ZyXEL ZyWALL 5 User Guide - Page 196
Use Fixed IP Address, IGMP-V1, IGMP-V2, Download, Upload, Download/Upload, LABEL, DESCRIPTION
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Chapter 9 WAN Screens Table 45 NETWORK > WAN > 3G (WAN 2) (continued) LABEL DESCRIPTION Idle Timeout This value specifies the time in seconds that elapses before the ZyWALL automatically disconnects from the ISP. WAN IP Address Assignment Get automatically Select this option If your ISP did not assign you a fixed IP address. This is the from ISP default selection. Use Fixed IP Address Select this option If the ISP assigned a fixed IP address. My WAN IP Address Enter your WAN IP address in this field if you selected Use Fixed IP Address. Advanced Setup Enable NAT (Network Address Translation) Network Address Translation (NAT) allows the translation of an Internet protocol address used within one network (for example a private IP address used in a local network) to a different IP address known within another network (for example a public IP address used on the Internet). Select this checkbox to enable NAT. For more information about NAT see Chapter 22 on page 435. Enable Multicast Select this check box to turn on IGMP (Internet Group Management 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 Choose None (default), IGMP-V1 or IGMP-V2. IGMP (Internet Group Management 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 inter-operability between IGMP version 2 and version 1, please see sections 4 and 5 of RFC 2236. Enable Budget Control 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 ZyWALL. You can set a limit on the total traffic and/or call time. The ZyWALL takes the actions you specified when a limit is exceeded during the month. Time Budget 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 ZyWALL resets the statistics. Data Budget Select this check box and specify how much downstream and/or upstream data (in Mega bytes) 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 ZyWALL). Select Upload to set a limit on the upstream traffic (from the ZyWALL 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 ZyWALL resets the statistics. Reset time and data budget counters on Select the date on which the ZyWALL resets the budget every month. If the date you selected is not available in a month, such as 30th or 31th, the ZyWALL resets the budget on the last day of the month. Reset time and data budget counters 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. 196 ZyWALL 5/35/70 Series User's Guide