Routing problems to www.eurovision.tv 2400:CB00::/32 CLOUDFLARE
Chris Welti
chris.welti at switch.ch
Fri Jun 15 18:28:39 CEST 2012
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
> >
> >
> >
>
>
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