czmq provides bindings for the ØMQ core API that hides the differences between different versions of ØMQ.

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 subnets and supernets. It is also intended to be a teaching tool and presents the subnetting results as easy-to-understand binary values.

parprouted is a daemon for transparent IP (Layer 3) proxy ARP bridging. Unlike standard bridging, proxy ARP bridging can bridge Ethernet networks behind wireless nodes. Normal layer 2 bridging does not work between wireless nodes because wireless does not know about MAC addresses used in the wired Ethernet networks. This daemon can also be useful for making transparent firewalls.

Blueman is a Bluetooth management utility using the Bluez D-Bus backend. It is designed to be easy to use for most common Bluetooth tasks.

This package provides the NBD (Network Block Devices) client and server. It allows you to use remote block devices over a TCP/IP network.

Restbed is a comprehensive and consistent programming model for building applications that require seamless and secure communication over HTTP.

PuTTY is a graphical text terminal client. It supports SSH, telnet, and raw socket connections with good terminal emulation. It can authenticate with public keys and Kerberos single-sign-on. It also includes command-line SFTP and older SCP implementations.

httping measures how long it takes to connect to a web server, send an HTTP(S) request, and receive the reply headers. It is somewhat similar to ping, but can be used even in cases where ICMP traffic is blocked by firewalls or when you want to monitor the response time of the actual web application stack itself.

FRRouting (FRR) is an IP routing protocol suite which includes protocol daemons for BGP, IS-IS, LDP, OSPF, PIM, and RIP.

This package contains a variety of tools for dealing with network configuration, troubleshooting, or servers. Utilities included are:

arping

Ping hosts using ARP.

clockdiff

Compute time difference between network hosts using ICMP TSTAMP messages.

ninfod

Daemon that responds to IPv6 Node Information Queries.

ping

Use ICMP ECHO messages to measure round-trip delays and packet loss across network paths.

rarpd

Answer RARP requests from clients.

rdisc

Populate network routing tables with information from the ICMP router discovery protocol.

tftpd

Trivial file transfer protocol server.

tracepath

Trace network path to an IPv4 or IPv6 address and discover MTU along the way.

Nanomsg is a socket library that provides several common communication patterns. It aims to make the networking layer fast, scalable, and easy to use. Implemented in C, it works on a wide range of operating systems with no further dependencies.

The THC IPv6 Toolkit provides command-line tools and a library for researching IPv6 implementations and deployments. It requires Linux 2.6 or newer and only works on Ethernet network interfaces.

This package provides CAN utilities in the following areas:

• Basic tools to display, record, generate and replay CAN traffic

• CAN access via IP sockets

• CAN in-kernel gateway configuration

• CAN bus measurement and testing

• ISO-TP (ISO15765-2:2016 - this means messages with a body larger than eight bytes) tools

• Log file converters

• Serial Line Discipline configuration for slcan driver

With this package you can monitor and filter incoming requests for network services. It includes a library which may be used by daemons to transparently check connection attempts against an access control list.

Danga::Socket is an abstract base class for objects backed by a socket which provides the basic framework for event-driven asynchronous IO, designed to be fast. Danga::Socket is both a base class for objects, and an event loop.

RTMPdump is a toolkit for RTMP streams. All forms of RTMP are supported, including rtmp://, rtmpt://, rtmpe://, rtmpte://, and rtmps://.

bmon is a monitoring and debugging tool to capture networking-related statistics and prepare them visually in a human-friendly way. It features various output methods including an interactive curses user interface and a programmable text output for scripting.

Asio is a cross-platform C++ library for network and low-level I/O programming that provides developers with a consistent asynchronous model using a modern C++ approach.

GNU MAC Changer is a utility for viewing and changing MAC addresses of networking devices. New addresses may be set explicitly or randomly. They can include MAC addresses of the same or other hardware vendors or, more generally, MAC addresses of the same category of hardware.

IO::Socket::INET6 is an interface for AF_INET/AF_INET6 domain sockets in Perl.

iwd is a wireless daemon for Linux that aims to replace WPA Supplicant. It optimizes resource utilization by not depending on any external libraries and instead utilizing features provided by the Linux kernel to the maximum extent possible.

Asio is a cross-platform C++ library for network and low-level I/O programming that provides developers with a consistent asynchronous model using a modern C++ approach.

YAZ is a C/C++ library for information retrieval applications using Z39.50, SRU or Solr Web Service protocols for information retrieval. It also offers ZOOM API implementing them.

Nload is a console application which monitors network traffic and bandwidth usage in real time. It visualizes the in- and outgoing traffic using two graphs, and provides additional info like total amount of transferred data and min/max network usage.