Aqeel,
The answer to your query will cover a few pages if not more.
If you are deploying the S170 for the first time (new purchase), you need to contact your vendor or Cisco partner to provide you with guideline and assistance with the deployment. To start with, some information has to be collected about the users, current infrastructure, etc. in order to help design the security policy in the S170.
Regards,
Donny
