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76a2007b64
Currently Lighthouse will remain uncontactable if users port forward a port that is not the same as the one they are listening on. For example, if Lighthouse runs with port 9000 TCP/UDP locally but a router is configured to pass 9010 externally to the lighthouse node on 9000, other nodes on the network will not be able to reach the lighthouse node. This occurs because Lighthouse does not update its ENR TCP port on external socket discovery. The intention was always that users should use `--enr-tcp-port` to customise this, but this is non-intuitive. The difficulty arises because we have no discovery mechanism to find our external TCP port. If we discovery a new external UDP port, we must guess what our external TCP port might be. This PR assumes the external TCP port is the same as the external UDP port (which may not be the case) and thus updates the TCP port along with the UDP port if the `--enr-tcp-port` flag is not set. Along with this PR, will be added documentation to the Lighthouse book so users can correctly understand and configure their ENR to maximize Lighthouse's connectivity. This relies on https://github.com/sigp/discv5/pull/166 and we should wait for a new release in discv5 before adding this PR. |
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Lighthouse Book
Contains an mdBook that serves as the primary source of Lighthouse user documentation.
The book is hosted at lighthouse-book.sigmaprime.io
Usage
The mdBook docs are the best source of information for building the book.
Example
- Install mdBook:
$ cargo install mdbook - Build the book, open it in a browser and build after file changes:
$ mdbook serve --open