Other peers can´t see my peers hosted in my local VM

#### Version information:
Peers 1 and 2 are running:
```
go-ipfs version: 0.4.22-
Repo version: 7
System version: amd64/windows
Golang version: go1.12.7
```

Peer 3 is running:
```
go-ipfs version: 0.4.22-
Repo version: 7
System version: amd64/linux
Golang version: go1.12.7
```

#### Description:

I successfully created a swarm key and configured 3 peers.

Peer 1 is connected to peer 2, peer 2 is connected to peer 3, peer 3 runs inside a VM connected to peer 2 connected through the virtualbox network adapter.

They can only discover files if they are directly connected to the peer. I.E. Peer 1 can´t access files of Peer 3 and Peer 3 can´t access files of Peer 1. Peer 3 is not in the list of peers for Peer 1 and vice versa.
```ipfs cat``` or ```ipfs get``` just get stuck.

I´ve tried connecting more peers to the network in different devices, behavior is the same, host peers can connect and auto-discover each other, but they can only see the client (VM hosted) nodes in their physical machine.

I think the problem is that I connect to the VM hosted peer using the virtualbox adapter, and maybe, the other clients are trying to connect through the same IP which they can´t reach.
Is that how peer discovery works? by sharing the IP of all the nodes in the exact same way I connect to them?