@Ethan-TP Hello, I'm using the ER707-M2 as my internet facing router on port 1, I have my wireless router a GL-Inet MT6000 which it also has 2 -2.5 gb on port 2 of the ER707, this setup includes a travel router which I use to remote into my home office network, the errors I posted are generated by tthe GL-Inet, before I designed this intranet I requested  my ISP to assigned me a static address so I wouldn't have a real need for a DDNS, I performed a testi to elimnated the MT6000 as the source of the problem by connecting it directly to my ISP and it reported no errors, so it appears that the issue is with a port forwarding settings on my ER707-M2 which is not be allowing me to port foward the public IP from my ISP to my LAN port 2, I hope that makes sense, I also hope you can help me find a solution to my issues, fact is the ER707 has very robust security features and I'd like to it keep inline. 

Thanks in advance.

  @Maccone 

 

I am trying to work out what your layout here is

ER707-M@ > LAN2 > GL.iNet Router

 

The GL router establishes an outgoing VPN?  and then how do you access the vpn the GL is establishing, are you using the GL as your gateway ?

Hello, I'm using the ER707 as my ISP facing router, the MT6000 as my wireless and wired router as well as the VPN, travel router to via VPN into my network, the Linux server is connected to the MT6000 via a 2.5gb Ethernet port. I hope that helps.

Hello Ethan-TP, After reading your response stating that "After the ER707 obtains an IP on its ISP-facing WAN port, it only hands out private IPs to devices on its LAN, so the MT6000’s WAN port will never receive a public IP. Port-forwarding won’t help here." What do you suggest as a solution, I thought setting up a virtual server( port) forwarding was supposed to allow the ER707-M2 to pass the public IP to a LAN port? is there any setting or settings that will accomplish that task? When I perform a trace-route and a dns-lookup I can see a reference to my public IP.

Hello my next question, is there a updated firmware package available that will address the WAN to LAN issue with the ER707-M2?

The MT6000 connects to the internet just fine via the ER707-M2, and all of my standard services connect as well, my problem is when I attempt to connect remotely to my VPN on the MT6000 via my remote travel VPN router the connection fails, now when I connect the MT6000 directly to the ISP, the MT6000 is using it's built in DDNS when i run DDNS test it reports The IP address from DDNS domain resolution is not the same as the WAN IP of the device. You need an Internet Public IP address to use Dynamic DNS. I really would like to keep the ER707-M2 in line, is there another way to accomplish my objective?