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This module provides functions to deal with IPv4/IPv6 addresses. The module can be used as a class, allowing the user to instantiate IP objects, which can be single IP addresses, prefixes, or ranges of addresses. There is also a procedural way of accessing most of the functions. Most subroutines can take either IPv4 or IPv6 addresses transparently.

Net::IPv4Addr provides functions to parse IPv4 addresses both in traditional address/netmask format and in the new CIDR format. Methods for calculating the network and broadcast address, and also to check if a given address is in a specific network also exist.

Net::Telnet::Cisco::IOS (NTCI) is an extension of Joshua Kereos's Net::Telnet::Cisco module and provides an easy way to manage and monitor Cisco IOS devices. I'll mention this a lot, but make sure you read up on Net::Telnet::Cisco for a lot of information.

This is a PERL interface to the Zenoss Monitoring System JSON API. It allows the ability to execute all available functions provided by the Zenoss API programmatically. Anything you could do from the Zenoss interface can be achieved via this module. This is a full service implementation, providing the construction of the call to the API and the handling of the response.

Jmx4Perl is here to connect the Java and Perl Enterprise world by providing transparent access to the Java Management Extensions (JMX) from the perl side. It uses a traditional request-response paradigma for performing JMX operations on a remote Java Virtual machine.

ipcalc takes an IP address and netmask and calculates the resulting broadcast, network, Cisco wildcard mask, and host range. By giving a second netmask, you can design sub- and supernetworks. It is also intended to be a teaching tool and presents the results as easy-to-understand binary values. Enter your netmask(s) in CIDR notation (/25) or dotted decimals (255.255.255.0). Inverse netmasks are recognized.

IPplan is a free (GPL), web based, multilingual, IP address management and tracking tool written in php4, simplifying the administration of your IP address space. IPplan goes beyond IP address management including DNS administration, configuration file management, circuit management and storing of hardware information. IPplan can handle a single network or cater for multiple networks and customers with overlapping address space.

The subcalc utility is used for subnet calculation and IPv6 DNS PTR record generation. subcalc takes command line arguments in a similar format to ifconfig(8) so the synopsis should be familiar to the user. Given an address family, address and a netmask/prefix length, subcalc will calculate the number of hosts and address ranges of the specific network.

Ethereum is a community-driven project aiming to decentralize the internet and return it to its democratic roots. It is a platform for building and running applications which do not need to rely on trust and cannot be controlled by any central authority. This is the Go implementation of Ethereum y/w paper

CTorrent Control Server (CTCS) is an interface for monitoring and managing Enhanced CTorrent clients. It can manage allocation of bandwidth, provide status information, and allow changes to the running configuration of each client. Communication with CTorrent is via a TCP connection, and the user interface is a web browser.