NEXCOM IFA 1610 User Manual
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Copyright © 2014 NEXCOM International Co., Ltd. All Rights Reserved.
IFA 3610/IFA 2610/IFA 1610 User Manual
Chapter 1: The System Menu
15
ISDN
To configure the ISDN connection, the modem driver, phone numbers (the provider’s number and the number used to
dial out), as well as the username and password that have been assigned by the provider, and the authentication method
are needed (if unsure, keep the default PAP or CHAP). Also specify whether the IP address of the DNS should be assigned
automatically or set manually.
ANALOG/UMTS Modem
While the appliance supports most modern UMTS modems, some care is required when using them in conjunction with
the appliance. On one side, some UMTS modems are USB mass storage devices as well and usually register two devices
(e.g.,
/dev/ttyUSB0, /dev/ttyUSB1): In this case the first device /dev/ttyUSB0 is the modem, the second one is
the storage. These types of modem can cause problems when restarting the firewall because the appliance tries to boot
from the USB mass storage device. On the other side, some SIM cards require a personal identification number (PIN) to
work, but this is not supported. To allow those cards to work with the appliance, the PIN should be removed from the
card.
There are 2 sub-screens for this choice.
1. In the first one, specify to which serial port the modem is connected to and whether it is an analog modem or an
UMTS/HSDPA modem.
Hint: The
/dev/ttyS0 device is reserved for the serial console and is therefore not available as port for modems.
2. In the second one, configure the modem’s bit-rate, the dial-up phone number or access point name, the username
and password that have been assigned by the provider and the authentication method (if unsure, keep the default
PAP or CHAP). For UMTS modems it is also necessary to specify the access point name.
GATEWAY
The IP address of the default gateway - that is, the IP address of the gateway that connects the appliance to the Internet
or another untrusted network.
The common options are:
MTU
The MTU size of the packets send over the network.
Spoof MAC address with
Specify a custom MAC address for the RED interface. This setting is required for the proper failover of slave devices in an
HA setup. See High availability for more information about the RED address in HA setups.