I have read on the StackExchange how to build a private blockchain in LAN with private IPs and geth clients.
As I understood to communicate in lan the geth peers need for P2P communication the form of "enode://pubkey@ip:port" But still they are using the por 30303 and JSON-HTTP or JSON-RPC. But can this communication be made more secure and also the interraction with the WebBrowsers (MetaMask) and communication between peers like with https. Because I see this as an Security Issue when Geth client so communicates. I can make the peers fix but it is also a Problem.
Do you have some proposals to this topic?
Thanks in advance.