ndp: fix macOS IPv6 compatibility by using link-local source addresses #242
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
macOS ignores NDP packets that don't originate from link-local addresses, causing IPv6 connectivity issues with odhcpd. This change ensures NDP packets (Neighbor Advertisements and ICMP Echo Requests) are sent using link-local source addresses for RFC 4861 compliance. Changes: - Add odhcpd_send_with_src() to allow explicit source address control - Add odhcpd_get_interface_linklocal_addr() to find link-local addresses - Update send_na() and ping6() to prefer link-local source addresses - Maintain backward compatibility with fallback behavior Fixes: openwrt/openwrt#7561
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
macOS ignores NDP packets that don't originate from link-local addresses, causing IPv6 connectivity issues with odhcpd. This change ensures NDP packets (Neighbor Advertisements and ICMP Echo Requests) are sent using link-local source addresses for RFC 4861 compliance.
Changes:
Fixes: openwrt/openwrt#7561 #202