Dynamic Dns - Sierra Wireless AirLink ES440 User Manual

Field
Load Custom
Private Key
Custom Private
Key Name
Rev 1 Nov.14
Description
This field only appears when the Custom Certificate field is set to Enable.
Allows you to enter a custom private key (Some restrictions apply; see
Certificate on page 156 for details.)
To load a custom private key:
1. Click Load Private Key.
2. Click Browse... and navigate to the private key file.
3. Click Upload file to device.
4. Once you have uploaded the custom certificate and the custom private key,
click Apply and reboot the device.
This field only appears when the Custom Certificate field is set to Enable.
Displays the name of the private key.

Dynamic DNS

Dynamic DNS allows an AirLink device WAN IP address to be published either to
a proprietary Sierra Wireless dynamic DNS service called IP Manager, or to an
alternate 3rd party Mobile Network Operator.
Whether you have one Sierra Wireless AirLink device or multiple devices, it can
be difficult to keep track of the current IP addresses especially if the addresses
are not static but change every time the devices connect to the cellular network. If
you need to connect to a specific gateway, or the device behind it, it is much
easier when you have a domain name (car54.mydomain.com, where are you?).
Reasons to Contact or Connect to a Device:
• Requesting a location update from a delivery truck
• Contacting a surveillance camera to download logs or survey a specific area
• Triggering an oil derrick to begin pumping
• Sending text to be displayed by a road sign
• Updating the songs to be played on a juke box
• Updating advertisements to be displayed in a cab
• Remote accessing a computer, a PLC, an RTU, or other system
• Monitoring and troubleshooting the status of the device itself without needing
to bring it in or go out to it.
A dynamic IP address is suitable for many Internet activities such as web
browsing, looking up data on another computer system, for data only being sent
out, or for data only being received after an initial request (also called Mobile
Originated). However, if you need to contact the AirLink device directly, a device
connected to the AirLink device, or a host system using your AirLink device (also
called Mobile Terminated), a dynamic IP will not give you a reliable address to
contact (since it may have changed since the last time it was assigned).
Services Configuration
Custom
157