On Dec 01, 2023, gene heskett wrote: > On 11/30/23 23:18, Max Nikulin wrote: > > [...] > > What I see in your messages are false claims, e.g. that DHCP addresses > > are unstable. DHCP servers *may* be configured to assign fixed addresses > > to particular clients. > > > My ISP does that, so my exterior net address has been stable for over a > decade, but I've tried it 2-3 times in the 2000's and got unstable > addresses from the distro versions of dhcp every time.
Your router just renews its lease within the renewal window. If you had no power for a week, then your router would lose its lease, and the IP address would change. That is -- no, your ISP does not reserve your IP address at all. Likewise, a Debian box running isc-dhcp-server (or any of the other myriad of options) will hand out the same address to the same machine forever, provided that machine asks to renew before the lease expires. Note that if we're talking about devices that leave your network, this somewhat goes out the window; because if they happened to join a remote network that happens to share the same subnet, AND that network tells them to use a different IP address (e.g. home was 192.168.1.100, starbucks told your laptop '100' wasn't available), then the laptop MAY request the IP address Starbucks gave when you get back home. -- |_|O|_| |_|_|O| Github: https://github.com/dpurgert |O|O|O| PGP: DDAB 23FB 19FA 7D85 1CC1 E067 6D65 70E5 4CE7 2860
signature.asc
Description: PGP signature