User guide

ALEOS 4.3.4 Software Configuration User Guide
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USB
The AirLink device is equipped with a USB port that increases the methods by
which you can send and receive data from a connected computer. You can set up
the USB port to work as either a virtual Ethernet port or a virtual serial port, or
you can disable it to prevent access by USB. A driver installation is required to
use the USB port in either mode.
Starting Ephemeral Port This field allows you to set the starting port range used by a LAN host as the source port
for over-the-air (OTA) destinations using NAT.
Note: This field is intended for advanced users only. In most cases, use the default
value.
The NAT for the LAN host uses a range of 1000 ports as source ports for OTA
destinations beginning with the configured Ephemeral port. Options are:
• 1024 (default)–64535
If you have a network with multiple LAN hosts that are sending data to the same server
and the server is not receiving data from one (or more) of the hosts, it may be because
the Mobile Network Operator has a WAN firewall that is blocking the ports used by the
NAT for over-the-air (OTA) destinations. This field enables you to avoid the blocked ports
by changing the source port range used to send the data. For example, some users have
found that changing the starting port to 42000 has resolved the issue.
Note: The ephemeral port setting does not affect any outbound traffic initiated by the
device such as GPS reports, serial PAD or Modbus, Events Reporting, Device Initiated
AVMS connection, etc.
Ethernet 1 Link Setting
Ethernet 2 Link Setting
Ethernet 3 Link Setting
Configures the Ethernet port speed and duplex setting
Most of the time you can leave the default setting and the device you are connecting
automatically negotiates the speed and duplex setting with the AirLink device. However,
if the connected device has a fixed setting, use this field to change the AirLink device
setting to match that of the connected device. The options are:
• Auto 100/10 (default)
• Auto 10 Mb only
• 100 Mb Full Duplex
• 100 Mb Half Duplex
• 10 Mb Full Duplex
• 10 Mb Half Duplex
If you have a GX Series device with a Dual Ethernet X-Card installed, ACEmanager
displays separate fields for each Ethernet port.
You can view the current speed and duplex setting on the Status > LAN window. See
page 55.
Field Description