firewall checker

  1. Firewall errors after install of V20

    Hi all, I just did the upgrade from V18 to V20. After doing this, the system appears to be working but when I run the firewall check, I get the following errors. Everything was working successfully on V18. Not sure if this makes a difference but when I did the install, I forgot to change the...
    • DGZ
    • Thread
    • firewall checker sip alg detected full cone test failed
    • Replies: 7
    • Forum: Phone System / PBX

  2. Need HELP with v20 FQDN & Firewall Checker using Sonicwall

    Hello and good day peeps. I am having issues and need some assistance with getting the FQDN to resolve the 3CX server private IP, so it will remove the "red error message" on the admin login landing page. Also with getting a good clean firewall check from 3CX. I have combed through all of the...

  3. Migrate 3CX server with a new firewall with new public IP

    Hello; I am working on migrating/moving the current 3CX server (Linux) with a new firewall, in which a new public ip address will be used. With my initial test, I change the gateway ip address on 3CX server with the new firewall and completing the firewall checker test, it is all good. Except I...

  4. 3CX behind Palo Alto Firewall Config

    Hi all, I'm new here. Anyone here mind sharing your pan fw configuration so the firewall test on the 3CX dashboard will pass? I have followed the article on https://www.3cx.com/docs/manual/firewall-router-configuration/ But for some reason, it kept failing. Under my monitor tab, I see outbound...
  5. TheNickHess

    port 5060/5090 not working

    We are a nonprofit running 3cx on premise getting the following w fw check We have created temporary fw rules allowing all traffic and are still not getting results in order to get phones(some supported by 3cx, some not) working with FQDN - Interesting tidbit, my grandstream does work w...

  6. IP Addresses to whitelist for Firewall Check

    I have a client who wishes to lock down their firewall and restrict access to 3CX. I need to be able to complete the firewall check, so was wondering if there is a list of IP addresses I can whitelist? When I run the firewall check, at the start it says: resolving 'stun-au.3cx.com'... done...

  7. Firewall Check failed - Mapping does not match - Barracuda Networks

    Hello, I run 3CX 16.0.655 on premise on debian linux. The server is behind perimeter firewall of Barracuda Networks. The Firewall check fails for reasons I don't know IOS App/Android App work fine. Admin Works fine. Webclients have no AUDIO calling *777 or any other extension. Calls from to a...

  8. Firewall Checker Failed (Google Cloud) even with PBX Express Setup(?)

    Hello, I´ve stumbled upon other threads here with people having problems during their firewall test. In the end somebody from the 3CX Support team recommended to use PBX Express - which is exactly what we did but still receive many errors. Please see attached screenshot. Did we do something...

  9. 3CX firewall checker giving errors

    Hi, I’ve spoken with the team who manages our pfsense firewall here and we’ve opened all the necessary ports for the firewall checker, as listed below. The machine is in a network where NAT does not take place. The IP of the 3CX installation is the public IP. We can control the ports that can...
  10. ECOM GROUP (Mauritius)

    Firewall check ports remail closed for almost all port - on premise debian 9

    Hello, I am testing 3cx pro on debian 9 installed on a mini pc. Firewall check for port 9000 - 10998 appeared red and showing port mapping is xxx . 3CX sip server failed. is there anyone can help? I am using a Fiber internet connection , huawer router HG8245H , i tried to open port and still...

  11. Firewall Checker Stuck on Ports 5060 and 5090

    Using a MicroTik firewall. All the necessary port forwarding has been done as described on this page: https://www.3cx.com/docs/mikrotik-firewall-configuration/ I left the firewall check running overnight and this is where it got to:

  12. Firewall checker stalls after new firewall install

    We have just changed firewalls so wanted to make sure 3CX was working properly but when I try and run the firewall test it just stalls (has been running for like 20+ minutes with no progress). The detecting SIP ALG is reporting not detected but nothing else (ports 5060, 5090 or 9000+) have...

  13. Firewall check is failing 100% of ports, and no audio (both sides).

    I have 3CX newly installed on a Hyper-V VM behind my SonicWall router. I have all of the ports opened up, and I have manually tested some of these ports myself by using a port listener application and an online web tool, but they are open when I do open them. When I run the firewall checker...

  14. v16 & Ubiquiti EdgeRouter - FW ports 10600..10998 full cone test failed (only)

    Hi every body my config is : EdgeRouter X SFP v2.0.1 3CX 16.0.1581 hosted when run Firewall Checker, all test (also ALG) are OK except range 10600-10998... full cone test failed for each. I don't understand because the port fowarding is explicit as show in rules stats, rules are good...

  15. v16 Firewall in Dashboard

    I haven't had time to run the firewall checker during business hours, yet, but I checked the port list and it still showed v14 and v15. Is there a different list for v16? It shows a red exclamation icon in my dashboard since upgrading from v15.5SP6 to v16 last night. So far things are fine...

  16. Firewall Test Failing - All ports confirmed as forwarding

    Hi All, I am having trouble getting a 3CX install to pass the firewall tests. This is a snippet showing the fails: +-+-+-+-+-+-+-+-+-+-+-+-+ testing 3CX SIP Server... failed (How to resolve?) stopping service... done detecting SIP ALG... not detected testing port 55060... full cone test...
  17. Robertos

    Anyone passed FW full cone tests using Ubiquiti EdgeRouter ?

    Can't see any relevant config to set to pass the FW Full Cone tests cleanly ...

  18. Mapping does not match 5060. Mapping is 36884

    I just installed 3CX I am new to this. I run the inbuilt firewall checker and I get this error. Any ideas why? And how can I fix it? Thanks in advance.

  19. Firewall Checker - Ubiquiti Router

    This is my first time setting up the system on a Ubiguiti router. In the firewall checker, I am getting the "Full Cone Test Failed". The system seems to be working fine and I can make calls in and out. What causes the full cone test failure? Ive tried the articles from the "How to resolve" and...

  20. 3cx working fine but firewall test failed then opened udp 3478-3479 and now passed

    my firewall test was failing but everything is working fine. i looked into the firewall checker guide and noticed they ran a packet capture for udp 3378-3379. i duplicated the test and noticed that i was not getting a binding response. i have a sonicwall so i added udp 3378-3379 to my...
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