Filters

[Bartek Gajda]

Some networks in Poland which are /32 are divided into a few /33 or /35
and announced under different AS numbers. (there are only a few sTLa so
far like this, but a few more will follow, for example 2001:b10::/33)
This is because we have to implement different routing policy (under
different AS numbers) and RIPE policy don't allow us to get additional /32

So, for us, it would be better to not be filtered (between /32-/35)
:-)

Regards,
Bart


Bernhard Schmidt wrote:

>Kevin Loch wrote:
>
>Hi,
>
>  
>
>>>The rest of 2000::/3 is opened up to the current in-the-wild maximum
>>>allocation prefix len of /35. In published filters you could often see
>>>something like
>>>
>>>permit 2001::/32 ge 17 le 35
>>>permit 2003::/32 ge 17 le 35
>>>      
>>>
>>I believe that all /35's are/were within 2001::/21.
>>    
>>
>
>True, that was just a quick example. In fact, according to
>http://www.sixxs.net/tools/grh/tla/all/ there are only a few /35 left
>(currently announced)
>
>Not updated allocation:
>2001:228::/35 	[jp] Japan 	JENS-JP-19991027
>2001:338::/35 	[jp] Japan 	U-NETSURF-JPNIC-JP-20011005
>2001:4c0::/35 	[mx] Mexico 	PROTEL-RED-1-V6
>2001:4c8::/35 	[mx] Mexico 	UNINET-NETV6-1
>2001:6c0::/35 	[se] Sweden 	SE-TELIANET-20010102
>
>Updated but only announcing the /35:
>2001:358::/32 	[jp] Japan 	MIND-JPNIC-JP-20011115
>2001:390::/32 	[kr] Korea 	HANINTERNET-KRNIC-KR-20020207
>2001:438::/32 	[us] United States 	ABOVENET-IPV6
>2001:4d8::/32 	[us] United States 	DOTNET-001
>
>You will not see those if you filter /35. I don't know whether you would
>miss them.
>
>Updated and announcing both /32 and /35:
>2001:258::/32 	[jp] Japan 	INFOWEB-JPNIC-JP-2000502
>2001:2c0::/32 	[jp] Japan 	INFOSPHERE-JPNIC-JP-20010208
>2001:340::/32 	[jp] Japan 	FINE-JPNIC-JP-20011030
>2001:3d0::/32 	[jp] Japan 	PTOP-JPNIC-JP-20020521
>2001:400::/32 	[us] United States 	ESNET-V6
>2001:420::/32 	[us] United States 	CISCO-IPV6-1
>2001:450::/32 	[us] United States 	GBLX-V6
>2001:490::/32 	[us] United States 	NOKIA-1
>2001:4b0::/32 	[us] United States 	AOLTIMEWARNER
>
>those a probably afraid of the famous BGP ghosting or just haven't got
>around to kill the announcements.
>
>Disclaimer: I did not check whether the reports in GRH are correct, but
>it looks like that.
>
>Bernhard
>  
>