Computer Networking - November 2006

hi Guys,

i am trying to design a solution using VPN for the following scenario and can use any help/insight/correction/guidance you can think of.

the company has 2 physically separate locations (loc1 and loc2)
each location has just one LAN currently.

we want to split this LAN into 2 (user pcs and test pcs) for each location.
and we want users in each location to be able to access the test pcs of BOTH locations.

so the proposed solution is the following:
split each lan into 2 physically separate LANs with separate ISP connections (user LAN and test LAN)
create a VPN tunnel between the 2 LANs on each location
create a VPN tunnel between the 2 test LANs

i guess it will look something like this:
loc1 user lan -----vpn----- loc1 test lan -----vpn-----loc2 test lan -----vpn----- loc2 user lan

will this work and is it the best approach?
and how will i prevent loc1 users from accessing shares and stuff on the loc2 user lan and vice versa?
thanks

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