Vlan Interfaces - ZyXEL Communications ZYWALL USG 1000 - EDITION 2 Manual

Chapter 13 Interfaces
Table 67 Configuration > Network > Interface > Cellular > Add (continued)
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13.6 VLAN Interfaces

A Virtual Local Area Network (VLAN) divides a physical network into multiple
logical networks. The standard is defined in IEEE 802.1q.
Figure 251 Example: Before VLAN
In this example, there are two physical networks and three departments A, B, and
C. The physical networks are connected to hubs, and the hubs are connected to
the router.
Alternatively, you can divide the physical networks into three VLANs.
Figure 252 Example: After VLAN
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C
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