Vincent Lefevre <[email protected]> wrote: > On 2026-06-28 12:20:38 +0200, Vincent Lefevre wrote: > > Under Debian/unstable, with a wifi connection from the train, > > NetworkManager spams the logs with "state changed new lease" > > regularly every minute: what is the cause? > > > > Jun 28 11:57:41 qaa NetworkManager[1264]: <info> [1782640661.4715] > > dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171 Jun > > 28 11:58:41 qaa NetworkManager[1264]: <info> [1782640721.4779] > > dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171 > [...] > > The Mistral AI chatbot pointed me to an explanation and the command > "ip addr show wlp0s20f3" to check the valid_lft value. > > I could see that the initial values are > > valid_lft 120sec preferred_lft 120sec > > and when this value reaches 60sec, the lease is renewed. > > So, it seems to be an issue with SNCF's DHCP server, which uses > an incredibly low value!
It might be a reasonable time on a train, where connections will be made and dropped all the time. It's only a problem for people who spend their time looking at logs! > I suppose that a renewal of the lease enough time before the end > of its validity is expected. >
