Add note for dual-stack listening on same port - #771
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alexandratran merged 4 commits intoJul 14, 2026
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Add note clarifying behavior for listening on the same port in dual-stack mode, when the IPv6 wildcard listener (
::) is configured.fixes #770
preview: https://doc-teku-git-fork-alexandratran-770-d-7a1e8b-consensys-ddffed67.vercel.app/development/how-to/find-and-connect/configure-ipv6#listen-over-both-ipv4-and-ipv6-dual-stack
Note
Low Risk
Documentation-only changes to IPv6 dual-stack guidance; no runtime or code impact.
Overview
Updates
configure-ipv6.mdin the dual-stack section: clearer wording for--p2p-interface(comma-separated IPv4/IPv6, with0.0.0.0,::as the all-interfaces example) and a small phrasing tweak for default ports.Adds a "Listen on the same port" admonition: when IPv6 P2P ports match their IPv4 counterparts and
--p2p-interfaceincludes::, Teku uses one IPv6 wildcard listener per port that accepts both IPv4 and IPv6 traffic—separately for TCP, UDP discovery, and QUIC.Reviewed by Cursor Bugbot for commit 4a1c0bb. Bugbot is set up for automated code reviews on this repo. Configure here.