I have a main and branch office. The branch office has a flaky internet connection and I'd like to let users in that office surf the internet using gateway (or proxy) in our main office.
I have a 192.168.3.x - 255.255.255.0 network in branch office with an astaro security gateway (router - firewall) at 192.168.3.254.
This astardo has 3 eth connections:
Internal (192.168.3.x) Wifi Bridge (192.168.255.x) Public (Internet - Flaky)
On the other end of Wifi bridge I have main office network: 10.0.0.x I can ping without problems from one network to the other and I successfully configured a squid transparent proxy in main office. I can surf the internet perfectly adding the correct proxy (10.0.0.254) in branch office browsers but I'd like to find a way that involves less administrative effort.
I thought about getting rid of the proxy and set up a Zeroshell gateway but I have little experience about this kind of work so an idea from an expert would be lovely.