VoIP Traffic Through Secondary WAN Port

Hi All. Firstly, thank you for your time to help! Let me give you a quick breakdown of my network and then I will explain what I am trying to do. I have a XGS 2100 running on v20 SFOS. I have 2 ISP...
Microsoft Internet Explorer PNG tRNS chuck size 1 information disclosure attempt

hello, I got this intrusion attempt for the first time. just don't know what to do. I looked for any recent downloads and browsing history, and asked the user if he plugged any device to the computer...
"Multiple failed login attempts for WAN-facing portals on Sophos Firewall" - How to get IP

Hello, We've seen a message on the Sophos Firewall WEB-UI leading us to this article: "Multiple failed login (brute force) attempts for WAN-facing portals on Sophos Firewall" https://support.sophos...
Port scan detection internal network

Hi, Is there any option to detect internal network port scans from within the network or networks? Like for example using nmap or netcat or others from inside the local network, not from a wan source...
I cannot allow traffic from an external ip and a specific port to my local server. I tried differents things but it doesn't work.

Dear tEam, I cannot allow traffic from an external ip and a specific port to my local server. I tried differents things but it doesn't work.