i have two locations each with forefront TMG 2010 servers deployed
both locations have client access VPNs configured and working properly where i can VPN and do things like remote desktop to my servers etc
i have configured a site to site VPN as per my extensive knowledge working with ISA and being successful in the past, however i cannot get the connection to work.
i have created the site to site network at both ends. both servers have a user account with dial in permissions locally on the TMG servers matching the site to site network name on them. i see the connection in RRAS and it says unreachable.
i have a peplink in front of one of the TMG servers at one location, but have created an inbound rule to forward all PPTP traffic to my TMG server (the site to site VPN is PPTP).
any ideas what could be causing the issue?