When I try to connect to node manually, I get error:
```
/ # ipfs swarm connect /dns4/ipfs1/tcp/4001/ipfs/QmXeiaSdM8J6mGhNYpNL68tU7yqRM5GXbJggUFzmpw4Gx4
Error: connect QmXeiaSdM8J6mGhNYpNL68tU7yqRM5GXbJggUFzmpw4Gx4 failure: failed to dial : all dials failed
  * [/ip4/172.18.0.2/tcp/4001] dial tcp4 172.18.0.2:4001: connect: no route to host
```