Fortinet FortiVoice GO08, Administration Manual, Page: 24 / 66

Fortinet Technologies Inc. Page 24 FortiVoice Gateway 5.3.6 Administration Guide
Configuring System Settings
The System menu lets you set up configurations of the FortiVoice Gateway operation system,
including administrator accounts, network settings, system time, SIP settings, system
maintenance, and more.
This topic includes:
• Configuring network settings
• Configuring administrator accounts
• Configuring system time, system options, and GUI appearance
• Configuring advanced system settings
• Maintaining the system
Configuring network settings
The Network submenu provides options to configure network connectivity and administrative
access to the web-based manager or CLI of the FortiVoice Gateway through each network
interface.
This topic includes:
• About FortiVoice Gateway logical interfaces
• Configuring the network interfaces
• Configuring static routes
• Configuring DNS
• Capturing voice and fax packets
About FortiVoice Gateway logical interfaces
In addition to the physical interfaces, you can create the following types of logical interfaces on
the FortiVoice Gateway:
• 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 forwarding 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.