CAUTION: macvlan sub-interfaces cannot access parent directly where the connecivity between pod and its hosting host will fail

# create another pod for test
kubectl run check --image alpine -- sleep infinity

# check IP address of the pods and their nodes
kubectl get po -o custom-columns=NAME:metadata.name,IP:status.podIP,HOST:status.hostIP
# here is the output for example
NAME             IP              HOST
check            10.244.187.36   10.67.109.148
macvlan-static   10.244.187.34   10.67.109.148

# the IP of the extra network infterface
STATIC_IP=$(kubectl exec macvlan-static -- ip a s dev net1 | grep inet | awk '{print $2}' | sed s#/.*##)

# check pod to pod connectivity
# should be OK via primary network interface
kubectl exec macvlan-static -- ping -c3 10.244.187.34
kubectl exec check -- ping -c3 10.244.187.36
# it will be failed cause there is no route
kubectl exec check -- ping -c3 $STATIC_IP

# current host IP
HOST_IP=$(ip r get 1 | awk '{print $7}')
echo $HOST_IP

# pod to node and reversely
kubectl exec macvlan-static -- ping -c3 -I eth0 $HOST_IP
kubectl exec macvlan-static -- ping -c3 -I net1 $HOST_IP
ping -c3 10.244.187.34
ping -c3 $STATIC_IP

# you can find a host out side of the cluster, and check again