Need help with Firewall rules.

Question

Hi all. I'm new to UTM 9 as I have been using Untangle for the last 7 years. I was given a UTM220 by my employer and really want to get it up running correctly. I have installed the asg version and found a mod to use the display with my home license. 
 So far all appears to working well EXCEPT my wife cannot reach you employer via their VPN. DELL Sonicwall. 
 Any help would be greatly appreciated. In fact, any ideas you care to offer would be greatly appreciated. 
 
 Best regards, 
 Robert

DouglasFoster · Accepted Answer

If you are using it at home to learn it for business use, suggest reading all of the posts in the Wiki, plus 
 this post about parsing log files 
 https://community.sophos.com/products/unified-threat-management/f/management-networking-logging-and-reporting/100770/how-to-using-a-sql-database-to-interpret-utm-log-files 
 this post about port usage 
 https://community.sophos.com/products/unified-threat-management/f/general-discussion/100848/how-to-understand-utm-port-usage 
 and this post about web filtering 
 https://community.sophos.com/products/unified-threat-management/f/web-protection-web-filtering-application-visibility-control/101117/optimizing-web-proxy-lessons-learned 
 About SonicWall: 
 I think it uses VPN-over-SSL on a non-standard port. So you need to do one of the following in Web Filtering 
 (a) On the Misc tab, add the non-standard port to the allowed port list. This at least allows the traffic through. You may, however, need to do one of the following as well. 
 (b) Create a web filtering Exception object which disables all web filtering checks for that server. This keeps the traffic flowing through the web proxy logic, but without interruptions. 
 (c) As an alternative to (b), you could create a skiplist entry to bypass that server from Transparent Web proxy. If you are using both Standard and Transparent web proxies, it gets a little more complicated. The standard web bypass occurs in the proxy script (or proxy configuration), while the transparent web bypass occurs in the skip list. These exceptions mean that the traffic flows through the firewall instead of the web proxy, where a firewall rule might or might not be required. NOTE: When traffic flows through the web proxy, the firewall rules are not applied. 
 Some of these ideas are discussed in greater detail in the web filtering lessons learned document.