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ASA Content Filtering

We're looking at replacing our web filtering appliance and consolidating functionality with an ASA Content Security Edition and I was wondering if anyone can give me some details on how exactly the web filtering works and whether it seemed effective.

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Re: ASA Content Filtering

To filter traffic has these advantages:

It can help reduce security risks and prevent inappropriate usage.

It can provide greater control over the traffic that passes through the security appliance.

Note: Because URL filtering is CPU-intensive, the use of an external filtering server ensures that the throughput of other traffic is not affected. However, based on the speed of your network and the capacity of your URL filtering server, the time required for the initial connection can be noticeably slower when traffic is filtered with an external filtering server.

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a008088517b.shtml

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