3

I wonder, since Ethereum is based on a decentralized p2p network, how does it get through the NAT Firewall? There is no server Ethereum can connect on, so there has to be a way for nodes to accept incoming connections. How does Ethereum do that?

Thanks in advance, rpanic

Improve this question
1

Right now AFAICT it basically does not. I might be wrong but I think the network health is relying on several things:

  • UPnP if it's available, to automatically forward the port to listen on
  • Churn in the list of endpoints in the DHT, so old endpoints are dropped shortly after the ephemeral mapping goes.
  • Nodes hosted with ports forwarded or in DMZ etc.

Otherwise I don't think NAT is handled explicitly.

Improve this answer
2
  • Well that basically answers my question. I think with this 3 methods a network can indeed function reliable. Thank you :)
    – RPanic
    Sep 5 '18 at 11:47
  • @RPanic I think it can yes, but if it actually does, well I am researching that..
    – Sentinel
    Sep 5 '18 at 11:55
0

RPC's (request–response protocol) and ports. Common parity port for the network is 30303 and RPC will have a different port.

Improve this answer
1
  • Does that mean you have to configure port forwarding?
    – RPanic
    May 15 '18 at 8:27

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.