Router Virtual Appliances that support ASN Fields in Netflow/sFlow/IPFIX etc.

Hi Guys,

As per subject, I'm trying to find a Virtual Router appliance / addon etc. that utilises BGP AS (Origin-AS|Peer-AS), fields in the various flavours of Flow. From the research and lab time I've spent thus far:

1. Mikrotik state they don't send ASNs in either Netflow or IPFIX (But I still confirmed via Wireshark)
2. No luck with VyOS; both sFlow and Netflow (Also confirmed via Wireshark).

Just wondering if anyone has had a similar requirement and what was used to get it all over the line?

Many thanks in advance!