Sophos XG & 3CX

[synaesthesia]

Does anyone have a working 3CX setup with an XG? Struggling to get my head around it, particularly with 3CX requiring "full cone NAT" and seeing nothing of the sort in XG itself. Already have the XG SIP/ALG bits disabled.

[localzuk]

We have it running via an XG. I'll have a look at the rules I put in and let you know

[localzuk]

OK, so the rules in place are:

 

Forwarders:

 

Source - Destination - Ports - Comments

WAN/SIP Provider network - External IP - any ports - a simple blanket rule allowing traffic from the SIP provider to our 3CX server.

WAN/Any - External IP - TCP/UDP 9000:9500 (SIP Media), TCP/UDP 5090 (SIP Tunnelling), TCP/UDP 5060 (SIP), TCP/UDP 10600:10998 (SIP Media 2), TCP 5001 (3CX Admin) - Admin is allowed in order for the 3cx config files to work outside the network for home workers

LAN/Phone Server - Any - Any - Allowed. (Blanket allowed outgoing from the 3cx server) (masquerading on)

 

It could probably be narrowed down outgoing, but I don't have a huge issue with the phone server having those abilities.

[Davit2005]

OK, so the rules in place are:

 

Forwarders:

 

Source - Destination - Ports - Comments

WAN/SIP Provider network - External IP - any ports - a simple blanket rule allowing traffic from the SIP provider to our 3CX server.

WAN/Any - External IP - TCP/UDP 9000:9500 (SIP Media), TCP/UDP 5090 (SIP Tunnelling), TCP/UDP 5060 (SIP), TCP/UDP 10600:10998 (SIP Media 2), TCP 5001 (3CX Admin) - Admin is allowed in order for the 3cx config files to work outside the network for home workers

LAN/Phone Server - Any - Any - Allowed. (Blanket allowed outgoing from the 3cx server) (masquerading on)

 

It could probably be narrowed down outgoing, but I don't have a huge issue with the phone server having those abilities.

 

I've been struggling to get External clients talking to my Home 3CX server so will try these as well.

 

Got the end of my home phone contract coming up and want to use 3cx instead of the ISPs VOIP service.

[synaesthesia]

Cheers