[c-nsp] AS Download ipv6 Was: AS missing in Netflow data, ASR 9001

Tim Kleefass tim at haitabu.net
Wed Dec 17 02:55:45 EST 2014

On 17.12.2014 1:26 AM, Nick Hilliard wrote:
> On 16/12/2014 19:21, Tim Kleefass wrote:
>> Which line-cards do you have ?
> asr9001, i.e. typhoon.

Arg, totally forgot: there is bug CSCuf86015 for 4.3.1 - no known Fixed
releases?  (Don't now if this applies for asr9001)
If nobody knows a release were this is solved I'll reopen the old TAC case.

-> For IPv6 flows AS numbers are 0 for prefixes learned via directly
connected ebgpv6 neighbors.
(The bug report is a bit more specific, so that we could thought that it
does not apply for us, but it did.)

One workaround is to set the nexthop to the neighbor's global IPv6
address, e.g.

route-policy peer-in
  set next-hop peer-address

Obviously, don't do that for route-servers at IXPs...

This works for us with Typhoon line-cards, ASR 90(06|10), RSP-4G and
4.3.1 running.


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