tcp ip

Displays remote network computer IP, ICMP, TCP, UDP and Server statistics.

TansuTCP, Free TCP Trace Tool which forwards tcp packets to another server.

Ping IP and display current public and internal IP.

Block all communications with selected IP and IP ranges with ease.

Store a list of Ip Configurations that you can use to change your ip on the fly.

Lets you find your IP address, resolve hostnames to IP addresses using the DNS.

"Socksify" TCP and UDP connections at the network layer.

Displays the list of all currently opened TCP/UDP ports on your computer.

A free log monito/viewer for files,folders, event log, sql tables, rss, udp, tcp

LAN / TCP Network Performance Benchmark Utility for Windows