As of LCOS 10.94, you can configure IPv4 WAN access in DNS under .
- IPv4 access from WAN
- Defines whether access from WAN interfaces to the DNS server or DNS forwarder via IPv4 is generally allowed. Access to these services via IPv6 is controlled exclusively through the IPv6 inbound firewall. Access can be controlled globally for the corresponding interface types using this switch. For more granular control than this level, corresponding IPv4 firewall rules can be configured. Access to the DNS service must be allowed via VPN if VPN clients are to use the router as a DNS server or DNS forwarder, for example, to resolve locally configured station names. Access to the DNS service via WAN must be allowed if clients are to connect to the router using PPPoE, L2TP, or PPTP. In this case, it is recommended to configure granular control for the local DNS service via firewall rules. VPN interfaces include IPSec VPN (IKEv1/IKEv2) and WireGuard. WAN interfaces include all WAN counterparts such as Internet connections and RAS dial-ins to the LANCOM router acting as a PPPoE, PPTP, or L2TP server.
