WCCP protocol can be much more interesting than the two commands needed for the CCIE exam. In this lab we will deploy a basic end-to-end solution using IOS 15.2S and the well known open-source solution Squid v3.1 as the content engine.
WCCP version2 is deployed in the lab.
WCCP enables the router to transparently intercept client traffic destined to Internet and redirect it to a local content engine. Client browsers doesn’t point to the content engine as proxy.
Cisco and the content engine communicate through unidirectional point-to-point tunnels (either layer2 or GRE ).
The tunnel interfaces are automatically created in order to process outgoing GRE-encapsulated traffic for WCCP.
Short definitions of some related concepts:
|Forward proxy||Filter access to Internet and reduces BW related to Internet static resources like regular updates, big file downloads…|
|Reverse proxy||Allows external users (ex: on Internet) to access internal servers. Generally supports…|
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