How can I achieve IOS content filtering using a Cisco router

[Christopher Kofon]

Good day Everybody.

I would like to set up content filtering using IOS on my Cisco router. I already know how to do URL filtering but I want to restrict access to sites based on categories.

Is this possible without having to introduce an external device?

[Collin Clark]

Natively in IOS this is not possible. However you can configure CWS (Cisco Web Security). The router will forward web requests to a cloud based web security service.

http://www.cisco.com/en/US/prod/collateral/vpndevc/ps10142/ps11720/data_sheet_c78-729637.html