IPv6 support in ntpd broken by interface with large index

Solution In Progress - Updated -

Issue

  • ntpd is not working.
  • Some addresses are not listed during the start-up.
  • ntpq output is:
# ntp -pn
    remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
<IPv6 NTP server1> .INIT.          16 u    -   16    0    0.000    0.000   0.000
<IPv6 NTP server2> .INIT.          16 u    -   16    0    0.000    0.000   0.000

Environment

  • Red Hat Enterprise Linux (RHEL) 7.9
  • ntp

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