Chapter 11 Interfaces; Interface Overview; What You Can Do In This Chapter; What You Need To Know - ZyXEL Communications NXC5200 User Manual

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11.1 Interface Overview

Use these screens to configure the NXC's interfaces.
• Ports are the physical ports to which you connect cables.
• Interfaces are used within the system operationally. You use them in
configuring various features. An interface also describes a network that is
directly connected to the NXC. For example, You connect the LAN network to the
interface.
• Zones are groups of interfaces used to ease security policy configuration.

11.1.1 What You Can Do in this Chapter

• The Ethernet screens
interfaces. Ethernet interfaces are the foundation for defining other interfaces
and network policies.
• The VLAN screens
multiple logical networks. VLAN interfaces receive and send tagged frames. The
NXC automatically adds or removes the tags as needed..

11.1.2 What You Need to Know

The following terms and concepts may help as you read this chapter.
Interface Characteristics
Interfaces generally have the following characteristics (although not all
characteristics apply to each type of interface).
• An interface is a logical entity through which (layer-3) packets pass.
• An interface is bound to a physical port or another interface.
• Many interfaces can share the same physical port.
• An interface belongs to at most one zone.
• Many interfaces can belong to the same zone.
NXC5200 User's Guide
(Section 11.2 on page
(Section 11.3 on page 186) divide the physical network into
11
Interfaces
178) configure the Ethernet
177