[squid-users] Transparent proxy with Ubuntu 15.04 and Squid3

Jake snakyjake2 at hotmail.com
Thu Oct 1 19:15:58 UTC 2015

I have a Squid/Dansguardian proxy server that successfully works when
the client web browser is manually configured to use the proxy address:port.

What I want to do is configure a transparent proxy server, presuming I
wouldn't have to manually configure browsers.

My LAN environment diagram:

This is a home network environment with a cable modem, wifi router,
client web browsers, and I have added the proxy server as a virtualized
VMware server.

For the proxy server I have two virtual network cards on the same subnet:
eth0 (gateway and the proxy address)

Is it possible the proxy server can intercept traffic from the clients,
when the clients have direct access to the internet router? I don't
understand how traffic is "intercepted" in this diagram.

Do I need to change something on the router?

How do I configure for proxy transparency?

I've read some configurations, but they were confusing, or out of date,
or specialized without much explanation.


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