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I have a mess. First, my network consists of a Pace Pls 5268AC modem/router with a Deco mesh. There is no way to disable the NAT built into the Deco router, so in order to avoid double-NAT, I have disabled WIFI and opened the DMZ on the Pace modem. All LAN client IPs are assigned by the Deco router and I have port 32400 forwarded to my PMS. But, I have been unable to maintain remote access for PMS. I’m pretty sure it is because of the convoluted configuration, but I can’t figure out how to do it differently.
My PMS is running on a Synology 920+ NAS which has 2 Ethernet ports. The DSM 7.0 OS includes a VPN server. So, I am trying to figure out if I can take advantage of this by assigning the VPN to one Ethernet port and local LAN the other port. What I’m shooting for is being able to access my NAS via local LAN and have PMS remote access over the VPN port.
One thing that has me stymied it how to get PMS to use the VPN IP. Seems no matter what I do, it insists on the private IP remains the original local LAN IP. I’ve set the preferred network interface to the LAN port for the VPN, rebooted the NAS.
I know just enough about this stuff to get into trouble.
I’m flagging trumpy81’s post - good info. However, I went back and took another look at my configuration. I reset my modem and my mesh router and started from scratch. So, right now, I have my modem/router with both 2.4 and 5.0 WIFI disabled and port 32400 forwarded to my mesh router. Then I have port 32400 on my mesh router port forwarded to my PMS (Synology NAS). So far, so good.
I may hold off going with a VPN for a while so as not to introduce too many variables until this last configuration proves out…or not.
Update: I was still having periodic loss of PMS remote access after the above configuration changes. It was better, but not resolved entirely. But, while working with an “expert” on Synology’s support forum trying to solve a Hyper Backup problem, he had me try a “Hail Mary” and change the my NAS network configuration to a public DNS (I chose Google’s 8.8.8.8/8.8.4.4) and that solved the backup problem. I’m mentioning that here because after making that DNS change, my PMS remote access has become rock solid. I’m not smart enough to understand how that fixed either of my problems, but I thought I’d throw it out here in case it helps someone else.
