RFC 3971, "SEcure Neighbor Discovery (SEND)", March 2005Source of RFC: send (int)
Errata ID: 3537
Status: Held for Document Update
Reported By: Alfred Hoenes
Date Reported: 2007-05-14
Held for Document Update by: Ralph Droms
Date Held: 2013-03-10
Section 6.4.2 says:
The ICMP length (derived from the IP length) MUST be 8 or more octets.
It should say:
The ICMP length (derived from the IP length) MUST be greater than 8 octets.
Similar to the rationale for Errata ID 3536, I suspect that
the Certification Path Advertisement Message will always include
at least one Option.