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FS#3600 - [odhcp6c] prefix exclude sanity check fails for prefix length > 64 #8629

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openwrt-bot opened this issue Jan 28, 2021 · 1 comment
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flyspray release/19.07 pull request/issue targeted (also) for OpenWrt 19.07 release

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@openwrt-bot
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oofnikj:

odhcp6c fails to request a delegated prefix when the server returns an excluded prefix of length > 64.

According to [[https://tools.ietf.org/html/rfc6603#section-4.2|RFC 6603]]:

o prefix-len: The length of the excluded prefix in bits. The
prefix-len MUST be between 'OPTION_IAPREFIX prefix-length'+1 and

However, values for excluded prefix length > 64 fail sanity, resulting in odhcp6c dropping the PD from the request.

The following patch fixes the issue.

@aparcar aparcar added the release/19.07 pull request/issue targeted (also) for OpenWrt 19.07 release label Feb 22, 2022
@ynezz
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ynezz commented May 24, 2022

OpenWrt 19.07 release is EOL, try to reproduce the issue with latest supported release and feel free to ask for issue reopening if the problem is still present, thanks.

@ynezz ynezz closed this as completed May 24, 2022
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Labels
flyspray release/19.07 pull request/issue targeted (also) for OpenWrt 19.07 release
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