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


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