP Advanced Settings

The DHCP Advanced Settings page is used to modify the
advanced options of the DHCP server on the Quadro. This
page contains a table where a list of default DHCP server
options is already defined. More options can be added from
this page, as well as settings of the existing options can be
modified. All options in the table on this page are then sent to
the DHCP clients.
•
The Authoritative checkbox is used to enable/disable
authoritative mode on the Quadro DHCP server.
Disabling the checkbox is recommended if several
DHCP servers are used on the network and the Quadro
should provide network parameters to IP phones only.
•
The Ping Check checkbox enables checking the
availability of an IP address on the network before
providing it to a client. If this checkbox is selected, the
Quadro will first ping an IP address retrieved from the IP
pool and wait for a reply. If no a reply is received within a
timeout specified in the Ping timeout text field (by
default 1 sec), the retrieved IP address will be provided
to the client. If otherwise, a new IP address will be
retrieved from the IP pool and the procedure will be
repeated. If this checkbox is not selected, the Quadro
will provide an IP address immediately when requested.
The following functional buttons are available for managing
DHCP options:
Add opens a page Add Entry page where a new DHCP
server option can be defined. The Add Entry page contains a
group of manipulation radio buttons to select between the
predefined DHCP server options or to define your own DHCP
server option:
•
Predefined - this selection allows you to select from the
predefined DHCP server options.
The Option Name drop down list contains the most
common DHCP server options.
The Option Value text field requires the value for the
selected option. The type and format of the value
inserted in this field is dependent on the option
selected from the Option Name drop down list.
•
Custom - this selection allows you to define a new
DHCP server options. The following parameters are
required to be inserted for a new option:
The Option Code text field is used to insert a code of the option. It may have values in a range from 0 to 255.
The Option Value Type drop down list is used to select the type of the option value. It may be an IP address, a boolean or integer value, etc.
The Option Value text field is used to insert the value of an option. Depending on the selected Option Value Type, this field should have the
corresponding value. Warning messages will prevent saving if the value inserted in this field does not correspond to the requirements of the
Option Value Type. If an array should be inserted here, the values should be separated with a comma.

DHCP Settings for the VLAN Interface

DHCP Settings for the VLAN Interface is used to establish virtual networks in the Quadro's LAN or to integrate the Quadro into the corporate
network's virtual LAN/WAN. DHCP service can be activated both on virtual LAN or WAN interfaces. VLAN is useful in corporate companies to divide
large networks into groups and to have devices like Quadros and IP phones in each network separated (for example, to separate networks for data
and voice transmission). Priorities may be assigned to the interfaces for packets prioritization.
With VLAN configuration, each virtual network will be characterized with a VLAN ID (tag). Packets addressed to that network will be checked towards
the ID and if the ID number defined in the incoming packets matched the corresponding network's ID, the packets will be accepted. Otherwise, if the
ID does not match, the packets will be dropped. In the same way, if the Quadro is integrated into the network that uses VLAN technology, outgoing
packets should have the ID number of the corresponding virtual network, for the remote party to accept the packets from the Quadro.
QuadroM 32x/8L/26x/12Li/26xi; (SW Version 5.2.x)
Administrator's Menus
Fig. II-268: DHCP Advanced Settings
Fig. II-269: DHCP Advanced Settings – Add Entry
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