[db-wg] Bogon route object cleanup

Hi,

On 3.9.2021 3.58, Ronald F. Guilmette via db-wg wrote:
> It seems that we never really settled the question of route objects that make
> reference to the following reserved IP blocks.

These blocks have been reserved by IANA through IETF action, and thus 
they are completely outside the RIR framework. IANA maintains a registry 
of such address blocks at:

https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml

Personally I feel that IANA should come to an agreement with one of the 
RIRs that the globally routeable blocks in that list could be adopted by 
that RIR, and then we could even have RPKI for them.

> 192.31.196.0/24
> 192.88.99.0/24
> 
> 2001::/32

2001:4:112::/48 is also one of these blocks.

> 2002::/16

The following block, on the other hand, I think is an authentic bogon:

> 2011:4188::/48

> I am in favor of including route objects that reference any of these
> reserved blocks in the ongoing cleanup.  My recollection is that Cynthia
> Revstr�m also expressed support for including any and all such route
> objects in the current ongoing route object cleanup.

> Are there any objections at the present time to including such route objects
> in the ongoing cleanup?

AS112 is an existing thing, and its routes shouldn't be removed from the 
Internet. See www.as112.net for brief description.

As for the others...

People keep repeating that 6to4 and Teredo are deprecated technologies, 
but they've obviously not read the deprecation RFCs themselves. The RFCs 
clearly state that while new implementations and installations of these 
tunneling methods are strongly discouraged, existing installations 
should be allowed to function for the near future for backward 
compatibility. So on these grounds I oppose removing those route objects 
too.

When it's clear that nobody is bothering to run the relay router 
services for these technologies anymore, the route objects can be removed.

Yes, I run one instance of these services at AS29432, and would be 
affected by this change.

Best Regards,

-- 
	Aleksi Suhonen

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