I have a fresh docker installation running on Ubuntu 18.04 LTE
When I try to create a new network it fails:
$ docker network create test
Error response from daemon: could not find an available, non-overlapping IPv4 address pool among the defaults to assign to the network
$ docker network ls
NETWORK ID NAME DRIVER SCOPE
fed3902b248e bridge bridge local
979af7e91a80 host host local
5b17cb218199 none null local
ifconfig says:
docker0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 172.17.0.1 netmask 255.255.0.0 broadcast 172.17.255.255
ether 02:42:88:98:67:9c txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens160: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.21.196.46 netmask 255.255.255.0 broadcast 172.21.196.255
inet6 fe80::250:56ff:fea4:2e24 prefixlen 64 scopeid 0x20<link>
ether 00:50:56:a4:2e:24 txqueuelen 1000 (Ethernet)
RX packets 3949 bytes 460088 (460.0 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 3004 bytes 529203 (529.2 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens192: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.21.136.46 netmask 255.255.255.0 broadcast 172.21.136.255
inet6 fe80::250:56ff:fea4:1267 prefixlen 64 scopeid 0x20<link>
ether 00:50:56:a4:12:67 txqueuelen 1000 (Ethernet)
RX packets 702 bytes 71397 (71.3 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 121 bytes 11141 (11.1 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Lokale Schleife)
RX packets 1795 bytes 297877 (297.8 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1795 bytes 297877 (297.8 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
routes:
0.0.0.0 172.21.136.254 0.0.0.0 UG 20101 0 0 ens192
10.0.0.0 172.21.196.254 255.0.0.0 UG 200 0 0 ens160
129.247.0.0 172.21.196.254 255.255.0.0 UG 200 0 0 ens160
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 ens160
172.16.0.0 172.21.196.254 255.240.0.0 UG 200 0 0 ens160
172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker0
172.21.136.0 0.0.0.0 255.255.255.0 U 101 0 0 ens192
172.21.196.0 0.0.0.0 255.255.255.0 U 100 0 0 ens160
192.108.54.0 172.21.196.254 255.255.255.0 UG 200 0 0 ens160
192.168.0.0 172.21.196.254 255.255.0.0 UG 200 0 0 ens160
iptables:
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy DROP)
target prot opt source destination
DOCKER-USER all -- anywhere anywhere
DOCKER-ISOLATION-STAGE-1 all -- anywhere anywhere
ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED
DOCKER all -- anywhere anywhere
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
Chain DOCKER (1 references)
target prot opt source destination
Chain DOCKER-ISOLATION-STAGE-1 (1 references)
target prot opt source destination
DOCKER-ISOLATION-STAGE-2 all -- anywhere anywhere
RETURN all -- anywhere anywhere
Chain DOCKER-ISOLATION-STAGE-2 (1 references)
target prot opt source destination
DROP all -- anywhere anywhere
RETURN all -- anywhere anywhere
Chain DOCKER-USER (1 references)
target prot opt source destination
RETURN all -- anywhere anywhere
Any ideas what could be wrong?