Hello
last chance after reading and trying a lot of things.
A windows Server 2012 R2 with two interfaces one for public and other for internal LAN. With only DNS and Remote Services Role installed. When RRAS routing with NAT is active external queries to DNS are blocked; just really no way how to fix it.
For completeness I attach all technical information:
- NIC 1: public ISP IP, with no gateway and no DNS configured, Only TCPIP/v4 enabled no other services like windows client services, shared and so on.
- NIC 2: internal Lan , with ip 10.0.0.1 mask 255.255.255.0 no gateway no DNS configured. As before only tcpIP v4 configured .
RRAS configured following the wizard selecting NIC1 as internet connected and letting all the rest as "next->next".
firewall is disabled to avoid any interference.
Dns is configured with one zone for testing, just listening on the NIC 1 interface and disabled forwarding and recursive. The rest of DNS configuration is "Next Next".
Also I check that RRAS is not dropping packets executing: netsh ip routing show filter.
Please any help is much appreciated.