Configuring a SonicWALL SonicOS 7.0.1-5119 Firewall with 3CX

[vincent Kavila]

Hello,

Does anyone have any idea about Configuring a SonicWALL SonicOS 7.0.1-5119 Firewall with 3CX?
My 3CX is running on a VOIP zone which is segregated from the main LAN.
Please share.

 

[SweetAction]

Have you looked at https://www.3cx.com/docs/sonicwall-firewall-configuration/?

While the screenshots are of SonicOS 6, it's the same steps, but in slightly different locations.

 

[Alphabetic]

Sonicwalls have a wizard option in the top right that can help you set up your forwarding rules.

 

[vincent Kavila]

I succeeded.

Thank you

 

[stephensatt]

I too am having the same issues. I tried to use the v6 instructions but some of them don't directly translate over to the v7 interface. The problem I am having is we are changing out our old Watchguard firewall and the incoming phone calls will not ring on the 3CX Grandstream phones if I put the Sonicwall in place. I cannot get into the Watchguard and we don't know who originally configured the system. I have not tried the Wizard option but will try that next. Also does anyone know where the "Firewall Checker" was moved too because I need to check if the ports are actually open after programming the new Sonicwall?

 

[SweetAction]

I've written the v7 instructions and 3CX will likely publish the guide soon.

The firewall checker should be on the main management console page, like always.

 

[stephensatt]

Is there anyway you could email the v7 instructions to me? I need to get this done. Thanks.

 

[vincent Kavila]

I too am having the same issues. I tried to use the v6 instructions but some of them don't directly translate over to the v7 interface. The problem I am having is we are changing out our old Watchguard firewall and the incoming phone calls will not ring on the 3CX Grandstream phones if I put the Sonicwall in place. I cannot get into the Watchguard and we don't know who originally configured the system. I have not tried the Wizard option but will try that next. Also does anyone know where the "Firewall Checker" was moved too because I need to check if the ports are actually open after programming the new Sonicwall?

 

[vincent Kavila]

I too am having the same issues. I tried to use the v6 instructions but some of them don't directly translate over to the v7 interface. The problem I am having is we are changing out our old Watchguard firewall and the incoming phone calls will not ring on the 3CX Grandstream phones if I put the Sonicwall in place. I cannot get into the Watchguard and we don't know who originally configured the system. I have not tried the Wizard option but will try that next. Also does anyone know where the "Firewall Checker" was moved too because I need to check if the ports are actually open after programming the new Sonicwall?

I followed the same KB article for V6 and it worked well, the only problem I have is that I can't access 3CX using FQDN on the same network.

 

[stephensatt]

I was able to get access into the 3CX dashboard, but cannot find the port check tool. Can someone tell me where its located?

Is it under ADVANCED or SETTINGS?

 

[Chris-MBN]

stephensatt,

There is a section in the middle pane of the dashboard called Firewall. Click on that.

 

[CentrexJ]

I followed the same KB article for V6 and it worked well, the only problem I have is that I can't access 3CX using FQDN on the same network.

You have to configure a loop back rule.

 

[Chris-MBN]

Vincent,

Expanding on CentrexJ's post, follow this guide: https://www.sonicwall.com/support/k...sing-public-ips-loopback-nat/170505780814635/

Make sure the Translated Destination is the Address Object for your on-prem 3CX server.

 

[stephensatt]

stephensatt,

There is a section in the middle pane of the dashboard called Firewall. Click on that.

Ok found it. Thanks for the replies. I am going to try and reprogram the firewall first using the wizard.

 

[r.dasilva]

@vincent Kavila @stephensatt @Chris-MBN @SweetAction or other :

Can you please share a full documentation step-by-step to configure SonicWALL TZ 270 (Gen7) with 3CX local and best pratices ?

I need configure NAT 1:1 rules and NAT LoopBack for FQDN.

I don't have local DNS Server (Microsoft).

Thanks in advance,
Best regards

 

[tbc-tech]

I followed the same KB article for V6 and it worked well, the only problem I have is that I can't access 3CX using FQDN on the same network.

did you ever figure out your issue with accessing 3CX server via FQDN on the same lan? Curious if you ever found a fix to your issue as I'm having the same issue. I have tried many guides, but nothing seems to be working for me. I can access the server via IP, but get the "Red error message at the top of the admin landing login page". ANy suggestions is greatly appreciated. Thanks