ZyXEL ZyWALL 5 User Guide - Page 170
What You Can Do in the WAN Screens, What You Need to Know About WAN
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Chapter 9 WAN Screens 9.1.1 What You Can Do in the WAN Screens • Use the General screen (Section 9.2 on page 172) to configure load balancing, route priority, and connection test settings for the ZyWALL. • Use the WAN 1 and 2 screens (Section 9.3 on page 182) to configure the WAN1 and WAN2 interfaces for Internet access on the ZyWALL. • Use the 3G (WAN2) screen (Section 9.4 on page 192 for 3G) to configure the WAN2 interface for Internet access on the ZyWALL. • Use the Traffic Redirect screen (Section 9.5 on page 197) to configure an alternative gateway. • Use the Dial Backup screen (Section 9.7 on page 199) to configure the backup WAN dialup 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. 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. 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). 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. 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. 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. The ZyWALL can balance the load between the two WAN interfaces (see Section 9.2.2 on page 177). 170 ZyWALL 5/35/70 Series User's Guide