I require some advice on following:
I have two different company network where each have own LAN/WAN subnet and resources.
Company A require access to Company B resources via WAN connection.
Company A has employee from Company B at the location
Company B employee need access the resource on his Company B and resource at Company A
At Company A location, employee from Company A and B are sit together (using same subnet)
Both company require some kind of security implement to only allow agreed traffic from either side.
How the Company B employee(at Company A location) access to Company A resource and Company B resource from the same machine ?
The answer should include
a. type of routing
b. is NAT require ?
c. is Layer 3 devices require at the location to separate two different subnet use by different Company?
d. how both employee get the ip address and DNS
Beside above, what if both company have access to own network via VPN. How to apply all above ?
Thanks and appreciate your time.