Filters

[Iljitsch van Beijnum]

On 24-mei-2005, at 10:52, Bartek Gajda wrote:

>> 2001:490::/32 origin by 14277
>> 2001:490::/35 origin by 1248
>> 2001:490:C000::/35 origin by 18666

>> What are the opinions for such a split ?

> As I wrote previously, we would be glad not to split our  /32 but
> according to RIPE policy I am unable to get second /32 (for the same,
> one LIR). So the only way is to split it.

Why is this necessary???

The RIRs say you can filter at /32. (Well, except for micro  
allocations.)

But I don't keep all RIR allocations and assignments in a database,  
so let's have a look:

mysql> select count(*) as delegations, num as prefixlength from  
addrspace where type="ipv6" group by num order by num;
+-------------+--------------+
| delegations | prefixlength |
+-------------+--------------+
|           1 |           19 |
|           2 |           20 |
|           2 |           21 |
|           1 |           22 |
|           1 |           23 |
|           1 |           24 |
|           2 |           27 |
|           1 |           28 |
|           1 |           29 |
|           2 |           30 |
|           3 |           31 |
|         702 |           32 |
|         112 |           33 |
|         112 |           34 |
|         231 |           35 |
|          54 |           48 |
|           5 |           64 |
+-------------+--------------+
17 rows in set (0.31 sec)

This is actually pretty shocking!