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Cisco ISR 2921/3451 Netflow issues

Hello

We currently use Solarwinds for up/down alerts and are now trialing NPM and NTA.

I have the ISRs loaded into Solarwinds already via the WAN block address we have 206.112.x.x, polling standard ICMP.  I am trying to setup flows for this ISR but they are not coming through it looks according to the NTA.

Below is the config I have currently applied.  Can anyone see if I am missing something I have looked at this numerous times and nothing is sticking out.  Thanks in advance.

flow record NetFlow

match ipv4 protocol

match ipv4 source address

match ipv4 destination address

match transport source-port

match transport destination-port

match interface input

match interface output

collect routing source as

collect routing destination as

collect routing next-hop address ipv4

collect transport tcp flags

collect counter bytes

collect counter packets

collect timestamp sys-uptime first

collect timestamp sys-uptime last

!

!

flow exporter NetFlowExport

destination y.y.y.y

source GigabitEthernet0/0/0

transport udp 2055

template data timeout 60

!

!

flow monitor NetflowMonitor

exporter NetFlowExport

cache timeout inactive 10

cache timeout active 5

statistics packet protocol

record NetFlowUSA

!

interface GigabitEthernet0/0/0

description ** WAN Block **

ip flow monitor NetflowMonitor input

ip flow monitor NetflowMonitor output

ip address 206.112.x.x 255.255.255.0