ZyXEL Communications ZYWALL USG 20 Manual page 246

Chapter 11 Interfaces
Table 57 Configuration > Network > Interface > Cellular > Add (continued)
LABEL
Get
Automatically
Use Fixed IP
Address
IP Address
Assignment
Metric
Device Settings
Device
Selection
Band Selection This field appears if you selected a 3G device that allows you to select
Network
Selection
Budget Setup
Enable Budget
Control
246
DESCRIPTION
Select this option If your ISP did not assign you a fixed IP address.
This is the default selection.
Select this option If the ISP assigned a fixed IP address.
Enter the cellular interface's WAN IP address in this field if you
selected Use Fixed IP Address.
Enter the priority of the gateway (if any) on this interface. The
ZyWALL decides which gateway to use based on this priority. The
lower the number, the higher the priority. If two or more gateways
have the same priority, the ZyWALL uses the one that was configured
first.
Select the 3G card to use with this entry or select auto to have the
ZyWALL automatically detect the type of card.
the type of network to use. Select the type of 3G service for your 3G
connection. If you are unsure what to select, check with your 3G
service provider to find the 3G service available to you in your region.
Select auto to have the card connect to an available network. Choose
this option if you do not know what networks are available.
You may want to manually specify the type of network to use if you
are charged differently for different types of network or you only have
one type of network available to you.
Select GPRS / EDGE (GSM) only to have this interface only use a
2.5G or 2.75G network (respectively). If you only have a GSM
network available to you, you may want to select this so the ZyWALL
does not spend time looking for a WCDMA network.
Select UMTS / HSDPA (WCDMA) only to have this interface only
use a 3G or 3.5G network (respectively). You may want to do this if
you want to make sure the interface does not use the GSM network.
Home network is the network to which you are originally subscribed.
Select Home to have the 3G device connect only to the home
network. If the home network is down, the ZyWALL's 3G Internet
connection is also unavailable.
Select Auto (Default) to allow the 3G device to connect to a network
to which you are not subscribed when necessary, for example when
the home network is down or another 3G base station's signal is
stronger. This is recommended if you need continuous Internet
connectivity. If you select this, you may be charged using the r ate of a
different network.
Select this to set a monthly limit for the user account of the installed
3G card. 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.
ZyWALL USG 20/20W User's Guide