Package: kea-dhcp4-server Version: 2.6.3-1 Severity: normal Below is the relevant section of /etc/network/interfaces:
auto br0 iface br0 inet static address 10.0.0.1 network 10.0.0.0 netmask 255.255.0.0 broadcast 10.0.255.255 bridge_ports ethtopl ethtopr ethbl ethbr bridge_stp on bridge_fd 3 bridge_hello 1 up /usr/local/sbin/firewall Below are the errors from systemctl status kea-dhcp4-server.service: Nov 10 23:23:34 xev kea-dhcp4[2029]: 2025-11-10 23:23:34.229 INFO [kea-dhcp4.dhcpsrv/2029.140300455860160] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/kea/kea-leases4.csv.2 Nov 10 23:23:34 xev kea-dhcp4[2029]: 2025-11-10 23:23:34.229 INFO [kea-dhcp4.dhcpsrv/2029.140300455860160] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/kea/kea-leases4.csv Nov 10 23:23:34 xev kea-dhcp4[2029]: 2025-11-10 23:23:34.229 INFO [kea-dhcp4.dhcpsrv/2029.140300455860160] DHCPSRV_MEMFILE_EXTRACT_EXTENDED_INFO4 extracting extended info saw 21 leases, extended info sanity checks modified 0 / updated > Nov 10 23:23:34 xev kea-dhcp4[2029]: 2025-11-10 23:23:34.230 INFO [kea-dhcp4.dhcpsrv/2029.140300455860160] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec Nov 10 23:23:34 xev kea-dhcp4[2029]: 2025-11-10 23:23:34.230 WARN [kea-dhcp4.dhcpsrv/2029.140300455860160] DHCPSRV_OPEN_SOCKET_FAIL failed to open socket: the interface br0 is not running Nov 10 23:23:34 xev kea-dhcp4[2029]: 2025-11-10 23:23:34.230 INFO [kea-dhcp4.dhcp4/2029.140300455860160] DHCP4_OPEN_SOCKETS_FAILED maximum number of open service sockets attempts: 0, has been exhausted without success Nov 10 23:23:34 xev kea-dhcp4[2029]: 2025-11-10 23:23:34.230 WARN [kea-dhcp4.dhcpsrv/2029.140300455860160] DHCPSRV_NO_SOCKETS_OPEN no interface configured to listen to DHCP traffic Nov 10 23:23:34 xev kea-dhcp4[2029]: 2025-11-10 23:23:34.230 INFO [kea-dhcp4.dhcpsrv/2029.140300455860160] DHCPSRV_CFGMGR_USE_ALLOCATOR using the iterative allocator for V4 leases in subnet 10.0.0.0/16 Nov 10 23:23:34 xev kea-dhcp4[2029]: 2025-11-10 23:23:34.232 WARN [kea-dhcp4.dhcp4/2029.140300455860160] DHCP4_MULTI_THREADING_INFO enabled: yes, number of threads: 18, queue size: 64 Nov 10 23:23:34 xev kea-dhcp4[2029]: 2025-11-10 23:23:34.232 INFO [kea-dhcp4.dhcp4/2029.140300455860160] DHCP4_STARTED Kea DHCPv4 server version 2.6.3 started The end result is that it is not serving DHCP. I run systemctl restart kea-dhcp4-server.service and then it's fine. -- System Information: Debian Release: 13.1 Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 6.12.48+deb13-amd64 (SMP w/18 CPU threads; PREEMPT) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_CPU_OUT_OF_SPEC, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: unable to detect Versions of packages kea-dhcp4-server depends on: ii init-system-helpers 1.69~deb13u1 ii kea-common 2.6.3-1 ii libc6 2.41-12 ii libgcc-s1 14.2.0-19 ii libstdc++6 14.2.0-19 kea-dhcp4-server recommends no packages. Versions of packages kea-dhcp4-server suggests: pn kea-doc <none> -- Configuration Files: /etc/kea/kea-dhcp4.conf [Errno 13] Permission denied: '/etc/kea/kea-dhcp4.conf' -- debconf-show failed
