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Re: tproxy with wccp

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Nah, thats not how WCCP interception works. It just sends the packets
to another server without IP source/destination rewriting..



Adrian

On Tue, Oct 23, 2007, Amos Jeffries wrote:
> pinky you wrote:
> >hello 
> >
> >I have problem with tproxy and WCCP , I guess it is
> >compatibility issue. (I am using Centos 5 and
> >iptables3.8)
> >
> >If anyone is using tproxy, please tell me the
> >following:
> >version of :
> >tproxy, 
> >iptables, 
> >kernel 
> >squid 
> >
> >and is there any trick when using wccp with tproxy ,
> >or it is the same as using it without tproxy. 
> 
> What little I know of both, makes me think they are in the overkill 
> category and possibly non-compatible on the same http_port.
>  WCCP being a silent? router redirection to a squid machine.
>  TProxy being a silent local-machine interception and spoof.
> 
> I don;t know enough details of wccp to be certain of this. But;
> By the time it get to local machines tproxy the traffic has already been 
> wccp re-routed from its original track and I would not expect tproxy to 
> work on it properly. I would expect to see squid spoofing the routers 
> address as source on outgoing requests instead of the client which 
> tproxy should spoof.
> 
> >one last question 
> >does tproxy4.1 (the latest version ) works with squid
> >2.6 , or squid support does not come yet 
> 
> tproxy4+ support has not yet been added to either version of squid.
> Henrik points out it should be easy, just nobody has had time or 
> inclination to look at it yet.
> 
> Amos

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