[address-policy-wg] IPv4 reserved space

Yuri,

I wouldn't have a difficulty with it :) ...   I dont see a reason why it
wouldnt work ... although you would want everyone who is filtering bogons
manually from their routers and the 240.0.0.0/4 has been considered a bogon
for quite some time...  so alot of people who do rudimentary prefix
filtering on their border routers would have to update to make that range
usable ...  I have heard arguments that some Operating systems have that
range filtered out  and is non configurable...

but I doubt the IPv6 adoption advocates ...  or the IPv4  Sellers would
like that idea too much as it would cause the price per ipv4 to
collapse...


I reckon this question has been asked before and I'm sure someone will
point us to that discussion before...

Hope this helps,



On Sat, Jun 11, 2016 at 7:45 PM, NTX NOC <noc at ntx.ru> wrote:

> Dear all,
>
> As we see ISPs and community would like to have more IPv4 space in use.
>
> I would like to ask a question what do people think about other side of
> IPv4 numeration space. Because we have in IPv4 a lot of addresses not in
> use at all but that space could be easy used.
>
> 240.0.0.0/4     Reserved (former Class E network)       RFC 1700
>
> it's 16 */8 networks. More then 256 Millions of routable and never used
> IPv4. 185/8 network has about 6.4M free and total RIPE has about 15M
> free IPv4 and we all say 185/8  will be enough for 2-3 years and rest -
> for some more time. But 256 M Ipv4 space could be enough for years!
>
> Space reserved for future Use. But will the future come to us or not?
>
> https://en.wikipedia.org/wiki/IPv4
> https://tools.ietf.org/html/rfc1700
>
> Is far as I see routers could easy start to use that IP space. People
> spend a lot of time and money to get some IPs but not to ask IANA to
> allow use this space. Technically it's very easy to start use IPs from
> such ranges.
>
> What does community thinks about it?
>
> Yuri
>
>


-- 
Kindest regards,
Tom Smyth

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