a week ago
Had my internet service upgraded from my local cable provider. The required them to install their cable modem. This cable modem, has a built in firewall. So I have to setup port forwards in order to make my VPN on the EdgeRouter X work again. Got the VPN working. But for some reason my DNS name resolution on my local area network behind the EdgeRouter X is not working. In the doc for the L2TP VPN setup, it mentions that you have to setup a rule for ESP. But I can find out if I need to setup a port forward in the cable modem firewall as well. Do I need to, in order to get DNS name resolution to work? If so, how do I configure the port forwarding setup?
NOTE: My L2TP VPN setup was working flawlessly, before getting my internet service upgraded by my cable provider.