Global SLIR_RA: Only when RA options are received in the order of prefix length, prefix flag, valid lifetime, default lifetime and prefix address,
_PLR_, _PFR_, _VLTR_, _PLTR_ and _PAR_ is correctly set.
Other case, these registers are not valid.

To solve this errata, You should use a IPRAW6 mode SOCKETn opened with Sn_MR_IPRAW6 and set the _Sn_PNR_ to ICMPv6 number 58.
This SOCKETn can be received a RA message or other ICMPv6 message, and a ICMPv6 message can be selectively filtered out by _ICMP6BLKR_.
For more details, Refer to "IPv6 Auto-configuration" document.
Global SLIR_RS: Only when the first received RA option is the source link-layer address(0x01) and the second is prefix information(0x03),
and the prefix information is in the order of prefix length, prefix flag, valid lifetime, default lifetime and prefix address,
_PLR_, _PFR_, _VLTR_, _PLTR_ and _PAR_ is correctly set.
Other case, these registers are not valid.

To solve this errata,
You should use a IPRAW6 mode SOCKETn opened with Sn_MR_IPRAW6 and set the _Sn_PNR_ to ICMPv6 number 58.
This SOCKETn can be received a RA message or other ICMPv6 message, and a ICMPv6 message can be selectively filtered out by _ICMP6BLKR_.
For more details, Refer to "IPv6 Auto-configuration" document.