Fortinet Gate 60D, Руководство администратора

Страница: 150 / 706

VLAN overview System Network
FortiGate Version 4.0 Administration Guide
150 01-400-89802-20090424
http://docs.fortinet.com/ • Feedback
5 Enter the administrative distance.
6 Select OK .
Figure 74: Transparent mode route settings
VLAN overview
A VLAN is group of PCs, servers, and other network devices that communicate as if they
were on the same LAN segment, regardless of their location. For example, the
workstations and servers for an accounting department could be scattered throughout an
office or city and connected to numerous network segments, but still belong to the same
VLAN.
A VLAN segregates devices logically instead of physically. Each VLAN is treated as a
broadcast domain. Devices in VLAN 1 can connect with other devices in VLAN 1, but
cannot connect with devices in other VLANs. The communication among devices on a
VLAN is independent of the physical network.
A VLAN segregates devices by adding 802.1Q VLAN tags to all of the packets sent and
received by the devices in the VLAN. VLAN tags are 4-byte frame extensions that contain
a VLAN identifier as well as other information.
For more information on VLANs, see the FortiGate VLANs and VDOMs Guide .
Destination IP /Mask Enter the destination IP address and netmask for the route.
To create a default route, set the IP and netmask to 0.0.0.0.
Gateway Enter the IP address of the next hop router to which the route directs traffic.
For an Internet connection, the next hop routing gateway routes traffic to
the Internet.
Distance The administration distance or relative preferability of the route. An
administration distance of 1 is most preferred.