net: Enable local address discovery when bind=0.0.0.0 is used #34484

1. 
   BuilderFred commented at 4:03 pm on February 2, 2026: none

   Motivation

   The Discover() function in init.cpp was only being called if bind_on_any was true. However, bind_on_any is set to false if an explicit -bind argument is provided, even if that argument is -bind=0.0.0.0 (which effectively binds to all interfaces).

   This behavior prevented local address discovery when a user explicitly configured -bind=0.0.0.0, which is common in containerized environments or when users want to be explicit about interface binding.

   Fixes #31293.

   Solution

   Updated the logic in init.cpp to check if any of the provided bind addresses (either via -bind or -whitebind) are “any” addresses (0.0.0.0 or ::). If so, we enable discovery.

   Testing

   • Validated that Discover() is called when -bind=0.0.0.0 is used.
   • Verified standard behavior (no bind, specific bind) remains unchanged.
2. net: Enable local address discovery when bind=0.0.0.0 is used 227ed708ca
3. DrahtBot added the label P2P on Feb 2, 2026
4. 
   DrahtBot commented at 4:03 pm on February 2, 2026: contributor

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5. 
   maflcko commented at 4:09 pm on February 2, 2026: member

   dupe
6. maflcko closed this on Feb 2, 2026

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Contributors
BuilderFred DrahtBot maflcko

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