The pods on Kubernetes cannot access the pod IP addresses on other's nodes.

[opencmit2]

When I deploy Calico in Kubernetes, the cluster network works fine when I use the ipip mode. However, when I use the vxlan network, some pods on certain nodes cannot ping each other. I want to know ,what problem with me???

when i use calico vxlan mode
server A pod A ping serverA pod B's ip ok
server A pod A ping serverB pod B's ip fault

when i use calico ipip mode
server A pod A ping serverA pod B's ip ok
server A pod A ping serverB pod B 's ip ok

[brownz11]

What Kernel and OS are you running?

This sounds like you may be running into https://docs.rke2.io/known_issues#calico-with-vxlan-encapsulation

Can try an quick fix via rancher/rke2#1541 (comment)

[mazdakn]

@opencmit2 please fill in the issue template fully so we can understand your cluster better.