ZyXEL 2WG Betriebsanweisung

 Chapter 8 WAN and 3G Screens

ZyWALL 2WG User’s Guide

Use this screen to configure your advanced modem setup settings for the Dial Backup screen.

For regular telephone lines, the default Dial string tells the modem that the line uses tone 
dialing. ATDT is the command for a switch that requires tone dialing. If your switch requires 

pulse dialing, change the string to ATDP.
For ISDN lines, there are many more protocols and operational modes. Please consult the 
documentation of your TA. You may need additional commands in both Dial and Init strings. 

RIP Direction

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 ZyWALL will broadcast its routing table 

periodically. 
When set to Both or In Only, the ZyWALL will incorporate RIP information that it 

receives.

Broadcast Dial 

Backup Route

Select this check box to forward the backup route broadcasts to the WAN. 

Enable Multicast

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. 

Multicast Version

Select IGMP-v1 or IGMP-v2. IGMP version 2 (RFC 2236) is an improvement 

over version 1 (RFC 1112) but IGMP version 1 is still in wide use. If you would 

like to read more detailed information about interoperability between IGMP 

version 2 and version 1, please see sections 4 and 5 of RFC 2236. 

Budget

Always On

Select this check box to have the dial backup connection on all of the time. 

Configure Budget

Select this check box to have the dial backup connection on during the time that 

you select. 

Allocated Budget

Type the amount of time (in minutes) that the dial backup connection can be 

used during the time configured in the Period field. Set an amount that is less 

than the time period configured in the Period field. 

Period

Type the time period (in hours) for how often the budget should be reset. For 

example, to allow calls to this remote node for a maximum of 10 minutes every 

hour, set the Allocated Budget to 10 (minutes) and the Period to 1 (hour).

Idle Timeout

Type the number of seconds of idle time (when there is no traffic from the 

ZyWALL to the remote node) for the ZyWALL to wait before it automatically 

disconnects the dial backup connection. This option applies only when the 

ZyWALL initiates the call. The dial backup connection never times out if you set 

this field to "0" (it is the same as selecting Always On).

Apply

Click Apply to save your changes back to the ZyWALL.

Reset

Click Reset to begin configuring this screen afresh.

Table 43   NETWORK > WAN > Dial Backup (continued)