pfSense » pfSense Packages

I have a set-up where pfSense runs between a DSL router (WAN interface) and an internal domain with multiple DNS servers (LAN interface). In the DNS configuration I added the internal DNS servers with their IP address and checked the box for "Allow DNS server list to be overridden by DHCP/PPP on WAN". With this configuration pfSense is not able to resolve the internal DNS names anymore. Only when I disable the check-box and manually add the DSL router's IP address to the end of the list of DNS servers name resolution works as expected. The internal domain name ends on .lokal so I don't expect any issues from the external DNS server feeling responsible for this domain.