Issue with 3CX gateway being repeatedly blacklisted — request to identify offending IP

[samehJABRI]

Hello,

Our client has two networks:

Network 1 for PCs

Network 2 for VoIP

The VoIP gateway is often blacklisted by 3CX, which blocks access to the management interface. When we check, the gateway address is already blacklisted, but the logs do not show which IP is causing this issue.

Is there a way to display the exact IP address that triggers the blacklist or any other supplimentary information?

Best regards

 

[SteveITS]

Is the VoIP gateway providing NAT to devices behind it? Then the source is hidden. You could allow that IP though, then it won't be blocked.

If the logs don't show any failed logins you could try increasing log verbosity. It could be a phone, cell phone, web client, etc.