I have to build up a new network and move the old network to our new network and firewall.
The old network is secured with an old ISA2006 firewall.
The new network is connected to my FORTIGATE.
Is it possible to create a VPN tunnel between both ?
Because the main DC is in the old network and the 2nd DC is in the new network. They have to sync before we switch over to the new network.