Dropbear SSH Server and Client - Dropbear is a relatively small SSH 2 server and client.
KiTTY - KiTTY is a fork from version 0.70 of PuTTY. It adds extra features to PuTTY.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.
Ethereal - Ethereal® is used by network professionals around the world for troubleshooting, analysis...
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
socat - socat is a relay for bidirectional data transfer between two independent data channels.