Packetfence ZEN is a trustworthy open source network http://www.aliyun.com/zixun/aggregation/38609.html "> Access control system (NAC). It supports registering new network devices, detecting unusual network activity, isolating problematic devices, correcting controlled ports, registering for Default vulnerability scans, VOIP support VLAN isolation (even in heterogeneous environments) multiple switch vendors, Support 802.1x through Freeradius module, Freeradius Wireless integration, DHCP fingerprint identification and so on.
Packetfence ZEN 3.3.1 This version supports the Packetfence 3.3.1 virtual institution build. Update role-based access Control (RBAC) support for multiple network vendors. Direct-insertion law enforcement has been simplified and has integrated many new improvements or corrections.
Software Information: http://www.packetfence.org/
Download Address: http://www.packetfence.org/download/releases.html