hello, a slightly narrower test case with one node. 1. deploy pingtest to nodes A,B,C,D (with resp. subnets

10.42.0.1/24

,

10.42.1.1/24

,

10.42.2.1/24

,

10.42.3.1/24

) 2.

kubectl -n pingtest exec -it {pod-B} -- ping {IP-A,C,D}

=> works!! 3.

kubectl -n pingtest exec -it {pod-A,C,D} -- ping {IP-B}

=> works!! 4. reboot B 5.

kubectl get nodes -o wide

=> shows B is

Ready

6.

kubectl -n pingtest exec -it {pod-B} -- ping {IP-A,C,D}

=> doesnt work!! 7.

kubectl -n pingtest exec -it {pod-A,C,D} -- ping {IP-B}

=> doesnt work!! 8.

systemctl restart k3s-agent.service

on node B 9.

kubectl -n pingtest exec -it {pod-B} -- ping {IP-A,C,D}

=> works!! 10.

kubectl -n pingtest exec -it {pod-A,C,D} -- ping {IP-B}

=> works!!