Sharing the burden of the IDS/IPS

Hi experts,

Since it is possible to implement some IDS features on routers and PIX, along with the ID is, in a network where all 3 of these devices exist, is it interesting to implement some features on routers and PIX IDS?

And, if so, what factors are to be considered in deciding what signatures are enabled on what device?

In this type of scenario, which are considered best practices?

Thank you very much

It is possible to do what you ask. Note that the signature on the IPS appliance is a bigger, more complete than other devices together. The exact mix depends on your network configuration. I would say a finer granularity of inspection closer you to your network. For example, the PIX can perform basic firewall functions and filter most of the low-level, floods and general port scans probe. Some routers are good for the limitation of the flow, the traffic shaping, etc. Then the IPS can inspect flows coming into this challenge, focusing on all traffic that could hurt you (beyond knocking on your front door of firewall). Of course, this is just a scenario. Some people can't stand not knowing what to try to knock on the front door. Others do not want the hassle of trying to reconstitute the papers from three different pieces of equipment so they put things in different orders, such as IOS IPS, PIX. Another focus of exploration is what device you can use as a blocking device, the PIX or IOS router (or IP addresses in the case of mode inline operation).

Cisco means the blueprint of network SECURITY as a job, starting point architecture. The entire library of SECURITY white papers can be found here:

http://www.Cisco.com/en/us/partner/NetSol/ns340/ns394/ns171/ns128/networking_solutions_package.html

Tags: Cisco Security

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