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Wccp redirection for waas on same platform as wccp for websense?

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just wondering if anyone knows if a Cisco router or switch can handle wccp redirection enabled for both waas and some other web content filtering appliance using a different service group?
seems like the priority value would come into play determining which service group gets handled first?
we currently do WCCP for WaaS on our 3945s.
I am going to advocate to my customer that we separate this out for CPU load issues, config complexity issues, IOS issues, etc... but the question is going to come up - "can we do WCCP for different applications on our Catalyst 3750 core switch, or our 3945 WAN routers?"
Thanks,
Paul

Answers

Hi Paul,
Yes, it's technically possible to have WCCP redirection for several services even in those devices that don't support setting the priority. However, in this case, both WAAS and Websense need to redirect HTTP traffic, and that's what makes things complicated.
Assuming you first want to send the traffic to Websense and then to WAAS, I would recommend doing the WAAS redirection only on the WAN link (with one service inbound and the other outbound). You can then configure Web-cache redirection inbound on the client vlan and, a service for the return traffic (I'm not sure if this is required for websense), inbound on the interface where the WAE is connected (with a redirect-list to match only the return direction)
Even if it's possible to have both redirections in the same device, if possible, I would strongly suggest you to either use different devices for the redirection or to make them mutually exclusive (for example, not sending HTTP to WAAS), otherwise, if you make a small mistake with the configuration, you can end up with a redirection loop.
Regards
Daniel

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