IOS-XE Flows, no DST IP

[kmorin18]

Hey!
We have some IOS-XE routers and configured as per the docs.
We are getting the right amount of Mb/s but there is no DST IP data being processed in Akvorado.
We only have the flows setup on the WAN / transit side.

Are we missing something? Add netflow data from customer side interfaces?

Thanks!

[kmorin18]

It seems like this would require BMP configuration
However BMP on IOS XE requires a neighbor address, as if they are expecting the BGP session to establish with Akvorado

[vincentbernat]

I don't think BMP would help. It seems more a configuration issue. Did you compare your configuration with the one in the documentation?

[kmorin18]

Thanks Vincent

It seems like certain versions of IOS XE expect "export-protocol netflow-v9" instead of "version 9" under the flow exporter

Config changed, will report back for the public record/help

[kmorin18]

Weirdly still having this issue, despite having the proper flow record config:

flow record Akvorado
 match ipv4 tos
 match ipv4 protocol
 match ipv4 source address
 match ipv4 destination address
 match transport source-port
 match transport destination-port
 collect routing source as 4-octet
 collect routing destination as 4-octet
 collect routing next-hop address ipv4
 collect transport tcp flags
 collect interface output
 collect interface input
 collect counter bytes
 collect counter packets
 collect timestamp sys-uptime first
 collect timestamp sys-uptime last

[vincentbernat]

You could capture the received flows and check with Wireshark if the information is present or not.

[kmorin18]

It appears that the information is sent, but not the Netflow template, making decoding impossible at least in wireshark
We will keep digging as to why that is