Cisco Clean Access (CCA) login script if you do not want to lose your tabs when you open a browser.
Developed only for Ubuntu (which does not require NAC Agent) and tested only at UCI.
Usage:
./cca.py <UCInetID>
This script is for educational purposes only, use it on your own risk.
PS: for more info about CCA: http://en.wikipedia.org/wiki/Cisco_NAC_Appliance