On Sun, 3 Dec 2023 22:14:51 +0100 Geert Stappers <stapp...@stappers.nl> wrote:
> I assume that the previous router is disconnected from the LAN. No. Until I solve this problem (and a few others), I will have clients using the old router. > The DHCProtocol has "release" for such goosing. > At DHCPclient do "stop DHCP", over the wire goes DHCPRELEASE [0] > The DHCPclient should forget ( "release" ) previous settings. > At DHCPclient do "start DHCP", client should get fresh config, > including the setting for the fresh router. I'm not sure how to do this. I did run on a client dhclient -r dhclient I observed no changes. The -r causes dhclient to release its lease. Invoking dhclient again should then obtain a new lease. > > > If that is already done, provide information to enable further help. > Such as name of the DHCP client program and DHCP lease time. I am using whatever is standard on Debian Bullseye and Bookworm. root@hawk:/etc# pre dhc isc-dhcp-client 4.4.1-2.3+deb11u2 amd64 isc-dhcp-common 4.4.1-2.3+deb11u2 amd64 root@hawk:/etc# root@tiassa:~# pre dhc isc-dhcp-client 4.4.3-P1-2 amd64 isc-dhcp-common 4.4.3-P1-2 amd64 root@tiassa:~# The client's name is dhclient. default-lease-time 86400; # 24 hours max-lease-time 172800; # 48 hours I think for the purposes of experimentation I will shorten those to half an hour and one hours respectively. -- Does anybody read signatures any more? https://charlescurley.com https://charlescurley.com/blog/
