Moving into a new office and we will be setting up a small new LAN, server and hosted VOIP phone service. We would like input on the network design incorporating a Sonicwall TZ UTM firewall, a hosted VOIP provider Edgemarc 4550, NetGear ProSafe GS716Tv3 and a Windows 2012 WSE server.
The primary area of concern is the converged nature of the network traffic and the relationship between the Sonciwall UTM and the Edgemarc.
Conditions and Constraints:
- a single public IP available
- computers will be daisy-chained off of Polycom phones
- all devices will connect to NetGear switch
Where and how should the edgemarc be deployed? Should it go in front of the SonicWall WAN interface or should it be in a Sonicwall DMZ or something else?
On DHCP: In a specific configuration which of these should provide DHCP?
On DNS: is using the Windows server for DNS the best option?
Any and all recommendations and input are welcome. Thanks in advance.