I try to install Kubernetes with kubeadm. Moreover, I install a pod network with
kubectl apply -f https://git.io/weave-kubeas recommended on http://kubernetes.io/docs/admin/addons/ when you click on “Weave Net”. It works, but I have two interface cards per node: One to the Internet and one for the LAN between all nodes. How can I assure that Weave uses the interface to the LAN?
On each node, the own /etc/hostname should resolve to an internal IP through an entry in /etc/hosts. This way, Kubernetes uses the internal network for inter-node communication by default.