IPv6-ICMP-MIB, defined in RFC 2466, contains statistics of ICMPv6 messages that are sent and received by devices. This MIB can be used to query ICMPv6 message statistics.
Root directory:
iso(1).org(3).dod(6).internet(1).mgmt(2).mib-2(1).ipv6IcmpMIB(56)