V Mon, Jun 05, 2023 at 03:27:58PM +0200, Michal Schorm napsal(a): > Thought: > (disclaimer: I don't know much about networking) > IPv4 addresses are in some cases 'human readable' / 'human usable' / > 'human friendly'. > > How can one set up a temporary network of several devices for a LAN > party or any similar connecting application use cases? > From my own experience, the vast majority of people have no idea that > when one tells you "write in: ten zero zero eight", they have to put > dots in between. Because they have no idea what IP address is and how > it's formatted. > > I can't imagine I would say this out loud to even a tech experienced > person and they would get it right the first time. > 1a01:4204:b07d:af00:21c6:542a:611:73ea > > Not mentioning all the times I need to connect devices in many rooms > across several floors in the whole building. > > Is there any easy way to keep exchanging the IP address 'human usable' ? > It is. And it works exactly the same way as in IPv4. You pick a well-known prefix and then append a simple number. Should I continue your example with LAN, then the prefix is fe80::/64. E.g. fe80::1, fe80::2 etc. are valid addresses. (The fe80::/64 prefix has some theoretical constraints on some higher bits in the address, but I guess nobody invites more than 2^24 people on a party, so you don't have to be concerned. There are also practical constraints, like this prefix is not routable and if you have more network interfaces, you would have to follow it with a network interface identifier in your applications.) -- Petr
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