1)   PC Inventory Advisor 3.95.1722
Network Inventory Advisor is an agent-free solution for PC network inventory. It excellently performs remote agentless scanning of Windows, Mac OS X and Linux and builds custom inventory reports.

 2)   Nsauditor Network Security Auditor 2.4
Nsauditor is a network security scanner that allows to audit and monitor network for possible vulnerabilities,checks methods that a hacker might use to attack it. Over 45 network tools for scanning,sniffing,enumerating and gaining access to machines.
network audit, network auditing, network scanner, network security, network tools, network software, net tools, network monitoring, port scan, network utils,