Chapter 34 VLAN Isolation
GS2220 Series User’s Guide
314
C HAPTER 34
VLAN Isola tio n
This chapter shows you how to configure the Switch to prevent communications between ports in a
VLAN.
34.1 VLAN Iso la tio n O ve rvie w
Vlan Isolation allows you to do port isolation within a VLAN in a simple way. You specify which ports in a
VLAN is not isolated by adding it to the promiscuous port list. The Switch automatically adds other ports
in this VLAN to the isolated port list and blocks traffic between the isolated ports. A promiscuous port can
communicate with any port in the same VLAN. An isolated port can communicate with the promiscuous
ports only.
Note: You can have up to one VLAN Isolation rule for each VLAN.
Fig ure 239 VLAN Isolation Example
Note: Make sure you keep at least one port in the promiscuous port list for a VLAN with VLAN
Isolation enabled. Otherwise, this VLAN is blocked from the whole network.
34.2 Co nfig uring VLAN Iso la tio n
Click Adva nc e d Applic a tio n > Vla n Isola tio n in the navigation panel to display the screen as shown.
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