Please check your filters

[Bernhard Schmidt]

On Sun, Oct 30, 2005 at 11:55:17PM +0100, Iljitsch van Beijnum wrote:

> >without any deathwish to start another filtering pro/con thread,  
> >please check and adjust your filters for
> 
> >2003::/19        DE-DTAG
> >2400:200::/20        SoftbankBB IPv6
> 2400:2000::/20

I know, was corrected some minutes later.

> Any addresses we can trace or ping?

An educated guess showed 2400:2000::1 answering to ICMP echo requests. I
don't know any address in 2003::/19, but at least from my site their
border router answers nicely with correct rDNS and ICMP error message
when tracing random addresses in their network, e.g. 2003::1

 8  m-ec6.m.de.net.dtag.de (2001:7f8:2c:1000:0:a500:3320:1)(H!)  29.735
 ms (H!)  30.330 ms (H!)  31.584 ms

> Teleglobe gives me a bit fat !N for both...

We had Teleglobe IPv6 transit for almost a year until last month and
always got 30-50 prefixes less than on our other upstream (both strict
filtered - max /32, up to /48 only in well-known micro-allocation and
IX blocks). They were missing such unimportant prefixes like more than
50% of the European NRENs (all that are singlehomed through GEANT), both
when GEANT had GBLX transit and after they switched to L3.

Bernhard