check_mk using ssh tunnels/ssh proxy

Question

I'm trying to setup monitoring with check_mk and wanted to see if this is possible. My issue is as follows:

Layout:
Monitoring server:  1.1.1.1
Bastion server:     2.2.2.2
Host A:             localhost:1234
Host B:             localhost:5678

• All the machines are linux.
• The Monitoring server can connect to the Bastion server.
• The Bastion server can connect to all the host machines via ssh tunnels.

Is it possible to setup check_mk with the above setup?