Routing problems to www.eurovision.tv 2400:CB00::/32 CLOUDFLARE

[Chris Welti]

Hello Tom,

Then you should have applied for /48 portable address space for all your different regions.
APNIC has a separate address space for this in 2001:0C00:/23
See http://www.apnic.net/publications/research-and-insights/ip-address-trends/minimum-allocations
We strictly filter by minimum allocation polices of the RIR and don't make exceptions.
The problem with just accepting all /48 is that you end up with a lot of unnecessary /48 deaggregations in the table, even if there
would be a covering /32.

Btw within your AS you should be able to route all your prefixes yourself, otherwise it wouldn't be an autonomous system :)

Regards,
Chris

Am 6/15/12 6:08 PM, schrieb Tom Paseka:
> Hello Chris,
> 
> CloudFlare operates a discontiguous network and we are unable to announce the /32.
> 
> The /48 is a valid announcement for the global table. While we understand there are some concerns about de-aggergation, aggregation is not possible and we would either be announcing the deaggregated address space from a single assignment, or we'd have multiple assignments for the same purpose, so the impact on the routing table would be the same.
> 
> If the full table can not be accepted, I would recommend installing a default route to one or all of your upstreams, otherwise many parts of the global table will not be reachable, not just to CloudFlare. 
> 
> Thanks,
> Tom
> 
> On Fri, Jun 15, 2012 at 8:57 AM, Chris Welti <chris.welti at switch.ch <mailto:chris.welti at switch.ch>> wrote:
> 
>     This could be because there is no covering 2400:CB00::/32 route by Cloudflare in the global IPv6 routing table.
>     There is only 2400:CB00:2048::/48 and this might be filtered by ISPs due to the APNIC miniumum allocation size of /32 for 2400::/12.
>     Cloudflare must announce at least the covering /32 for it to be globally reachable.
> 
>     Regards,
> 
>     Chris
>     AS559
> 
>     Am 6/15/12 4:08 PM, schrieb Thomas Schäfer:
>     > The (web) access to
>     >
>     > www.eurovision.tv <http://www.eurovision.tv>
>     >
>     > has some problems:
>     >
>     > from LRZ/DFN                           ok
>     > from Sixxs-Tunnel                      failed
>     > via  http://ipv6-test.com/validate.php ok
>     > via  sixy.ch <http://sixy.ch> (adding failed)           failed
>     >
>     >
>     > traceroute from sixxs
>     >
>     >
>     >
>     > traceroute www.eurovision.tv <http://www.eurovision.tv>
>     > traceroute to www.eurovision.tv <http://www.eurovision.tv> (2400:cb00:2048:1::6ca2:c904), 30 hops max, 40 byte packets using UDP
>     >  1  fritz.box (2001:6f8:120c:0:21c:4aff:fe28:8a31)  0.664 ms   0.489 ms   0.504 ms
>     >  2  gw-892.ham-01.de.sixxs.net <http://gw-892.ham-01.de.sixxs.net> (2001:6f8:900:37b::1)  39.374 ms 38.900 ms   38.261 ms
>     >  3  2001:6f8:862:1::c2e9:c729 (2001:6f8:862:1::c2e9:c729)  38.653 ms 37.531 ms   36.400 ms
>     >  4  vl2280.cr10.noham.de.easynet.net <http://vl2280.cr10.noham.de.easynet.net> (2001:6f8:862:1::c2e9:c72c) 44.705 ms   43.567 ms   42.446 ms
>     >  5  2001:6f8:1:0:87:86:69:214 (2001:6f8:1:0:87:86:69:214) 41.202 <tel:214%29%20%2041.202> ms * *
>     >  6  2001:6f8:1:0:87:86:77:83 (2001:6f8:1:0:87:86:77:83)  37.765 ms * *
>     >  7  2001:6f8:1:0:87:86:77:62 (2001:6f8:1:0:87:86:77:62)  51.138 ms * *
>     >  8  2001:6f8:1:0:87:86:77:71 (2001:6f8:1:0:87:86:77:71)  44.403 ms * *
>     >  9  2001:6f8:1:0:87:86:77:15 (2001:6f8:1:0:87:86:77:15)  53.309 ms * *
>     > 10  2001:6f8:1:0:87:86:77:47 (2001:6f8:1:0:87:86:77:47)  58.516 ms * *
>     > 11  2001:7f8:1::a501:3335:1 (2001:7f8:1::a501:3335:1)(H!)  2100.484 ms * *
>     >
>     >
>     > LANG=C wget -6 www.eurovision.tv <http://www.eurovision.tv>
>     > asking libproxy about url 'http://www.eurovision.tv/'
>     > libproxy suggest to use 'direct://'
>     > --2012-06-15 16:07:55--  http://www.eurovision.tv/
>     > Resolving www.eurovision.tv... 2400:cb00:2048:1::6ca2:cb04, 2400:cb00:2048:1::6ca2:cc04, 2400:cb00:2048:1::6ca2:cd04, ...
>     > Connecting to www.eurovision.tv <http://www.eurovision.tv>|2400:cb00:2048:1::6ca2:cb04|:80... failed: No route to host.
>     > Connecting to www.eurovision.tv <http://www.eurovision.tv>|2400:cb00:2048:1::6ca2:cc04|:80... failed: No route to host.
>     > Connecting to www.eurovision.tv <http://www.eurovision.tv>|2400:cb00:2048:1::6ca2:cd04|:80... failed: No route to host.
>     > Connecting to www.eurovision.tv <http://www.eurovision.tv>|2400:cb00:2048:1::6ca2:ca04|:80... failed: No route to host.
>     > Connecting to www.eurovision.tv <http://www.eurovision.tv>|2400:cb00:2048:1::6ca2:c904|:80... failed: No route to host.
>     >
>     >
>     >
>     >
>     >
>     >
>     > Regards,
>     >
>     > Thomas Schäfer
>     >
>     >
>     >
> 
>