IANA Reference to hopopt as a protocol

Does anyone have an explanation for the IPv6 hopopt appearing as protocol
value 0 in http://www.iana.org/assignments/protocol-numbers?

--Dave

* David Edelman

Does anyone have an explanation for the IPv6 hopopt appearing as protocol
value 0 in Protocol Numbers?

It's defined in RFC 2460, section 4.3. Which is linked to from the
reference column of the page you linked to...

Tore