[squid-users] MITM the MITM

Amos Jeffries squid3 at treenet.co.nz
Fri Jan 7 08:33:06 UTC 2022


On 7/01/22 06:26, Grant Taylor wrote:
> On 1/4/22 9:56 AM, Will BMD wrote:
>> I'm not aware of WCCP, but I'll look into it.
> 
> In short, the Web Cache Communications Protocol, "... specifies 
> interactions between one or more routers (or Layer 3 switches) and one 
> or more web-caches ...".
> 
> Link - Web Cache Communications Protocol (WCCP)
>   - 
> https://www.cisco.com/c/en/us/tech/content-networking/web-cache-communications-protocol-wccp/index.html 
> 
> 
> WCCP can be pressed into service between an in-path device (usually L3) 
> and a cache.  As such, I would hope ~> expect that the pseudo L3 
> firewall can do it's work while using WCCP to allow a backend proxy do 
> the actual caching, et la.
> 


FYI, WCCP is one way of routing client traffic to Squid where that Squid 
is doing interception.

The Squid wiki has a whole section on how to setup both router/switch 
and Squid ends of the WCCP. 
<https://wiki.squid-cache.org/ConfigExamples/#Interception>


HTH
Amos


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