Fortinet FortiVoice - About Fortivoice Logical Interfaces; About the Management IP

Fortinet Technologies Inc. Page 39 FortiVoice Enterprise Phone System 4.0.0 Administration Guide
The FortiVoice unit supports the following IPv6 features:
• Network interface
• Network routing
• DNS
• DHCP
• Phone extension
• Trunk
About the management IP
The FortiVoice unit has an IP address for administrators to configure it through a network
connection rather than a local console. The management IP address enables administrators to
connect to the FortiVoice unit through port1 or other network ports, even when they are
currently bridging.
By default, the management IP address is indirectly bound to port1 through the bridge. If other
network interfaces are also included in the bridge with port1, you can configure the FortiVoice
unit to respond to connections to the management IP address that arrive on those other
network interfaces.
You can access the web-based manager and the FortiVoice user account using the
management IP address. For details, see “Connecting to the web-based manager” on page 15.
About FortiVoice logical interfaces
In addition to the FortiVoice physical interfaces, you can create the following types of logical
interfaces on the FortiVoice unit:
• VLAN subinterfaces
• Redundant interfaces
• Loopback interfaces
VLAN subinterfaces
A Virtual LAN (VLAN) subinterface, also called a VLAN, is a virtual interface on a physical
interface. The subinterface allows routing of VLAN tagged packets using that physical interface,
but it is separate from any other traffic on the physical interface.
Virtual LANs (VLANs) use ID tags to logically separate devices on a network into smaller
broadcast domains. These smaller domains forward packets only to devices that are part of that
VLAN domain. This reduces traffic and increases network security.
One example of an application of VLANs is a company’s accounting department. Accounting
computers may be located at both main and branch offices. However, accounting computers
need to communicate with each other frequently and require increased security. VLANs allow
the accounting network traffic to be sent only to accounting computers and to connect
accounting computers in different locations as if they were on the same physical subnet.
For information about adding VLAN subinterfaces, see “Configuring the network interfaces” on
page 40.
Redundant interfaces
On the FortiVoice unit, you can combine two or more physical interfaces to provide link
redundancy. This feature allows you to connect to two or more switches to ensure connectivity
in the event one physical interface or the equipment on that interface fails.