Re: [Cerowrt-devel] Wicked OT: 240.0.0.0/4 netblock

2018-11-14 Thread Stephen Hemminger
It might be useable as yet another private network reserved range. But like others said only with a known good set of devices. On Mon, Oct 22, 2018, 2:05 AM Mikael Abrahamsson On Sun, 21 Oct 2018, David Lang wrote: > > > leaking to the outside in e-mail headers or other payload is no > different

Re: [Cerowrt-devel] Wicked OT: 240.0.0.0/4 netblock

2018-10-22 Thread Mikael Abrahamsson
On Sun, 21 Oct 2018, David Lang wrote: leaking to the outside in e-mail headers or other payload is no different from the current RFC local addresses Well, it is. For instance spam detection software might think that class-E in mail header means obligatory SPAM. I don't know, I'm just

Re: [Cerowrt-devel] Wicked OT: 240.0.0.0/4 netblock

2018-10-21 Thread Mikael Abrahamsson
On Fri, 19 Oct 2018, David Lang wrote: On Fri, 19 Oct 2018, Mikael Abrahamsson wrote: Most host stacks do not handle 240/4 correctly. Getting this working outside of a very closed and controlled network is not feasible. You would need to validate all devices to support this 240/4 block that

Re: [Cerowrt-devel] Wicked OT: 240.0.0.0/4 netblock

2018-10-19 Thread Dave Taht
On Fri, Oct 19, 2018 at 12:09 PM wrote: > > On Fri, 19 Oct 2018 11:53:21 -0700, Dave Taht said: > > An attempt to make "E" useful died a decade ago: > > https://tools.ietf.org/html/draft-fuller-240space-02 > > > > Still, it would be a better world with 268m more routable ips in it, > > wouldn't

Re: [Cerowrt-devel] Wicked OT: 240.0.0.0/4 netblock

2018-10-19 Thread valdis . kletnieks
On Fri, 19 Oct 2018 11:53:21 -0700, Dave Taht said: > An attempt to make "E" useful died a decade ago: > https://tools.ietf.org/html/draft-fuller-240space-02 > > Still, it would be a better world with 268m more routable ips in it, > wouldn't it? Not really. That ship sailed long ago - class E

Re: [Cerowrt-devel] Wicked OT: 240.0.0.0/4 netblock

2018-10-19 Thread Mikael Abrahamsson
On Fri, 19 Oct 2018, Rich Brown wrote: MY QUESTION: I have always believed that this netblock is not routable. Is this true? (A simple yes/no answer would be sufficient.) Most host stacks do not handle 240/4 correctly. Getting this working outside of a very closed and controlled network is

Re: [Cerowrt-devel] Wicked OT: 240.0.0.0/4 netblock

2018-10-19 Thread Jonathan Morton
> On 19 Oct, 2018, at 9:36 pm, Rich Brown 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

Re: [Cerowrt-devel] Wicked OT: 240.0.0.0/4 netblock

2018-10-19 Thread Dave Taht
On Fri, Oct 19, 2018 at 11:36 AM Rich Brown wrote: > > Sorry for distracting you from important things, but I have a question for > people more knowledgeable about routing than I am... > > There's a person on the OpenWrt forum who is asking about using the > 240.0.0.0/4 netblock for some

[Cerowrt-devel] Wicked OT: 240.0.0.0/4 netblock

2018-10-19 Thread Rich Brown
Sorry for distracting you from important things, but I have a question for people more knowledgeable about routing than I am... There's a person on the OpenWrt forum who is asking about using the 240.0.0.0/4 netblock for some (undefined) purpose. (If you're terminally curious, or need another