c56c6100f2
and RFC4286 (Multicast Router Discovery.) and as shown in the IANA parameters page available at: https://www.ietf.org/assignments/icmpv6-parameters/icmpv6-parameters.txt Also make the array be explicitly 256 entries long, one for each possible code, which will detect attempts to insert names without deleting the place holder (and mean a good solid NULL de-ref if too many place holders are deleted, rather than just random results.)