We have an older network (please don't say it, i been pushing to upgrade it for years) consisting of 6 sites, 5 branches and 1 Head Office.
All the branches are meshed to the head office network via permanent VPN's (handled by Cisco PIX's). The branch sites do not have IP access to directly connect out to the internetand must pass through the head office network to where a proxy server and content management appliance resides. Each PC has the Proxy configuration set and it all works well.
Question is, i want to pull out the proxy server and put a new Sonicwall UTM solution between the PIX and network but to do this i will need to turn off the proxy settings in the browsers as no proxy servers will exist. The trouble is when doing this the browsers do not connect to the internet and do not seem to route through the head office network and back out the internet.
They seem to want to use the gateway of the branch router/PIX to which has rules to prevent access directly out through the Internet but i want the http traffic to flow through the head office network and through the UTM.
Hope that makes sense?