• Sophos UTM, Network Protections, Rules -- Order does not count???

    Does the order of Sophos UTM "Network Protection" firewall rules matter at all?!?!?! On my sophos utm, the "Network Protection" firewall rules are as follows (summarizing) Top Rule = deny PrivateIP#1... any protocol... to any external ip (block…

  • Sophos UTM9 NAT Method

    Hi everyone, im thinking about buying a Sophos UTM9 Appliance and i wanted to know which method of nat it is using (Full-Cone, Symmetric, Restricted-Cone or Port-Restricted Cone). Sadly I didnt find any information on this topic. Can someone tell…

  • Email is leaving the incorrect interface, despite NAT rules in place.

    Hello all, I'm seeing a lot of bounces on the mail manager, and I'm hoping you can help me narrow down the cause. I've got 3 WAN interfaces and a bunch of extra public IP addresses assigned to them. x.x.x.83 is the default ip address of WAN-X2 and the…

  • IPS blocking VoIP Packet

    We recently discovered that our UTM was blocking packets that we needed for VoIP. RTP packets were being discarded because IPS detected a UDP Flood Attack. The issue was difficult to find because the UTM was only discarding a relativly small number…
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