RFC 9098: Operational Implications of IPv6 Extension Headers
It took more than seven years to publish an obvious fact as an RFC: IPv6 extension headers are a bad idea (RFC 9098 has a much more polite title or it would never get published).
It took more than seven years to publish an obvious fact as an RFC: IPv6 extension headers are a bad idea (RFC 9098 has a much more polite title or it would never get published).