How to connect to Wi-Fi on my iphone using the internet at work?

My work computer is windows 7 professional. I was wondering if there was a way i could connect to that internet on my phone. I tried cmd and i guess i don't have the correct login/password once i typed the ip into my browser.

Majority of work places have an IT department that restricts access to using thie internet for all kinds of reasons most likely they want people working and not surfing the net. A lot of computers you work on at work can be set to only access the web on certain sites thus preventing access to say Facebook. Most of the new phones by ATT and Verizon allow acess using the 4 G but if your on a data plan like a lot of people are say 2 Gb a month you eat through that fast