Thank for the quick response. I have now built an OpenStack image with this kernel,
ubuntu@node-3-9dettelsau:~$ grep IPIP /boot/config-4.4.0-1034-kvm CONFIG_NET_IPIP=y ubuntu@node-3-9dettelsau:~$ uname -r 4.4.0-1034-kvm ubuntu@node-3-9dettelsau:~$ I can definitely confirm this solved my problem: $ kubectl logs calico-node-89th5 -n kube-system calico-node 2018-09-04 20:25:15.042 [INFO][9] startup.go 251: Early log level set to info 2018-09-04 20:25:15.042 [INFO][9] startup.go 271: Using HOSTNAME environment (lowercase) for node name 2018-09-04 20:25:15.042 [INFO][9] startup.go 279: Determined node name: node-2-9dettelsau 2018-09-04 20:25:15.060 [INFO][9] startup.go 101: Skipping datastore connection test 2018-09-04 20:25:15.063 [INFO][9] startup.go 352: Building new node resource Name="node-2-9dettelsau" 2018-09-04 20:25:15.063 [INFO][9] startup.go 367: Initialize BGP data 2018-09-04 20:25:15.064 [INFO][9] startup.go 564: Using autodetected IPv4 address on interface ens3: 10.32.192.57/24 2018-09-04 20:25:15.064 [INFO][9] startup.go 432: Node IPv4 changed, will check for conflicts 2018-09-04 20:25:15.067 [INFO][9] startup.go 627: No AS number configured on node resource, using global value 2018-09-04 20:25:15.388 [INFO][9] startup.go 510: FELIX_IPV6SUPPORT is false through environment variable ... 2018-09-04 20:25:57.938 [INFO][78] health.go 150: Overall health summary=&health.HealthReport{Live:true, Ready:true} 2018-09-04 20:25:58.920 [INFO][78] int_dataplane.go 733: Applying dataplane updates 2018-09-04 20:25:58.920 [INFO][78] ipsets.go 222: Asked to resync with the dataplane on next update. family="inet" 2018-09-04 20:25:58.920 [INFO][78] ipsets.go 253: Resyncing ipsets with dataplane. family="inet" 2018-09-04 20:25:58.923 [INFO][78] ipsets.go 295: Finished resync family="inet" numInconsistenciesFound=0 resyncDuration=2.5291ms 2018-09-04 20:25:58.923 [INFO][78] int_dataplane.go 747: Finished applying updates to dataplane. msecToApply=3.040977 2018-09-04 20:26:02.876 [INFO][78] health.go 150: Overall health summary=&health.HealthReport{Live:true, Ready:true} Thanks! Looking forward to see this in the next build -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1790605 Title: please include the kernel module IPIP To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-images/+bug/1790605/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs