Opened 3 years ago

#18344 new defect

odhcp IPv6 PD issue

Reported by: anonymous Owned by: developers
Priority: normal Milestone: Barrier Breaker 14.07
Component: packages Version: Barrier Breaker 14.07
Keywords: Cc:


odhcpd doesn't provide an IPv6 PD if there's an alias interface with a static /64 IPv6 address. Example:


  • public /56 provided via WAN DHCPv6
  • assignment-length 62

LAN_2 (br-lan):

  • fixed ULA /64 IPv6 address

In that case an IA-PD request from a DHCPv6 client (ISC dhcp client) is answered with "IA_PD status code NoPrefixAvail".

When LAN_2 is changed to:

  • fixed ULA /62 IPv6 address

odhcpd provides a prefix for both networks.

It seems that odhcpd returns the no-prefix error if it can't provide prefixes for all networks or if it can't assign a prefix for a single network out of multiple ones. It should return the error only if it can't assign any prefix at all.

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