A new PBX is being installed at one of our clients today, and they have requested that we give them one of our unused public IP addresses(Comcast is the ISP, have a block of IPs) for use with the PBX. Additionally, phones on the local network (on the LAN subnet) are going to need a private IP address for the PBX to connect to it. Finally, they want the PBX to be in a DMZ, and not to be behind the firewall.
To clarify, I need to configure the sonicwall to:
- Give a public IP address (from Comcast modem) to a device on the network.
- Assign a private IP to that device as well, accessible from LAN.
- Said public IP address must be a DMZ (no firewall).
What is the best way to accomplish this?