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GridRouter™ User Guide
15
5 Provisioning the GridRouter
The provisioning processes must complete to ensure that the GridRouter can receive remote
communication.
5.1 Cellular Modem
GSM modems have SIM cards and can be activated and provisioned through the cellular carrier without
any interaction from the GridRouter. CDMA modems must be activated by the carrier and then
provisioned by the GridRouter, done by dialing a phone number. This provisioning process for CDMA
modems is necessary for downloading and updating the Preferred Roaming List (PRL). The GridRouter
queries the modem routinely and updates the PRL when necessary.
5.2 Dynamic DNS
(optional)
If the GridRouter modem has a dynamic IP address, it is recommended to setup dynamic DNS so that
communication can be initiated remotely. The default hostname for the GridRouter is based upon its 10-
digit serial number: sgr{serial#}. An example hostname is sgr3509f00001. The default DNS server
hostname is
dyndns.org
.
An example DNS setup with
www.dyndns.com
uses a hostname of “
sgr3509f00001.dyndns.org
” and a
DNS server address of “
update.dyndns.org
”.