NetBSD-SA2021-001 Predictable ID disclosures in IPv4 and IPv6
  NetBSD-SA2020-002 Specific ICMPv6 error message packet can crash the system
  NetBSD-SA2019-004 IPv6 neighbor cache leak on expiration
  NetBSD-SA2018-004 Remote Memory Corruption in IPv6
  NetBSD-SA2018-003 Remote DoS in IPsec (IPv6)
  NetBSD-SA2008-015 ICMPv6 Packet Too Big messages
  NetBSD-SA2008-013 IPv6 Neighbor Discovery Protocol
  NetBSD-SA2008-011 ICMPv6 MLD query
  NetBSD-SA2008-003 IPsec in IPv6 Denial of Service
  NetBSD-SA2007-005 IPv6 Type 0 Routing Header
  NetBSD-SA2006-016 IPv6 socket options can crash the system
  NetBSD-SA2004-002 Inconsistent IPv6 path MTU discovery handling