Hi,
I've got a TMG 2010 server and I'm using it provide a site to site VPN connection to a remote branch that is also running TMG 2010. This all works great. My issue is that after the site to site VPN comes up, in my HQ site, the IP address in the DNS entry for my TMG 2010 server changes. The HQ TMG 2010 server has a an address of XXX.XXX.0.21 set as the IP address of the internal NIC. Once the VPN site to site VPN connection comes up, the DNS entry for the HQ TMG server gets set to an address of on the remote branches subnet, so something like XXX.XXX.17.5.
Can someone explain why this is and how to fix it.
Thanks in advance,
Nick