ZyXEL Vantage CNM User Guide - Page 110

Chapter 5 Device Network Settings Table 31 Device Operation > Device Configuration > Network > WAN Backup > Advanced (Prestige) (continued) LABEL DESCRIPTION Primary/ Secondary Phone Number Type the first (primary) phone number from the ISP for this remote node. If the primary phone number is busy or does not answer, your device dials the secondary phone number if available. Some areas require dialing the pound sign # before the phone number for local calls. Include a # symbol at the beginning of the phone numbers as required. AT Command Initial String Type the AT command string to initialize the WAN device. Consult the manual of your WAN device connected to your dial backup port for specific AT commands. Advanced Modem Click the Edit button to display the Advanced Modem Setup Setup screen and edit the details of your dial backup setup. TCP/IP Options Enable SUA Network Address Translation (NAT) allows the translation of an Internet protocol address used within one network to a different IP address known within another network. Enable RIP RIP Direction SUA (Single User Account) is a subset of NAT that supports two types of mapping: Many-to-One and Server. When you select this option the device will use Address Mapping Set 255 in the SMT. Select this check box to turn on RIP (Routing Information Protocol), which allows a router to exchange routing information with other routers. RIP (Routing Information Protocol) allows a router to exchange routing information with other routers. The RIP Direction field controls the sending and receiving of RIP packets. Choose Both, In Only or Out Only. When set to Both or Out Only, the device will broadcast its routing table periodically. RIP Version When set to Both or In Only, the device will incorporate RIP information that it receives. The RIP Version field controls the format and the broadcasting method of the RIP packets that the device sends (it recognizes both formats when receiving). Choose RIP-1, RIP-2B or RIP-2M. Enable Multicast Version RIP-1 is universally supported; but RIP-2 carries more information. RIP-1 is probably adequate for most networks, unless you have an unusual network topology. Both RIP-2B and RIP-2M sends the routing data in RIP-2 format; the difference being that RIP-2B uses subnet broadcasting while RIP-2M uses multicasting. Multicasting can reduce the load on non-router machines since they generally do not listen to the RIP multicast address and so will not receive the RIP packets. However, if one router uses multicasting, then all routers on your network must use multicasting, also. Select this check box to turn on IGMP (Internet Group Multicast Protocol). IGMP is a network-layer protocol used to establish membership in a Multicast group - it is not used to carry user data. 110 Vantage CNM User's Guide