Change to prefer IPv6 link local address #27981
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The IPv6 LLA of the Commissioner is almost always valid. On the other hand, Commissioner's ULA updates sometimes don't work well, so it's very rare that there is no ULA. At this time, the Commissioner mDNS resolves IPv6 addresses through Commissionable Node Discovery, - If it selects ULA address, "Network is unreachable" error occurs. - If it selects LLA address, it works well. Through IPv6 source address selection, - If IPv6 destination address is LLA, source address is selected as LLA. - If IPv6 destination address is ULA, source address is selected as ULA. The solution is simple. The Commissioner should prefer IPv6 LLA over ULA among mDNS resolved IPv6 addresses. The same problem occurred on android and darwin platforms, and it is possible that this problem is common to all platforms. So it's better to fix that for all platforms. Signed-off-by: Youngho Yoon <[email protected]>
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Jul 18, 2023
erwinpan1
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Jul 21, 2023
The IPv6 LLA of the Commissioner is almost always valid. On the other hand, Commissioner's ULA updates sometimes don't work well, so it's very rare that there is no ULA. At this time, the Commissioner mDNS resolves IPv6 addresses through Commissionable Node Discovery, - If it selects ULA address, "Network is unreachable" error occurs. - If it selects LLA address, it works well. Through IPv6 source address selection, - If IPv6 destination address is LLA, source address is selected as LLA. - If IPv6 destination address is ULA, source address is selected as ULA. The solution is simple. The Commissioner should prefer IPv6 LLA over ULA among mDNS resolved IPv6 addresses. The same problem occurred on android and darwin platforms, and it is possible that this problem is common to all platforms. So it's better to fix that for all platforms. Signed-off-by: Youngho Yoon <[email protected]>
jadhavrohit924
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Aug 14, 2023
The IPv6 LLA of the Commissioner is almost always valid. On the other hand, Commissioner's ULA updates sometimes don't work well, so it's very rare that there is no ULA. At this time, the Commissioner mDNS resolves IPv6 addresses through Commissionable Node Discovery, - If it selects ULA address, "Network is unreachable" error occurs. - If it selects LLA address, it works well. Through IPv6 source address selection, - If IPv6 destination address is LLA, source address is selected as LLA. - If IPv6 destination address is ULA, source address is selected as ULA. The solution is simple. The Commissioner should prefer IPv6 LLA over ULA among mDNS resolved IPv6 addresses. The same problem occurred on android and darwin platforms, and it is possible that this problem is common to all platforms. So it's better to fix that for all platforms. Signed-off-by: Youngho Yoon <[email protected]>
andy31415
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Aug 21, 2023
The IPv6 LLA of the Commissioner is almost always valid. On the other hand, Commissioner's ULA updates sometimes don't work well, so it's very rare that there is no ULA. At this time, the Commissioner mDNS resolves IPv6 addresses through Commissionable Node Discovery, - If it selects ULA address, "Network is unreachable" error occurs. - If it selects LLA address, it works well. Through IPv6 source address selection, - If IPv6 destination address is LLA, source address is selected as LLA. - If IPv6 destination address is ULA, source address is selected as ULA. The solution is simple. The Commissioner should prefer IPv6 LLA over ULA among mDNS resolved IPv6 addresses. The same problem occurred on android and darwin platforms, and it is possible that this problem is common to all platforms. So it's better to fix that for all platforms. Signed-off-by: Youngho Yoon <[email protected]> Co-authored-by: Youngho Yoon <[email protected]>
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Aug 28, 2023
The project-chip#27981 PR was merged, but it didn't follow IpScore's comments. // IP addess "suitability" // - Larger value means "more suitable" // - Enum ordered ascending for easier read. Note however that order of // checks MUST match in ScoreIpAddress below. enum class IpScore : unsigned This change matches the order of ScoreIpAddress with the order of IpScore enum. Signed-off-by: Youngho Yoon <[email protected]>
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Aug 29, 2023
The project-chip#27981 PR was merged, but it didn't follow IpScore's comments. // IP addess "suitability" // - Larger value means "more suitable" // - Enum ordered ascending for easier read. Note however that order of // checks MUST match in ScoreIpAddress below. enum class IpScore : unsigned This change matches the order of ScoreIpAddress with the order of IpScore enum. Signed-off-by: Youngho Yoon <[email protected]>
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Aug 29, 2023
The #27981 PR was merged, but it didn't follow IpScore's comments. // IP addess "suitability" // - Larger value means "more suitable" // - Enum ordered ascending for easier read. Note however that order of // checks MUST match in ScoreIpAddress below. enum class IpScore : unsigned This change matches the order of ScoreIpAddress with the order of IpScore enum. Signed-off-by: Youngho Yoon <[email protected]>
HunsupJung
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Oct 23, 2023
The project-chip#27981 PR was merged, but it didn't follow IpScore's comments. // IP addess "suitability" // - Larger value means "more suitable" // - Enum ordered ascending for easier read. Note however that order of // checks MUST match in ScoreIpAddress below. enum class IpScore : unsigned This change matches the order of ScoreIpAddress with the order of IpScore enum. Signed-off-by: Youngho Yoon <[email protected]>
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The IPv6 LLA of the Commissioner is almost always valid. On the other hand, Commissioner's ULA updates sometimes don't work well, so it's very rare that there is no ULA.
At this time, the Commissioner mDNS resolves IPv6 addresses through Commissionable Node Discovery,
Through IPv6 source address selection,
The solution is simple. The Commissioner should prefer IPv6 LLA over ULA among mDNS resolved IPv6 addresses. The same problem occurred on android and darwin platforms, and it is possible that this problem is common to all platforms. So it's better to fix that for all platforms.