New Post: Connecting to Specific Port and then Send the login commands

By using a telnet library, this library is just for SSH.

Quick google search result:
http://www.codeproject.com/Articles/19071/Quick-tool-A-minimalistic-Telnet-library

Hint: Avoid telnet! It's totally unsecured! No crypto at all. Your login can be easily sniffed from the network.