ZyXEL Communications NBG410W3G User Manual page 131

Table 22 NETWORK > WAN > 3G (WAN 2) (continued)
LABEL
Enable Multicast
Multicast Version
Enable Budget
Control
Time Budget
Data Budget
Reset time and
data budget
counters on
Reset time and
data budget
counters
Actions when
over budget
NBG410W3G Series User's Guide
DESCRIPTION
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.
Choose None (default), IGMP-V1 or IGMP-V2. IGMP (Internet Group Multicast
Protocol) is a session-layer protocol used to establish membership in a Multicast
group – it is not used to carry user data. 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 set a monthly limit for the user account of the installed 3G
card. You must insert a 3G card before you enable budget control on the ZyXEL
Device.
You can set a limit on the total traffic and/or call time. The ZyXEL Device takes the
actions you specified when a limit is exceeded during the month.
Select this check box and specify the amount of time (in hours) that the 3G
connection can be used within one month.
If you change the value after you configure and enable budget control, the ZyXEL
Device resets the statistics.
Select this check box and specify how much downstream and/or upstream data (in
Mbytes) can be transmitted via the 3G connection within one month.
Select Download to set a limit on the downstream traffic (from the ISP to the
ZyXEL Device).
Select Upload to set a limit on the upstream traffic (from the ZyXEL Device to the
ISP).
Select Download/Upload to set a limit on the total traffic in both directions.
If you change the value after you configure and enable budget control, the ZyXEL
Device resets the statistics.
Select the date on which the ZyXEL Device resets the budget every month. If the
date you selected is not available in a month, such as 30th or 31th, the ZyXEL
Device resets the budget on the last day of the month.
This button is available only when you enable budget control in this screen.
Click this button to reset the time and data budgets immediately. The count starts
over with the 3G connection's full configured monthly time and data budgets. This
does not affect the normal monthly budget restart.
Specify the actions the ZyXEL Device takes when the time or data limit is
exceeded.
Select Log to create a log.
Select Alert to create an alert. This option is available only when you select Log.
If you select Log, you can also select recurring every to have the ZyXEL Device
send a log (and alert if selected) for this event periodically. Specify how often (from
1 to 65535 minutes) to send the log (and alert if selected).
Select Allow to permit new 3G connections or Disallow to drop/block new 3G
connections.
Select Keep to maintain the existing 3G connection or Drop to disconnect it.
You cannot select Allow and Drop at the same time.
If you select Disallow and Keep, the ZyXEL Device allows you to transmit data
using the current connection, but you cannot build a new connection if the existing
connection is disconnected.
Chapter 6 WAN Screens
131