[Kea-users] Kea-DHCP4 exiting right after start

[Alessandro Vesely]

Hi,

when the server boots, it starts DNS in this order:

...
lrwxrwxrwx 1 root root 19 Jun 28  2019 S03mynetwork -> ../init.d/mynetwork
lrwxrwxrwx 1 root root 19 Jul 10  2020 S03rmnologin -> ../init.d/rmnologin
lrwxrwxrwx 1 root root 26 Oct 18  2021 S03rng-tools-debian -> ../init.d/rng-tools-debian
lrwxrwxrwx 1 root root 17 Nov  7 12:59 S04elogind -> ../init.d/elogind
lrwxrwxrwx 1 root root 26 Nov  7 12:59 S04kea-dhcp4-server -> ../init.d/kea-dhcp4-server
lrwxrwxrwx 1 root root 30 Nov  7 12:59 S04kea-dhcp-ddns-server -> ../init.d/kea-dhcp-ddns-server
lrwxrwxrwx 1 root root 15 Nov  7 12:59 S04named -> ../init.d/named
...

However, upon login I find no DHCP4.  The log says so:

Mar 13 17:48:43 INFO  DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: enabled
Mar 13 17:48:43 INFO  DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/kea/dhcp4.csv persist=true type=memfile universe=4
Mar 13 17:48:43 INFO  DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/kea/dhcp4.csv.2
Mar 13 17:48:43 INFO  DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/kea/dhcp4.csv
Mar 13 17:48:43 INFO  DHCPSRV_MEMFILE_EXTRACT_EXTENDED_INFO4 extracting extended info saw 8 leases, extended info sanity checks modified 0 / updated 0 leases and 0 leases have relay or remote id
Mar 13 17:48:43 INFO  DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
Mar 13 17:48:43 INFO  DHCPSRV_DHCP_DDNS_SENDER_STARTED NameChangeRequest sender has been started: enable_updates: yes, server-ip: 127.0.0.1, server-port: 53001, sender-ip: 0.0.0.0, sender-port: 0, max-queue-size: 1024, ncr-protocol: UDP, ncr-format: JSON
Mar 13 17:48:43 WARN  DHCPSRV_OPEN_SOCKET_FAIL failed to open socket: the interface eth2r is not running
Mar 13 17:48:43 INFO  DHCP4_OPEN_SOCKETS_FAILED maximum number of open service sockets attempts: 0, has been exhausted without success
Mar 13 17:48:43 WARN  DHCPSRV_NO_SOCKETS_OPEN no interface configured to listen to DHCP traffic
Mar 13 17:48:43 INFO  DHCPSRV_CFGMGR_USE_ALLOCATOR using the iterative allocator for V4 leases in subnet 172.25.197.0/24
Mar 13 17:48:43 WARN  DHCP4_MULTI_THREADING_INFO enabled: yes, number of threads: 8, queue size: 64
Mar 13 17:48:43 INFO  DHCP4_STARTED Kea DHCPv4 server version 2.6.3 started
Mar 13 17:48:43 INFO  DHCP4_SHUTDOWN server shutdown


S03mynetwork contains a line saying `ip link set eth2r up`.  Indeed, when S04named came up, it logged:

...
Mar 13 17:48:43 30 north named[2073]: listening on IPv4 interface eth2r, 172.25.197.1#53
Mar 13 17:48:43 30 north named[2073]: listening on IPv6 interface eth2r, 2a02:29e1:500:6c22::1#53
...

Should I change the init order?  Put a pause?  What else?

TIA for any hint
Best
Ale
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