Could you explain the term "Bridged VPN"?
In order to have a working site2site-VPN each site has to be unique when it comes to the ip-addresses (Site1: 192.168.1.0/24, Site2: 192.168.2.0/24 and so on....) If you use 192.168.1.0/24 on two sites, it won't work. Your local computers will think that any ip within that range is a local ip-address.
Routing between two or more sites will be done by the routers, they will know that an address on 192.168.1.0/24 is on site1 and an address on 192.168.2.0/24 is on site2. The route would look like this: "Destination: 192.168.2.0" "SubnetMask: 255.255.255.0" "NextHop: 192.168.1.1" "Interface: VPN"
So please let me know what "Bridged VPN" means, because I wasn't able to google that term successfully.