[Cerowrt-devel] Wicked OT: 240.0.0.0/4 netblock
chromatix99 at gmail.com
Fri Oct 19 14:54:00 EDT 2018
> On 19 Oct, 2018, at 9:36 pm, Rich Brown <richb.hanover at gmail.com> wrote:
> MY QUESTION: I have always believed that this netblock is not routable. Is this true? (A simple yes/no answer would be sufficient.)
According to https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml the 240/4 netblock is:
NOT valid as a source or destination address for packets between devices.
NOT globally reachable.
IS "reserved by protocol":
o Reserved-by-Protocol - A boolean value indicating whether the
special-purpose address block is reserved by IP, itself. This
value is "TRUE" if the RFC that created the special-purpose
address block requires all compliant IP implementations to behave
in a special way when processing packets either to or from
addresses contained by the address block.
I'm sure you could use those addresses in a closed, controlled laboratory network - but not in anything you plan to deploy commercially or publicly. It would be better to use IPv6, IMHO.
- Jonathan Morton
More information about the Cerowrt-devel