Getaddrinfo

NetStrain is a tool to measure practical data throughput between two machines over a TCP connection. It can be used for performance testing, stress/stability testing and to demonstrate various network effects. It supports both IPv4 and IPv6, provided the underlying system does. NetStrain is also... Platforms: *nix

libasyncns provides a C library for Linux/Unix for executing name service queries asynchronously. It is an asynchronous wrapper around getaddrinfo and getnameinfo from the libc. In contrast to GNUs asynchronous name resolving API getaddrinfo_a(), libasyncns does not make use of UNIX signals for... Platforms: *nix

TCPreen is a simple tool to monitor and analyze data transmitted between clients and servers through connection-oriented streams data such as a TCP sessions; it supports TCP over either IPv4 or IPv6. This tool focuses on the data stream (software/socket layer), not on the lower level transmission... Platforms: *nix

Socket6 is a Perl module for IPv6 related part of the C socket.h defines and structure manipulators. SYNOPSIS use Socket; use Socket6; @res = getaddrinfo(hishost.com, daytime, AF_UNSPEC, SOCK_STREAM); $family = -1; while (scalar(@res) >= 5) { ($family, $socktype, $proto, $saddr,... Platforms: *nix