IP Security (IPSec) is mandatory for IPv6implementations. Given that IPv6 will be dominated by commercial off the shelf (COTS)software products, many in the DoD community will have a software encryption capability attheir disposal.
1 The lowest monthly average temperature in Fountain Hills for December is 54 degrees. 2  The most monthly precipitation in Fountain Hills occurs in January with 0 inches.  The air quality index in Fountain Hills is 48% worse than the national average.
Fountain Head (in Sumner County, TN) Populated Place Profile. Fountain Head (GNIS FID: 1284712) is a populated place located within the Commissioner District 2, a minor civil division (MCD) of Sumner County. The elevation of Fountain Head is 807 feet. Fountain Head appears on the Fountain Head U.S. Geological Survey Map. Sumner County is in the Central Time Zone (UTC -6 hours).