Advanced Modem Setup; At Command Strings - ZyXEL Communications ZYWALL 2 PLUS User Manual

Chapter 8 WAN Screens
Table 37 NETWORK > WAN > Dial Backup (continued)
LABEL
RIP Direction
Broadcast Dial
Backup Route
Enable Multicast
Multicast Version
Budget
Always On
Configure Budget
Allocated Budget
Period
Idle Timeout
Apply
Reset

8.11 Advanced Modem Setup

8.11.1 AT Command Strings

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.
158
DESCRIPTION
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.
Select this check box to forward the backup route broadcasts to the WAN.
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.
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.
Select this check box to have the dial backup connection on all of the time.
Select this check box to have the dial backup connection on during the time that
you select.
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.
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).
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).
Click Apply to save your changes back to the ZyWALL.
Click Reset to begin configuring this screen afresh.
ZyWALL 2 Plus User's Guide