Rick: The problem is not dynamic IP addresses changing. That’s easy to fix. It’s CG-NAT (Carrier Grade Network Address Translation), which doesn’t give you an external world addressable IP address. You can’t assign a DDNS name because you don’t HAVE an IP address to map to. Many carriers (T-Mobile is a perfect example) are now using this approach, which blocks customers from getting to their devices/services from outside their home networks.
The only solution is to use a commercial tunneling VPN or a free service like ngrok, which creates a permanent tunnel to external servers which DO have addressable IP addresses. 73, Adrian > On Dec 15, 2023, at 9:20 AM, Rick Tavan <r...@tavan.com> wrote: > > Hi, Dave. I don't think it will be much of an issue. With many ISPs, > external IP addresses change rarely. If your ISP is changing addresses > frequently, consider using a DDNS server like no-ip.com. I have tested K4 > Remote using a DDNS string in lieu of a hard-coded WAN address and it works > fine. > > /Rick N6XI > >> On Fri, Dec 15, 2023 at 1:44 AM Dave <dave.g4...@gmail.com> wrote: >> >> Very interesting Rick, thanks for sharing the info. >> >> One issue that seems to be increasingly common is that some (many?) ISPs no >> longer offer a fixed IP address, which K4 Remote currently needs. The >> system many ISPs are changing to is carrier grade network address >> translation, it first surfaced in mobile networks, but is spreading to home >> broadband too as ISPs run out of IPv4 addresses, see: >> https://en.wikipedia.org/wiki/Carrier-grade_NAT >> >> A way around this is with the use of a central server, which isn't usually >> free. Remote TX works in this way but uses a Raspberry Pi. I note they >> support the K3. https://www.remotetx.net/ >> >> 73 Dave G4AON >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rta...@gmail.com >> > > > -- > -- > > Rick Tavan > Truckee and Saratoga, CA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kj7...@gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
