[Elecraft] K4 remote protocol

[Lynn W. Taylor, WB6UUT]

HTTP runs over TCP, so either way, we're talking about TCP.

Here is what I'd do.

Dig into OpenVPN.  It's open source software, you can buy routers that 
handle it natively, or you can put an Raspberry Pi 3 on the end of your 
link.  There is client software for just about everything out there.

This is the correct use for a VPN (most of the advertised VPNs offer 
"security" that doesn't actually exist).

You open up the VPN whereever you are, and you have one connection that 
magically becomes a really long ethernet cable.

Your device anywhere in the world is on the LAN at your remote station.

Doesn't matter if you have 5 connections, or 5,000.  As far as AT&T can 
tell, it's just one.

73 -- Lynn

On 5/21/20 9:08 AM, K5WA wrote:
> This may be a Wayne/Eric question but if anyone else knows for sure, please chime in.
> 
>   
> 
> I’m setting up a new remote system and want to plan properly for the pair of K4s I’ve got ordered.  Is the ethernet communication between a K4 and its Elecraft remote software TCP or HTTP? I’m assuming TCP but thought I’d better check.
> 
>   
> 
> I’m having to go through an ATT Mobile system (CGNAT) with NGROK tunnels and I’m up against a limit on reserved TCP tunnels so want to make sure I’m going the right direction before I spring for more reserved TCP tunnels.  😉  The station is WAY out in the country and that is why I’m stuck with a mobile cellular ISP.
> 
>   
> 
> Thanks,
> 
>   
> 
> Bob K5WA
> 
> Houston, TX
> 
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