I have a hub and spoke network where a T1 comes in to the hub site A and there is a frame relay connection going over to the spoke site B. We want to add a VPN concentrator to site A for remote access but site A and site B have their own domains that are independant of one another. Can I set up the VPN Concentrator to authenticate users that belong to site A domain using site A's domain controller and authenticate users the belong to site B domain using site B's domain controller? That way we can use a single VPN concentrator and a single internet connection but keep the authentication seperate.
Thanks in advance for any help.