How To Configure A Cellular Interface - ZyXEL Communications ZyWALL USG Series Application Notes

Then you can configure firewall rules to apply specific security settings to this VPN zone.

1.3 How to Configure a Cellular Interface

Use 3G cards for cellular WAN (Internet) connections. See www.zyxel.com for a supported 3G card. In
this example you connect the 3G USB card before you configure the cellular interfaces but is also
possible to reverse the sequence.
Make sure the 3G device's SIM card is installed.
1
Connect the 3G device to one of the USG's USB ports.
2
Click Configuration > Network > Interface > Cellular. Select the 3G device's entry and click
3
Edit.
Enable the interface and add it to a zone. It is highly recommended that you set the Zone to WAN to
4
apply your WAN zone security settings to this 3G connection. Leaving Zone set to none has the USG
not apply any security settings to the 3G connection. Enter the PIN Code provided by the cellular 3G
service provider (0000 in this example).
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