I use RV320 router shortly and I am trying to set all services I need. This router uses 2 WANs, one with public IP, second with provider's network IP address. All the traffic from LAN to internet goes over non-public (WAN2, provider's IP) and public IP (WAN1) is intended for remote access to local network, several services and VPN.
I have added a DNS record in the domain administration so anyone in internet typing "remote.mydomain.xy" is redirected to WAN1 IP address where login page of router or NAS is shown.
When I type "remote.mydomain.xy" within LAN, the request is timed out.
As I found, this feature is called hairpinning. I tried to google any solution, but all of them are more or less far from my router setting.
The same goes for other services. They are accessible from outside the network but not responding within LAN. I have to set manually the local IP of device with running service and when leaving the office, I have to change back to public IP or remote.mydomain.xy
Is there any easy solution how to enable hairpin function on this router?
I tried to set it in Firewall's access rules, but without success. I think it has to have something in common with Firewall setting as the hairpin seems to work when firewall is disabled.
