I have a custom application that accesses a remote range of IP addresses, lets say for example 206.0.0.0 – 206.255.255.255, this is UDP based traffic. The issue is, Sonicwall NSA has been configured to block all proxy-based access and is detecting this traffic as "PROXY-ACCESS Encrypted Key Exchange — UDP Random Encryption(UltraSurf) sid=7" and is blocking the application. How would I go about getting this traffic unfiltered access to that ip range? I tried adding address object for that range and creating an access rule to allow it through, but it still seems to be blocked. Any assistance is welcome, thanks.
Firewall – Sonicwall App Control Advanced
applicationblockingfirewallsonicwall
Best Answer
I was able to allow iOS updates while blocking PROXY-ACCESS. I had to allow HTTP Proxy under PROXY-ACCESS.