thibaultmol: if your network has MDNS enabled (e.g. some corporate networks block MDNS) then it should find them.

go and js-ipfs both have MDNS discovery enabled by default

https://github.com/ipfs/go-ipfs/blob/master/docs/config.md#discoverymdnsenabled

https://github.com/ipfs/js-ipfs/blob/master/docs/CONFIG.md#mdns