Urgent Help Needed! Save a damsel in distress!
 

Hi all,

Need assistance from the Networking Gurus, specifically on an enquiry on firewalls.

Present Situation:
I currently have a Sonicwall TZ180 configured to protect my network that is on an ADSL line.

Problem:
The company has decided to switch over to a dedicated lease line and will thus, result in different public IP addresses for all the computers in my network.

Question:
1) What changes will I need to make to the configuration on my firewall?
2) Do I need to reset the firewall to default settings before making these changes?

I am really at a loss here because I know next to nothing about firewalls thus any form of help will be appreciated. Thank you very much!