Problem getting Bria to Register using external IP, Mitel 3300 and Sophos. Do I need a MBG or can I route things with Sophos?

Problem getting Bria to Register using external IP, Mitel 3300 and Sophos. Do I need a MBG or can I route things with Sophos? 

We host our mitel 3300, here and internally Bria registers just fine, but once we point it towards our external IP it can't register.  

  • Hi Kody and welcome to the UTM Community!

    It sounds like you need a DNAT or Full NAT rule, but your question assumes too much knowledge of Bria and Mitel.  What internal IP works and where are you when you attempt to register via the external IP?

    Cheers - Bob