Remote PLC Updates and Diagnostics Via Ethernet

[HydroBuff]

Good Morning, All,

I am using some Parker IQAN PLC's for some equipment out in the field. IQAN uses an RJ45 ethernet port for diagnostics and software updates and I am wondering if any of you would have suggestions of products that I could use to securely connect to these machines remotely. I believe that a cellular modem with a VPN would technically do the job, but maybe you all know of a specific product designed for the job?
I have considered using either

https://www.inhand.com/en/products/inconnect-remote-access/

or maybe

https://iptechlabs.com/

, but I would like to know what other engineers have used for these scenarios.
Thanks in advance for your suggestions.