DIFFERENT WORKGROUPS IN MY NETWORK PLACES…

I have six locations. Five of these locations connect into my main location via VPNs over the internet. Each remote location has a SonicWall TZ170 and my main store has a SonicWall PRO2040. Each location works on a different IP scheme – IE my main location is 192.168.2.X and the remotes are 192.168.3.X, 192.168.7.X, 192.168.5.X, 192.168.6.X, & 192.168.7.X. These remote locations also work on a different workgroup – IE the main location has a workgroup of OFFICE and a domain of CLC in it’s network and the remote stores have workgroups of MBC, IRDC, RTDC, SIDC, & RCDC.

How can I get these workgroups added into MY NETWORK PLACES so that all the machines are listed?