How to create a simple VPN server while being NATed

VPN
1

Hello I have a machine located off site, that i would like to VPN into, problem is that device is being NAT’ed. Would it still be possible to create a VPN server on that location? The router is a omada ER605 (without a cloud controller). I understand if it will be a pain to setup, but is there any way for me to create a VPN server on that router without having to configure the isp router or placing a dummy windows/linux computer in that network?

Im also using an omada ER605 router , if that matters. Im willing to switch routers/ buy a cloud controller if i have to (unless if the router is very very expensive). The VPN type can be anything, as long as i can connect without touching any settings on the ISP router. As for the type of IP Address hopefully it can work with a static and non static IP, since i might have locations where where on one locations its static then another server with non-static (please share the method even if it only works with one)

Any ideas?

2

Just setup an openvpn server on the er605

3

Hey,

Have you been able to resolve this?

4

Thank you so much for posting this! The comments in this thread helped a bunch.

5

So just to confirm, if i connect to the offsite ER605 that is hosting open VPN, I can do

  1. check for devices on the network

  2. connect local servers hosted on other machines under that network

Any drawbacks for openVPN i should know about?

6

Is your router behind a nat? If not then all you do is create an open VPN server and a client account for you. You have to export the configuration and import it to the OPEN VPN client. You will be ablate access local machines but you will have to do it vi IP not smb names. If your touter is behind a nat (double nat) then you will have to forward the VPN ports to the ER605 in order for it to work. You will also have to edit the exported openvpn configuration to match the public IP address.

7

I am sure that i am behind a NAT, since that how it is typically done in my area, as for a double nat, im not sure, is there anyway to check?

8

Yes. What’s your router wan IP? If it’s a private IP then it’s behind a nat (double nat)

9

The ISP router’s WAN? or the omada wan IP? omada IP is private sadly.