As a test of whether a 3G cellular modem could replace the WIFI network connection at Manitou Forest Observatory, I've setup a titan DSM in my office, with a Cradlepoint CTR350 router and a Verizon USB720 modem. The modem uses an external antenna (6" dipole) in the window of my office.
Crontab entries check the status of the ethernet and Verizon link, and can power cycle the router if necessary:
# Only run router_check.sh if net_check.sh succeeds to avoid power cycling modem if the problem is with t he ethernet connection 5,35 * * * * net_check.sh eth0 192.168.0 192.168.0.1 && router_check.sh 8 www.eol.ucar.edu www.google.com # Every 4 hours, run router_check.sh by itself, in case the router needs # power cycling to get the ethernet working 10 */4 * * * router_check.sh 8 www.eol.ucar.edu www.google.com
Rsync transfers from the Titan to FLAB are running at about 61 KB/sec.
sent 294 bytes received 5998216 bytes 61523.18 bytes/sec total size is 16029060 speedup is 2.67
Transfers the other way are about 85 KB/sec:
sent 5998221 bytes received 214 bytes 85084.18 bytes/sec total size is 16029060 speedup is 2.67