Dynamic Names; Sms Overview - Sierra Wireless AirLink RV50 Series User Manual

Rev 1 Dec. 17
• mypage is the subdomain or server name associated with the device,
computer, or device registered with mydomain.com
mypage.mydomain.com
This would be the same as above, but with the addition of the country code. In
this example, the country code (.ca) is for Canada.
Tip: A URL (Universal Resource Locator) is different from a domain name in that it also
provides information on the protocol used by a web browser to contact that address such
http://www.sierrawireless.com
as
domain name, but http://, the protocol identifier, is what makes the whole thing a URL.

Dynamic Names

When an IP address is not expected to change, the DNS server can indicate to all
queries that the address can be cached and not looked up for a long period of
time. Dynamic DNS servers, conversely, have a short caching period for the
domain information to prevent other Internet sites or queries from using the old
information. Since the IP address of a device with a dynamic account can change
frequently, if the old information was used (e.g., with a DNS server that indicates
the address can be cached for a long period of time) when the IP address
changed, the domain would no longer point to the new and correct IP address of
the device.
If your AirLink gateway is configured for Dynamic IP when it first connects to the
Internet, it sends an IP change notification to the IP Manager. The IP Manager
acknowledges the change and updates the Dynamic DNS server. The new IP
address is then the address for your device's configured name.
When your device IP address has been updated in IP Manager, it can be
contacted by name. If the IP address is needed, use the domain name to
determine the IP address.
Note: The fully qualified domain name of your AirLink gateway will be a subdomain of the
domain used by the IP Manager server.

SMS Overview

AirLink gateways can:
• Receive commands via SMS message and send responses, even when the
device does not have a data connection (for example, you can provision a
device via SMS without having a data connection)
• Act as an SMS gateway for a device connected to a local interface
Note: To use SMS with your AirLink gateway, you must have an account with SMS enabled.
187
Services Configuration
. www.sierrawireless.com is a fully qualified
41111088