OpenWrt/LEDE Project

  • Status Unconfirmed
  • Percent Complete
  • Task Type Bug Report
  • Category Base system
  • Assigned To No-one
  • Operating System All
  • Severity Medium
  • Priority Very Low
  • Reported Version openwrt-19.07
  • Due in Version Undecided
  • Due Date Undecided
  • Private
Attached to Project: OpenWrt/LEDE Project
Opened by oofnikj - 28.01.2021

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

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

According to 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.


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