Set Up The 3G/Lte Interface On The Zywall/Usg; Set Up The Trunk On The Zywall/Usg - ZyXEL Communications ZyWALL 110 Handbook

Note: This example includes weighted load balancing (Weighted Round Robin) so that
most of your Internet traffic is handled by ISP connected to wan1 before it fails
over to 3G/LTE.
All network IP addresses and subnet masks are used as examples in this article.
Please replace them with your actual network IP addresses and subnet masks. This
example was tested using USG310 (Firmware Version: ZLD 4.13).

1.2.1 Set Up the 3G/LTE Interface on the ZyWALL/USG

Connect a compatible mobile broadband USB device to use a cellular connection.
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In the ZyWALL/USG, go to CONFIGURATION > Network > Interface > Cellular, the connected
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device will automatically display in the Cellular Interface Summary. Click Activate and then the
Apply button at the bottom of this page.
Figure 18 CONFIGURATION > Network > Interface > Cellular > Activate
The default Connectivity method is Nailed-Up. The connection should always be up after you
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activate the cellular interface. You can click Edit and go to the Connectivity section to clear the
Nailed-Up check box to have the ZyWALL/USG to establish the connection only when there is
traffic.
Figure 19 CONFIGURATION > Network > Interface > Cellular > Connect
Figure 20 CONFIGURATION > Network > Interface > Cellular > Edit

1.2.2 Set Up the Trunk on the ZyWALL/USG

In the ZyWALL/USG, go to CONFIGURATION > Network > Interface > Trunk > User
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Configuration > Add Trunk, configure a Name for you to identify the Trunk profile and set the
Load Balancing Algorithm field to be the Weighted Round Robin.
Add wan1 and enter 3 in the Weight column. Add wan2 and enter 2 in the Weight column. Add
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cellular1, change Mode to be the Passive mode, enter 1 in the Weight column. Click OK to
return to the Configuration screen.
Chapter 1 Set Up Your Network
ZyWALL/USG Series User's Guide
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