If mdns obfuscation is enabled, the stun address "MUST NOT be considered redundant" when it is equal to local socket address. Reference: https://datatracker.ietf.org/doc/html/draft-ietf-mmusic-mdns-ice-candidates-03#section-3.1.2.2 This fixes Bug: webrtc:13426 Change-Id: I28e981fd1b8818f6f8294bc3fedf23b8d9146819 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/285421 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#38774}