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I can't seem to find a config option for discarding all forwards.

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There's deliberately no way to refuse to forward payments over "public" channels because that's the definition of a "public" channel - one which you are saying you want to accept forwards over.

If you have opted to open private channels (not announced) then accept_forwards_to_priv_channels is what you want (and keep the channels private!).

You can read more about that in our API docs. https://docs.rs/lightning/0.0.113/lightning/util/config/struct.UserConfig.html#structfield.accept_forwards_to_priv_channels

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  • This question was originally asked by deb.dasit2013 and answered by Matt Corallo on Discord
    – Conor
    Feb 5 at 17:28
  • There is a bit of a leap in the explanation between public channels being meant for forwarding, and the recommended setting for private channels. Could you perhaps fill in a bit more context?
    – Murch ♦
    Feb 6 at 21:01
  • By default LDK opens private channels unless setting the announced_channel flag to true. There is no option for discarding all forwards for publicly announced channels. A user must ensure the channel is private from the outset and accept_forwards_to_priv_channels, generally HTLC intercept will be supported soon.
    – Conor
    Feb 7 at 0:00

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