Background

With proServer 2.0 ("IPv6-only"), the multiplexing of the SSH connection via the jump host may not work reliably. This can be remedied with a special SSH configuration for Ansible.

Activate your own SSH configuration in ansible.cfg

[ssh_connection] ssh_args = -F custom_ssh_config

Make the correct settings in custom_ssh_config

Host ssh-jumphost.karlsruhe.punkt.de
  User jumping
 ForwardAgent yes
 ControlMaster auto
 ControlPersist 10m
 ControlPath ~/.ansible/cp/%C

Host *.proserver.punkt.de
  ProxyJump ssh-jumphost.karlsruhe.punkt.de
  ForwardAgent yes
 ControlMaster auto
 ControlPersist 1m
 ControlPath ~/.ansible/cp/%C

We would like to thank our customer gesagt.getan. GmbH.