How to configure ASA IPS, which is connected to the Internet

Hello guys,.

I am a beginner in the Concept ASA IPS and that my company HAS an ASA 5520.

Currently, ASA has been connected to the router connected ISP and internet acting as a firewall to control the traffic which

is integrated with Websense URL filtering.

Can you please let me know what all should we expected to configure IPS in this scenario, and what is the IPS feature.

What is the main function of the IPS?

Grateful to your messages.

Kind regards

KA.

KA;

The main function of the AIP - SSM in your ASA 5520 is to perform deep inspection packet and signature matching to detect traffic potential of achievement within your network.  If this traffic is detected, the AIP - SSM denying traffic to cross your ASA.  Here is a link to a brief overview of the product:

http://www.Cisco.com/go/aipssm

First, you must configure the ASA to divert traffic to the AIP - SSM for inspection, it is shown here:

http://www.Cisco.com/en/us/docs/security/IPS/7.0/Configuration/Guide/CLI/cli_ssm.html

So, you want to make sure that background basket interface (GigabitEthernet0/1) is added to a virtual sensor on the AIP - SSM for allow the inspections to occur.

You want to make sure that the signature on the AIP - SSM definitions are up-to-date.  This ensures the most accurate protection from the perspective of the AIP - SSM.  This will require an active license be installed on the AIP - SSM.

Then, you most likely want to monitor events generated by the AIP - SSM.  To do this, Cisco offers a free entry-level called IPS Manager Express (IME) solution.  You can learn more and download IME here:

http://www.Cisco.com/go/IME

You will want to monitor EMI to learn that the potential risks of security in network traffic crossing your infrastructure.  When you experience events for which you would like to understand better, you can site IntelliShield visist Cisco for further investigation:

http://www.Cisco.com/security

Details here, can also be extended within the IME event view.

Use of an IPS will be a continuous monitor and learn phase in order to ensure that you are aware of traffic expected and unexpected, and that the appropriate response can be applied.  This is something which is different in each environment, so it is not a simple white paper on how to perform these actions.

Scott

Tags: Cisco Security

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