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LANCOM Reference Manual LCOS 3.50 ̈ Chapter 10: Virtual LANs (VLANs)
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Virtual LANs (VLANs)
Management and user traffic on a LAN
Several hot spots are installed on an university campus, so that students
equipped with notebooks and WLAN cards have access to the Internet and to
the server of the library. The hot spots are connected to the university LAN. Via
this LAN the administrators also access the base stations to carry out several
management tasks via SNMP.
By setting up a virtual LAN between the base stations and the administrator’s
switch, management data is shielded against all “public” traffic on the LAN.
Different organisations on one LAN
The flexibility of the modern world of work raises new challenges for admin-
istrators concerning planning and maintenance of network structures. The
occupation of the rooms by leaseholders changes permanently in public office
buildings, and also inside of a company, teams are often newly assembled. In
both cases, the individual units must have an independent, protected LAN.
Data traffic without
VLAN tag
VLAN ID=3