firewall checker

  1. Stephen Hellriegel

    Upon reboot of 3CX PBX instance, must run firewall check to enable incoming call routing

    System Configuration: 3CX PBX system, installed as the "3CX linux distro" from 3CX. 3CX PRO version 15.5.6354.2 2 SBC, (raspberry PI3), each with about a dozen phones (yealink T21P E2 ,1 BLF per phone) The SBCs and the PBX are all on separate global IP networks (and ISPs). When I reboot the...

  2. Cannot reach PBX. Mapping does not match 5060.

    Hi, Firewall-Check fails: Mapping does not match *PORT*. (see attached picture). BUT: I am able to reach the dashboard and webclient from the internet! with: https://*domainname*:5001/#/app/ my situation: - Router: Unitymedia Connect Box (Product by Compal) - Got a ipv6/DS-Lite connection...

  3. Firewall Checker Internal Server Error

    Good morning, 3cx v15.5 (Elastix 5) give me this error when i try to do a Firewall Check
  4. Tim H

    Firewall Check and a new Cisco RV340

    I recently replaced my Cisco router because of Errors I was receiving. I selected a RV 340 because I have successfully used this series of a cisco router with errors on other 3CX deployments. I have confirmed that SIP ALG is disabled on the firewall configuration screen and configured all of...

  5. 3cx Firewall tests failed

    Hi, we have a SIP trunk that is a bridge to our main office. When I ran the firewall tests, does it detect the port forwarding through our public IP address or through our bridge? I kept getting port does not match errors. Thanks.

  6. SBC Required Ports

    Just put the SBC on a Windows machine. The installer created Windows firewall rules to open port 5060. I can get the SBC to communicate with the cloud server, but only when I turn off Windows Firewall completely. With it on, phones connecting through the SBC won't connect to the cloud server...

  7. Network setup, two nics, 3CX tunnel problem

    Hi, we have problems to setup our 3CX environment. Our current setup: LAN: 172.21.3.0 WAN: 192.168.1.0 3CX has two nics, one for LAN (172.21.3.1) and one for WAN (192.168.1.1) FQDN is defined Local DNS resolves FQDN to 172.21.3.1 Router (192.168.1.254) is forwarding all relevant ports to...

  8. 3CX Firewall - testing 3CX SIP Server... failed

    Hello, I have installed 3CX with standard license yesterday. It is working okay, but when checking firewall in 3CX, I get an error as following. Why this happens? resolving 'stun.3cx.com'... done resolving 'stun2.3cx.com'... done resolving 'stun3.3cx.com'... done testing 3CX SIP Server...

  9. Sonicwall and Disable Source Port Remapping

    Have a quick question. In the configuration guide https://www.3cx.com/blog/voip-howto/sonicwall-firewall-configuration/ it says "Edit the Advanced TAB and make sure that “Disable Source Port Remap” is disabled." but then shows it checked. Should the Disabled Source Port Remap be checked...
3CX Logo Footer Copyright © Sitemap Privacy
Top Bottom