[Kea-users] DHCPSRV_OPEN_SOCKET_FAIL failed to open socket: the interface br0 is not running

[Michael Agbaglo]

Why is kea complaining while ISC dhcpd is working?



2022-01-12 07:28:32.200 WARN [kea-dhcp4.dhcpsrv/111933.140670479808384] 
DHCPSRV_OPEN_SOCKET_FAIL failed to open socket: the interface br0 is not 
running
2022-01-12 07:28:32.200 WARN [kea-dhcp4.dhcpsrv/111933.140670479808384] 
DHCPSRV_OPEN_SOCKET_FAIL failed to open socket: the interface br1 is not 
running
2022-01-12 07:28:32.200 WARN [kea-dhcp4.dhcpsrv/111933.140670479808384] 
DHCPSRV_OPEN_SOCKET_FAIL failed to open socket: the interface br2 is not 
running
2022-01-12 07:28:32.200 WARN [kea-dhcp4.dhcpsrv/111933.140670479808384] 
DHCPSRV_NO_SOCKETS_OPEN no interface configured to listen to DHCP traffic
2022-01-12 07:28:32.200 WARN [kea-dhcp4.dhcp4/111933.140670479808384] 
DHCP4_MULTI_THREADING_INFO enabled: no, number of threads: 0, queue size: 0
2022-01-12 07:28:32.200 INFO [kea-dhcp4.dhcp4/111933.140670479808384] 
DHCP4_STARTED Kea DHCPv4 server version 2.0.1 started

-------------------------------------

Jan 12 07:29:51 server1.example.net dhcpd[111960]: Listening on 
LPF/br2/4a:0a:59:5f:ba:1a/172.16.2.0/24
Jan 12 07:29:51 server1.example.net dhcpd[111960]: Sending on 
LPF/br2/4a:0a:59:5f:ba:1a/172.16.2.0/24
Jan 12 07:29:51 server1.example.net dhcpd[111960]: Listening on 
LPF/br1/22:fc:69:4b:1b:e7/172.16.1.0/24
Jan 12 07:29:51 server1.example.net dhcpd[111960]: Sending on 
LPF/br1/22:fc:69:4b:1b:e7/172.16.1.0/24
Jan 12 07:29:51 server1.example.net dhcpd[111960]: Listening on 
LPF/br0/3a:2e:7d:f0:bf:a5/172.16.0.0/24
Jan 12 07:29:51 server1.example.net dhcpd[111960]: Sending on 
LPF/br0/3a:2e:7d:f0:bf:a5/172.16.0.0/24

-------------------------------------

# ip a

[...]

13: br0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue 
state DOWN group default qlen 1000
     link/ether 3a:2e:7d:f0:bf:a5 brd ff:ff:ff:ff:ff:ff
     inet 172.16.0.1/24 brd 172.16.0.255 scope global noprefixroute br0
        valid_lft forever preferred_lft forever
     inet6 fd00::172:16:0:1/64 scope global noprefixroute
        valid_lft forever preferred_lft forever
     inet6 fe80::5aa9:2c40:e5e3:24ff/64 scope link noprefixroute
        valid_lft forever preferred_lft forever
14: br1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue 
state DOWN group default qlen 1000
     link/ether 22:fc:69:4b:1b:e7 brd ff:ff:ff:ff:ff:ff
     inet 172.16.1.1/24 brd 172.16.1.255 scope global noprefixroute br1
        valid_lft forever preferred_lft forever
     inet6 fd00::172:16:1:1/64 scope global tentative noprefixroute
        valid_lft forever preferred_lft forever
     inet6 fe80::a108:1654:6669:42c4/64 scope link tentative noprefixroute
        valid_lft forever preferred_lft forever
15: br2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue 
state DOWN group default qlen 1000
     link/ether 4a:0a:59:5f:ba:1a brd ff:ff:ff:ff:ff:ff
     inet 172.16.2.1/24 brd 172.16.2.255 scope global noprefixroute br2
        valid_lft forever preferred_lft forever
     inet6 fd00::172:16:2:1/64 scope global tentative noprefixroute
        valid_lft forever preferred_lft forever
     inet6 fe80::d83f:d82c:beef:fd66/64 scope link tentative noprefixroute
        valid_lft forever preferred_lft forever