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LibreNMS is an autodiscovering PHP/MySQL/SNMP based network monitoring which includes support for a wide range of network hardware and operating systems including Cisco, Linux, FreeBSD, Juniper, Brocade, Foundry, HP and many more. LibreNMS has grown out of a lack of easy to configure network monitoring platforms. 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.

CDPSnarf is a network sniffer exclusively written to extract information from CDP packets. It provides all the information a "show cdp neighbors detail" command would return on a Cisco router and even more. A feature list follows: Time intervals between CDP advertisements Source MAC address CDP Version TTL Checksum Device ID Software version Platform Addresses Port ID Capabilities Duplex Save packets in PCAP dump file format Read packets from PCAP dump files Debugging information (using the "-d" flag) Tested with IPv4 and IPv6 Source: https://github.com/Zapotek/cdpsnarf

A plugin for Nagios to query common NetSNMP-exported information: -- disk status; -- processes status; -- swap status; -- load averages; -- anything else exported via NetSNMP's exec or extend directives.

This is a small Nagios plugin written in PERL and designed to monitor the state of FreeBSD GEOM devices (specifically mirrors and striped volumes) from Nagios.

A Nagios/Icinga plugin to monitor ZFS Pools (zpools). It is based on "Check Solaris ZFS Pools" but is completely rewritten.

Netwag is a graphical front end for netwox. Netwag permits to easily : - search amongst tools proposed in netwox - construct command line - run tools - keep an history of commands

Observium is an autodiscovering PHP/MySQL/SNMP based network monitoring which includes support for a wide range of network hardware and operating systems including Cisco, Linux, FreeBSD, Juniper, Brocade, Foundry, HP and many more. Observium has grown out of a lack of easy to configure network monitoring platforms. 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.

Net::Netmask parses and understand IPv4 CIDR blocks. It's built with an object-oriented interface. Nearly all functions are methods that operate on a Net::Netmask object.

SNMP::Info gives an object oriented interface to information obtained through SNMP. This module is geared towards network devices. Subclasses exist for a number of network devices and common MIBs. The information may be coming from any number of MIB files and is very vendor specific. SNMP::Info provides you a common method for all supported devices. Adding support for your own device is easy, and takes little much SNMP knowledge. The module is not limited to network devices. Any MIB or device can be given an objected oriented front-end by making a module that consists of a couple hashes. See EXTENDING SNMP::INFO.

Pancho was written with the goal of allowing network administrators make a change to a group of Cisco routers without being required to log into each host. Pancho also provides the flexibility to allow admins to use its function against a single host, a select group or the entire whole. In addition to changes to current configurations on remote routers, pancho is also capable of archiving router configurations manually or through automated runs. Support is provided for Cisco, Foundry, Nortel/Alteon, Avaya, or Dell PowerConnect devices.