Better RFC1918 network protection PR:		6278 Reviewed by:	phk Submitted by:	Ruslan Ermilov <ru@ucb.crimea.ua>
Better RFC1918 network protection
PR:		6278
Reviewed by:	phk
Submitted by:	Ruslan Ermilov <ru@ucb.crimea.ua>

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase