Digi IX20, Руководство пользователя

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Interfaces Wide Area Networks (WANs)
IX20 User Guide 73
4. Save the configuration and apply the change:
(config)> save
Configuration saved.
>
5. Type exit to exit the Admin CLI.
Depending on your device configuration, you may be presented with an Access selection
menu . Type quit to disconnect from the device.
Using Ethernet devices in a WAN
The IX20 device has Ethernet devices, named ETH1 ETH2 . You can use these Ethernet interfaces as a
WAN when connecting to the Internet, through a device such as a cable modem:
By default, the WAN/ETH1 Ethernet device is configured as a WAN, named ETH1 , with both DHCP and
NAT enabled and using the External firewall zone. This means you should be able to connect to the
Internet by connecting the WAN/ETH1 Ethernet port to another device that already has an internet
connection.
part of a bridge named LAN that is used by the ETH2 interface, which uses the Internal firewall zone.
If desired, you can assign these Ethernet devices to a WAN.
Using cellular modems in a Wireless WAN (WWAN)
The IX20 supports one cellular modem, named Modem , which is included in a preconfigured Wireless
WAN, also named Modem .
The cellular modem can have only one active interface at any one time. For example, Modem can have
either SIM1 or SIM2 up at one time.
Typically, you configure SIM1 of the cellular modem as the primary cellular interface, and SIM2 as the
backup cellular interface. In this way, if the IX20 device cannot connect to the network using SIM1, it
automatically fails over to SIM2. IX20 devices automatically use the correct cellular module firmware
for each carrier when switching SIMs.
Configure cellular modem APNs
The IX20 device uses a preconfigured list of Access Point Names (APNs) when attempting to connect
to a cellular carrier for the first time. After the device has successfully connected, it will remember the
correct APN. As a result, it is generally not necessary to configure APNs. However, you can configure
the system to use a specified APN.
To configure the APN:

WebUI
1. Log into the IX20 WebUI as a user with full Admin access rights.