Netflow in FlexVPN issue

[xuetao han]

Hi All,

After implementing a FlexVPN, i have an issue with Netflow.

All  my ISR G2 routers are sending flows from not only configured interface, but also all DVTI as shown on attached photo.

Is there a way to stop routers sending netflow from DVTI ?

Thanks in advance

[Philip D'Ath]

Can you supply a config snippit show of the VTI interface?

[xuetao han]

Here is the VTI template:

interface Virtual-Template1 type tunnel
description FlexMesh Template
ip unnumbered Loopback0
ip mtu 1400
ip nhrp network-id 1
ip nhrp shortcut virtual-template 1
tunnel protection ipsec profile default
end

!

flow export is only configured on Lan interface as following:

interface GigabitEthernet0/0.1
description Data Network
encapsulation dot1Q 1 native
ip address xxxx
ip nbar protocol-discovery
ip flow monitor predefined-ipv4 input
ip flow monitor predefined-ipv4 output
ip pim sparse-mode
end

!

[Philip D'Ath]

Smells like a software bug to me.  I'd try testing a new IOS version if it is an issue.