- Microsoft Forefront Threat Management Gateway (TMG) 2010 is an integrated edge security gateway. An enterprise-class firewall (Common Criteria certification pending – ISA 2006 and ISA 2004 were both EAL4+ certified), it includes support for proxy services (forward and reverse proxy), content caching, and VPN (both remote access and site-to-site). It can be deployed in all of these roles, or any subset of them.
- Microsoft Forefront Unified Access Gateway (UAG) 2010 is a dedicated remote access gateway. It provides browser-based remote access to published applications via an SSL VPN portal. It includes limited support for traditional client access VPN with Secure Socket Tunneling Protocol (SSTP) and Network Connector (a proprietary UAG component that provides network-level access). UAG can also serve as a DirectAccess gateway, a deployment scenario for which the UAG provides incredible value.
UAG – Lets the good guys in.