ZyXEL ZyWALL 5 User Guide - Page 182
The WAN1 and WAN2 Screen
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Chapter 9 WAN Screens Table 40 Load Balancing: Spillover (continued) LABEL DESCRIPTION WAN Interface to Local Host Mapping Timeout Select this option to have the ZyWALL send all of a local computer's traffic through the same WAN interface for the period of time that you specify (1 to 600 seconds). This is useful when a redirect server forwards a local user's request for a file and informs the file server that a particular WAN IP address is requesting the file. If the user's subsequent sessions came from a different WAN IP address, the file server would deny the request. Time Frame You can set the ZyWALL to get the measured bandwidth using the average bandwidth in the specified time interval. Enter the time interval between 10 and 600 seconds. Send traffic to secondary WAN when primary WAN bandwidth exceeds Specify the maximum allowable bandwidth on the primary WAN. Once this maximum bandwidth is reached, the ZyWALL sends the new session traffic that exceeds this limit to the secondary WAN. The ZyWALL continues to send traffic of existing sessions to the primary WAN. 9.3 The WAN1 and WAN2 Screen To change your ZyWALL's WAN ISP, IP and MAC settings, click NETWORK > WAN and then the WAN > WAN 1 or WAN 2 (on a ZyWALL with two WAN Ethernet interfaces). The screen differs by the encapsulation. " The WAN 1 and WAN 2 IP addresses of a ZyWALL with multiple WAN interfaces must be on different subnets. WAN IP Address Assignment Every computer on the Internet must have a unique IP address. If your networks are isolated from the Internet, for instance, only between your two branch offices, you can assign any IP addresses to the hosts without problems. However, the Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of IP addresses specifically for private networks. Table 41 Private IP Address Ranges 10.0.0.0 - 10.255.255.255 172.16.0.0 - 172.31.255.255 192.168.0.0 - 192.168.255.255 You can obtain your IP address from the IANA, from an ISP or have it assigned by a private network. If you belong to a small organization and your Internet access is through an ISP, the ISP can provide you with the Internet addresses for your local networks. On the other hand, if you are part of a much larger organization, you should consult your network administrator for the appropriate IP addresses. 182 ZyWALL 5/35/70 Series User's Guide