First off, I assume this is a simple question, but I do not have a background in networking. Nonetheless, I am responsible for setup and maintenance. I would appreciate any help.
I have the following network layout in one building:
How do I go about facilitating direct communications between the individual networks? I.e. devices on the VOIP network can communicate with devices on the LAN network without going over the WAN connections? And all devices have access to the DCs and DNS servers located on the 172.19.1.0 network.
The part that confuses me is I need to maintain the WAN separation transparently to the devices. I.e. the stationary phones need to use WAN-1. The stationary desktops need to use WAN-2. The travelling devices need to connect over WAN-3. I am guessing this is achieved by the gateway address passed out by the router dhcp?
Can you recommend any specific cost effective hardware to make this happen for a small user base? Each network uses a Ubiquiti EdgeRouter Lite as the router/gateway if that helps with recommendations.