ZyXEL Communications XGS-4528F, User Manual, Page: 315 / 491

XGS-4526/4528F/4728F User’s Guide
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Private VLAN
This chapter shows you how to configure the Switch to prevent communications
between ports in a VLAN.
33.1 Private VLAN Overview
Private VLAN allows you to do port isolation within a VLAN in a simple way. You
specify which port(s) 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 port(s) only.
Note: You can have up to one private VLAN rule for each VLAN.
Figure 152 Private VLAN Example
Note: Make sure you keep at least one port in the promiscuous port list for a VLAN
with private VLAN enabled. Otherwise, this VLAN is blocked from the whole
network.
Isolated ports: 2 ~ 6
Promiscuous port: 10
VLAN 123
2
6
10