Observium is an autodiscovering network monitoring system focused primarily on Cisco and Linux networks but includes support for a wide range of network hardware and operating systems. Observium has grown out of a lack of easy to use NMSes. It is intended to provide a more navigable interface to the health and performance of your network. Its design goals include collecting as much historical data about devices as possible, being completely autodiscovered with little or no manual intervention, and having a very intuitive interface.
The WiKID Strong Authentication System is a highly scalable, secure two-factor authentication system. It is simple to implement and maintain, allows users to be validated automatically, requires no hardware tokens, has a simple API for application support (via Ruby, PHP, Java, COM, Python, etc.), supports multiple domains, and supports replication for fault tolerance and scalability. It also supports mutual /host and transaction authentication, wireless tokens only domains, locked tokens (to your PC), anti-keystroke logger keypad PIN entry, etc.
BGPHist is a tool that receives MP-BGP updates, decodes them, and writes them to a database for logging and monitoring purposes. It supports not only Internet routes, but also IPv4 VPN, IPV6 VPN, and L2VPN. It sounds text output, MySQL databases, and Oracle databases. For the MySQL backend, there is also a simple PHP frontend. It could be used to monitor and log an ISP's customer activity for Internet and VPNs, as a passive BGP looking glass, or as a backend for some external monitoring and accounting system.
TrafficMaker is a packet generator tool that allows you to create custom network packets and send them via any network interface. It can be used to generate junk/malformed random packets, STP, LACP, OAM, and LLDP layer 2 bridging/slow protocol packets, RIPv1, RIPv2, IGMPv1, IGMPv2, OSPF, IS-IS, EIGRP, and HSRP routing packets, SIP and RTP VOIP packets, ICMP, CDP and HSRP Cisco protocol packets, IPv4 TCP packets with various TCP flag options (SYN, ACK, Push, Reset, Urgent, Finish), IPv4 and IPv6 UDP packets, and RADIUS and Kerberos authentication packets. Inline context-specific per-page help is provided.
Xplico is an IP traffic decoder that extracts data from an Internet traffic capture. From a pcap file, it can extracts each email (POP, IMAP, and SMTP protocols), all HTTP content, VoIP calls (SIP, RTP, H323, MEGACO, MGCP), IRC, MSN, and so on. It isn't a packet sniffer or a network protocol analyzer, but rather an IP/Internet traffic decoder or network forensic analysis tool (NFAT).
LibreNMS is an autodiscovering PHP/MySQL-based network monitoring system forked from Observium. It aims to be easy to use and painless to deploy, and to support monitoring of a wide range of devices. Observium's license changed to a modified QPL license in May 2012, then was split into free and commercial versions. The aim of LibreNMS is to continue to create a usable NMS, but with a community focus and GPL licensing.
PacketFence is a fully supported, trusted network access control (NAC) system. It includes a captive portal for registration and remediation, centralized wired and wireless management, 802.1X support, layer-2 isolation of problematic devices, and integration with the Snort IDS and the Nessus vulnerability scanner. It can be used to effectively secure networks, from small to very large heterogeneous networks.
PacketFence Zero Effort NAC (ZEN) is a network access control (NAC) system. It supports registration of new network devices, detection of abnormal network activities, isolation of problematic devices, remediation through a captive portal, registration-based and scheduled vulnerability scans, VLAN isolation with VoIP support (even in heterogeneous environments) for multiple switch vendors, support for 802.1X through a FreeRADIUS module, wireless integration with FreeRADIUS, DHCP fingerprinting, and more. It consists of a fully installed and preconfigured version of PacketFence inside a VMWare image.