Chapter 8 Interface
ZyWALL USG 50-H User’s Guide
148
8.1.2 What You Need to Know About Interfaces
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.
• Layer-3 virtualization (IP alias, for example) is a kind of interface.
Types of Interfaces
You can create several types of interfaces in the ZyWALL.
• Setting interfaces to the same port role forms a port group. This creates a hardware
connection between the physical ports at the layer-2 (data link, MAC address) level.
•
Ethernet interfaces
are the foundation for defining other interfaces and network policies.
RIP and OSPF are also configured in these interfaces.
•
PPP interfaces
support Point-to-Point Protocols (PPPoE or PPTP). ISP account settings
are included.
•
Cellular interfaces
are for 3G WAN connections via a connected 3G device.
•
WLAN interfaces
are for wireless LAN (IEEE 802.11b/g/n) connections.
•
VLAN interfaces
receive and send tagged frames. The ZyWALL automatically adds or
removes the tags as needed. Each VLAN can only be associated with one Ethernet
interface.
•
Bridge interfaces
create a software connection between Ethernet or VLAN interfaces at
the layer-2 (data link, MAC address) level. Unlike port groups, bridge interfaces can take
advantage of some security features in the ZyWALL. You can also assign an IP address
and subnet mask to the bridge.
•
Virtual interfaces
provide additional routing information in the ZyWALL. There are
three types:
virtual Ethernet interfaces
,
virtual VLAN interfaces
, and
virtual bridge
interfaces
.
•
Trunks
manage load balancing between interfaces.
Trunks have many characteristics that are specific to each type of interface. See
for details. The other types of interfaces--Ethernet, VLAN, bridge, PPPoE/PPTP, and
virtual--have a lot of similar characteristics. These characteristics are listed in the following
table and discussed in more detail below.
Table 40
Ethernet, VLAN, Bridge, PPP, and Virtual Interfaces Characteristics
CHARACTERISTICS ETHERNET
ETHERNET
WIRELESS
VLAN
BRIDGE
PPP
VIRTUAL
CELLULAR
Name*
wan1, wan2
lan1, lan2,
dmz
wlan
vlan
x
br
x
ppp
x
**
cellularx
Configurable Zone
No
No
Yes
Yes
Yes
No
No
No
IP Address
Assignment
Содержание ZyWall USG 50-H Series
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Страница 34: ...Chapter 1 Introducing the ZyWALL ZyWALL USG 50 H User s Guide 34...
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Страница 250: ...Chapter 12 Zones ZyWALL USG 50 H User s Guide 250...
Страница 280: ...Chapter 16 ALG ZyWALL USG 50 H User s Guide 280...
Страница 286: ...Chapter 17 IP MAC Binding ZyWALL USG 50 H User s Guide 286...
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Страница 313: ...Chapter 19 IPSec VPN ZyWALL USG 50 H User s Guide 313 Figure 238 VPN IPSec VPN VPN Connection Edit IKE...
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Страница 358: ...Chapter 22 SSL User Application Screens ZyWALL USG 50 H User s Guide 358...
Страница 368: ...Chapter 24 L2TP VPN ZyWALL USG 50 H User s Guide 368...
Страница 394: ...Chapter 25 L2TP VPN Example ZyWALL USG 50 H User s Guide 394...
Страница 395: ...395 PART V Application Patrol Application Patrol BWM 397...
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Страница 429: ...Chapter 27 ADP ZyWALL USG 50 H User s Guide 429 Figure 359 Profiles Traffic Anomaly...
Страница 432: ...Chapter 27 ADP ZyWALL USG 50 H User s Guide 432 Figure 360 Profiles Protocol Anomaly...
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Страница 462: ...Chapter 29 Addresses ZyWALL USG 50 H User s Guide 462...
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Страница 484: ...Chapter 32 AAA Server ZyWALL USG 50 H User s Guide 484...
Страница 506: ...Chapter 34 Certificates ZyWALL USG 50 H User s Guide 506...
Страница 510: ...Chapter 35 SSL Application ZyWALL USG 50 H User s Guide 510...
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Страница 568: ...Chapter 38 Logs ZyWALL USG 50 H User s Guide 568 Figure 464 Maintenance Log Log Setting Edit System Log...
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Страница 586: ...Chapter 41 Reboot ZyWALL USG 50 H User s Guide 586...
Страница 596: ...Chapter 43 Product Specifications ZyWALL USG 50 H User s Guide 596...
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Страница 636: ...Appendix A Log Descriptions ZyWALL USG 50 H User s Guide 636...
Страница 640: ...Appendix B Common Services ZyWALL USG 50 H User s Guide 640...
Страница 646: ...Appendix C Importing Certificates ZyWALL USG 50 H User s Guide 646...