Hello, It's possible to install DirectAccess without UAG?? I caninstall it withTMG?? I have a forest with a domain where I have all the computers and where users logon. In this forest there is an Enterprise CA. I have another resource forest where I have installed a TMG and various DC's in 2008 R2. The internal network configuration is ipv4. My question is,DirectAccess can be installed in this environment without installing UAG? Would have any problem to have installed TMG? Thanks

You need a public IP on a NIC for DirectAccess to work. UAG will make your life easier in the long run, but it can be done without it. Remember that TMG is a firewall and a proxy (forward and reverse) server, while UAG is a VPN server and reverse-proxy only (with limitations).