we have a Sonicwall TZ-210 firewall, and we also have a Fonality PBXtra telephone system.
In order to have remote phones working outside the network, there are certain ports that i need to open up in the firewall. one specifically is USP 5060.
I am having trouble configuring this to work unless I open that port up to all traffic. from what i think i know, i should be able to have this traffic directed only to the internal IP of our phone server, but i cannot make this work.
where i think the problem is in defining the Address Objects for the Network. when i create and Address Object for the system it by default puts a netmask of 255.255.255.255. which is wrong as it should be 255.255.255.0.
I cannot figure out how to change this, it needs to point to 192.168.2.20/255.255.255.0 for this to work i think??