some question about containerPort

[malixian]

What are the steps to reproduce this issue?

1.create two pod with the same yaml to run mpi workload in that two pod 2.lunch a container in one pod using "kubectl exec -it xx-pod /bin/bash" 3.by ssh to lunch another pod but error ssh: connect to host 172.30.48.34 port 22: Connection refused, meanwhile i can't ssh to the host (ip is 10.18.127.3) due to 'ssh: connect to host 10.18.127.3 port 22: Network is unreachable'

yaml is :

apiVersion: v1
kind: Pod
metadata:
  name: mpi-test-4
spec:
  containers:
    - command:
        - /bin/sh
        - -c
        - |
          mkdir -p /var/run/sshd; /usr/sbin/sshd -D; sleep 600;
      image: volcanosh/example-mpi:0.0.1
      name: mpi-test-4
      ports:
        - containerPort: 22
          name: mpijob-port
      workingDir: /home
  nodeSelector:
     kubernetes.io/hostname: k8s03
  restartPolicy: OnFailure