Справочник Пользователя для ZyXEL Communications 5 Series
Chapter 9 WAN Screens
ZyWALL 5/35/70 Series User’s Guide
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9.1.1 What You Can Do in the WAN Screens
• Use the General screen (
) to configure load balancing, route
priority, and connection test settings for the ZyWALL.
• Use the WAN 1 and 2 screens (
) to configure the WAN1 and
WAN2 interfaces for Internet access on the ZyWALL.
• Use the 3G (WAN2) screen (
for 3G) to configure the WAN2
interface for Internet access on the ZyWALL.
• Use the Traffic Redirect screen (
) to configure an alternative
gateway.
• Use the Dial Backup screen (
) to configure the backup WAN dial-
up connection.
9.1.2 What You Need to Know About WAN
Encapsulation Method
Encapsulation is used to include data from an upper layer protocol into a lower layer protocol.
To set up a WAN connection to the Internet, you need to use the same encapsulation method
used by your ISP (Internet Service Provider). If your ISP offers a dial-up Internet connection
using PPPoE (PPP over Ethernet) or PPPoA, they should also provide a username and
password (and service name) for user authentication.
To set up a WAN connection to the Internet, you need to use the same encapsulation method
used by your ISP (Internet Service Provider). If your ISP offers a dial-up Internet connection
using PPPoE (PPP over Ethernet) or PPPoA, they should also provide a username and
password (and service name) for user authentication.
WAN IP Address
The WAN IP address is an IP address for the ZyWALL, which makes it accessible from an
outside network. It is used by the ZyWALL to communicate with other devices in other
networks. It can be static (fixed) or dynamically assigned by the ISP each time the ZyWALL
tries to access the Internet.
outside network. It is used by the ZyWALL to communicate with other devices in other
networks. It can be static (fixed) or dynamically assigned by the ISP each time the ZyWALL
tries to access the Internet.
If your ISP assigns you a static WAN IP address, they should also assign you the subnet mask
and DNS server IP address(es) (and a gateway IP address if you use the Ethernet or ENET
ENCAP encapsulation method).
and DNS server IP address(es) (and a gateway IP address if you use the Ethernet or ENET
ENCAP encapsulation method).
3G
3G (Third Generation) is a digital, packet-switched wireless technology. Bandwidth usage is
optimized as multiple users share the same channel and bandwidth is only allocated to users
when they send data. It allows fast transfer of voice and non-voice data and provides
broadband Internet access to mobile devices.
optimized as multiple users share the same channel and bandwidth is only allocated to users
when they send data. It allows fast transfer of voice and non-voice data and provides
broadband Internet access to mobile devices.
Multiple WAN Features
You can use a second connection for load sharing to increase overall network throughput or as
a backup to enhance network reliability.
a backup to enhance network reliability.
The ZyWALL 70 or ZyWALL 35 has two WAN ports. You can connect one port to one ISP
(or network) and connect the other to a second ISP (or network). When the ZyWALL 5 is in
router mode, you can optionally insert a 3G card to add a second WAN interface.
(or network) and connect the other to a second ISP (or network). When the ZyWALL 5 is in
router mode, you can optionally insert a 3G card to add a second WAN interface.
).