On 27/12/2020 15:26, Chris Green wrote:
> Andy Burns  wrote:
>> Chris Green wrote:
>>
>>> So does just trying to connect *to* the device which has the data sim
>>> dongle wake up the connection?
>>
>> A *little* bit more than that, a lot of 4G dongles still pretend to be
>> modems, using e.g. ATDT*99# command to "dial" the connection, no
>> dialling takes place, but it's a convenient lie to allow a PPP daemon to
>> bring up the 4G connection and get an IP addr etc.
>>
>>> It means one needs a dynamic DNS
>>> service but that's not a big problem.
>>
>> That'll work, provided your mobile provider gives you a public IP
>> address, not a private one that's NATed.
>
> Or I can do what I already do out through the marina WiFi, set up
> reverse ssh tunnels.  That might actually be the way to do it anyway
> as it avoids the need for dynamic DNS.
>
>
That should work purrfect if you know how to so it, I dont


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