61–70 of 83 posts
None of this is remotely new or interesting. I was doing IP-over-laser-light at Ethernet speeds over kilometer distances using free-space optics thirty years ago, and even then it wasn't a new technology.
None of this is remotely new or interesting. I was doing IP-over-laser-light at Ethernet speeds over kilometer distances using free-space optics thirty years ago, and even then it wasn't a new technology.
They built a program they called (relay) that sends packets between a tun network device & a uart serial device https://github.com/mikeakohn/small_projects/blob/main/ip_ove... I .... wonder if they considered just using PPP/SLIP?
They built a program they called (relay) that sends packets between a tun network device & a uart serial device https://github.com/mikeakohn/small_projects/blob/main/ip_ove... I .... wonder if they considered just using PPP/SLIP?
A while back I was doing some IP-over-UART shenanigans and it took me a surprising amount of research to discover the existence of SLIP. I think it's one of those things that at some point "everyone knew about" and ended up being poorly documented as a result.
I want to see the actual laser beams while transmitting those packets.
We know neolithic internet used free air lasers because we haven't found either optical fibre connectors or copper Ethernet in the trenches we dig at neolithic settlements.
They built a program they called (relay) that sends packets between a tun network device & a uart serial device https://github.com/mikeakohn/small_projects/blob/main/ip_ove... I .... wonder if they considered just using PPP/SLIP?
A while back I was doing some IP-over-UART shenanigans and it took me a surprising amount of research to discover the existence of SLIP. I think it's one of those things that at some point "everyone knew about" and ended up being poorly documented as a result.
But even then I don’t think I’d have thought to drag a dial-up framing protocol into a new project. Odds are I’d just recreate SLIP from muscle memory.... maybe?
I don't know why, but I would have expected higher speeds. Maybe my mind just assumes "lasers = fast". It would be interesting to know which factors make this setup unreliable at higher speeds.
Earlier quoted context omitted.
Yeah, but kinda cool making it from scratch. Also this uses air as the medium.
Free-space optical transmission is a thing, though it's environmentally quite challenging. We tested some gear from https://www.koruza.net at the Internet Archive ~10 years ago or so (I've also built some 10G point-to-point links in my garage, though I'd hardly call them reliable). It is pretty cool to see a scratch build rather than using commercial transceivers