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gh-161100: Fix IPv6Interface.is_unspecified for IPv4-mapped addresses - #161101
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…resses Defer to IPv6Address.is_unspecified, as the is_loopback override does, so ::ffff:0.0.0.0/128 interfaces are unspecified like the address.
gpshead
marked this pull request as ready for review
November 1, 2026 18:05
gpshead
enabled auto-merge (squash)
November 1, 2026 18:06
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Thanks @gpshead for the PR 🌮🎉.. I'm working now to backport this PR to: 3.15. |
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GH-161136 is a backport of this pull request to the 3.15 branch. |
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Make
IPv6Interface.is_unspecifieddefer toIPv6Address.is_unspecified, as the neighbouringis_loopbackoverride already does, so IPv4-mapped::ffff:0.0.0.0/128interfaces are unspecified like the address itself. Results for unmapped addresses are unchanged. The tests also compare everyis_*property ofIPv4Interfacewith its IPv4-mappedIPv6Interface.Fixes #161100
ANT-2026-DIFE27WF
ipaddress.IPv6Interface.is_unspecifiedis False for IPv4-mapped::ffff:0.0.0.0#161100