Re: [squid-users] WCCP load balancing and TPROXY fully transparent interception

On mån, 2008-11-03 at 16:57 +0800, Bin Liu wrote:
> Hi,
>
> I'm going to deploy multiple squid servers in a ISP for HTTP traffic
> caching. I'm now considering using WCCP for load balancing and TPROXY
> for fully transparent interception.
>
> Here is the problem. As far as I know, Cisco WCCP module does not
> maintain connection status, it just redirect packets based on their IP
> addresses and ports. I'm just wondering if it's possible that one
> squid server(squid A, for example) sends a outbound request, but the
> router redirects the corresponding inbound response to another
> squid(squid B)? Then that's totally messed.

The redirection in both directions must match for this to work. See the
wiki for a configuration example

http://wiki.squid-cache.org/ConfigExamples/FullyTransparentWithTPROXY

Regards
Henrik