Sam.Newtouni Posted November 18, 2019 Report Share Posted November 18, 2019 Hi all, Does anyone have a tried/proven method that can create a VPN link to a remote station with a private (mobile 4g) IP address? I am trying to scope a job and investigate if this would be a financially viable solution over SMS notifications. So I'm looking for advice on free VPN solutions and what hardware would support that. Controller is a Samba with ethernet module. Many thanks, Sam Quote Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted November 19, 2019 MVP 2023 Report Share Posted November 19, 2019 I've used Sierra RV50 cellular modems with static IPs to communicate with remote PLCs, but not with a VPN. I just forwarded the ports I needed in the unit and was able to do Modbus TCP communication and remote programming. What end result are you trying to achieve? Joe T. Quote Link to comment Share on other sites More sharing options...
stembera Posted July 31, 2020 Report Share Posted July 31, 2020 For establishing VPN you must have static public IP address on at least one side of the connection. You will need a pair of routers capable to create LAN-to-LAN type VPN. If one side is on private dynamic IP address, you will need to configure your VPN as "aggressive" type, please read the documentation of your routers. The side with private IP address must be always the calling side of the connection. I can recommend routers of Taiwanese company DrayTek. Quote Link to comment Share on other sites More sharing options...
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