User manual

Network Setup
43
Note
The switches’ ports can not be configured individually; a switch is configured with a single
function only (e.g., LAN switch, DMZ switch).
SG560, SG565 and SG580: Multifunction Ports
The SG560, SG565 and SG580 have generically named Ethernet ports (ports A1, A2,
A3, A4 and B). By default, switch A functions as a regular LAN switch, with network
traffic passing freely between its ports. Typically, port B is used as your primary Internet
connection.
However, switch A’s ports can be configured individually to perform separate functions,
e.g. port A2 can be a configured to connect to a second LAN, port A3 can be configured
as a DMZ port, and port A4 can be configured as a secondary Internet connection.
These per-port configuration scenarios are accomplished using VLANs (virtual local area
networks). For documentation concerning the advanced use of the VLAN capability of
your SG unit, refer to the sections entitled VLANs and Port based VLANs towards the
end of this chapter.
All Other SG Models: Fixed-function Ports
All other SG units have specifically labeled ports for specific functions.
The port labeled LAN may only perform the functions described in the section entitled
LAN Connection, the port labeled Internet or WAN may only perform the functions
described in the section entitled Internet Connection.
Note
On SG570 and SG575 models, the DMZ port is special in that it may be configured with
any kind of connection, i.e. LAN, DMZ, Guest or Internet. These connection types are
discussed during the course of this chapter.