On 09/07/2012 08:17, Anurag Bhatia wrote:
I was just looking around and say a major Indian provider Sify (AS9583) is announcing /64s via BGP along with main /32 which is their allocation from APNIC.
inet6num: 2001:0E48::/32 netname: SILNET
I see Tata Comm (Sify's upstream) is accepting /64s while Tinet (one of other upstream) is dropping and taking only /32. Other major backbones like HE, Level3 dropping but Telia still accepting. Pretty much mixed result.
Is it simply a misconfiguration or there is some use of announcing /64s along with main /32?
I would hope its accidental. Most people I've spoken to won't even consider accepting longer prefixes than /48 and will typically also refuse to accept any prefixes where there are aggregate announces covering them. We're going to end up with a very nasty routing table if people start pumping all their /64s into it. -- Graham Beneke