Never assign v4 IPs ending in .255 even within range.

controller/SqliteNetworkController.cpp

@@ -1742,6 +1742,8 @@ NetworkController::ResultCode SqliteNetworkController::_doNetworkConfigRequest(c
 					for(uint32_t k=ipRangeStart,l=0;(k<=ipRangeEnd)&&(l < 1000000);++k,++l) {
 						uint32_t ip = (ipRangeLen > 0) ? (ipRangeStart + (ipTrialCounter % ipRangeLen)) : ipRangeStart;
 						++ipTrialCounter;
+						if ((ip & 0x000000ff) == 0x000000ff)
+							continue; // don't allow addresses that end in .255
 
 						for(std::vector< std::pair<uint32_t,int> >::const_iterator r(routedNetworks.begin());r!=routedNetworks.end();++r) {
 							if ((ip & (0xffffffff << (32 - r->second))) == r->first) {