Port forwarding

SardarAlam
Comes here often

Port forwarding

 Hello Everyone,

 

Please assist:

 

i have added some port in port forwarding but the require task still not working i need port forwarding for 3CX server, So user from outside of network will able to use 3cx server for this i need port forwarding. how can i check my local 3cx server ip that port is opened or not.

 

5 REPLIES 5
KarstenI
Kind of a big deal

This is best done on the server itself with the tools of the OS.

And you can put your PC into the 3cx VLAN and do a port-scan.

OVERKILL
Building a reputation

Well, first thing: can you connect to the 3CX server from inside the network? I assume that you can and all works as intended? 

 

3CX indicates the following ports are used:

Screen Shot 2022-10-07 at 2.01.04 PM.png

The mandatory ones to be forwarded are, depending on what you are connecting (see notes in the table):

- TCP 5001 or 443

- TCP/UDP 5060

- TCP 5061

- TCP/UPD 5090

- UDP 9000-10999

 

You can configure these on your MX:

Security & SD-WAN -> Configure -> Firewall -> Forwarding rules 

Port forwarding is configured same like this.

Tobih
New here

What firewall? If your port forwarding is correct but the checker still fails it's usually one of three things:

- Incorrect port forwarding
- SIP ALG is on
- Double NAT or Carrier NAT

SardarAlam
Comes here often

How to disable SIP ALG in MX? I believe  the issue is about SIP ALG.all port showing done but 2 things showing fault. 

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