How to properly connect local node without internet peer?

[d47081]

I want to connect another machine in the local network without internet peer at middle point.
As understand, on target node, I must provide host/port in the Listen section, but this comment confusing a bit:

listeners in order to accept incoming peerings from non-local nodes

  # Listen addresses for incoming connections. You will need to add
  # listeners in order to accept incoming peerings from non-local nodes.
  # Multicast peer discovery will work regardless of any listeners set
  # here. Each listener should be specified in URI format as above, e.g.
  # tls://0.0.0.0:0 or tls://[::]:0 to listen on all interfaces.
  Listen: []

But there is no other way but tls://192.x.x.x:123 in Listen on target, and tls://192.x.x.x:123 as Peers on connecting node?
Or how?