Version 35

    In this article you will learn how to verify and capture the Traffic is been received for the NTA ( NetFlow / Traps & Syslog )



    Firstly you will have to make sure you have configured your device correctly to send  required Traffic on Orion server IP & Port .

    If you are new and have no idea about WHAT IS NETFLOW   i would recommend to watch these videos carefully and understand the requirements and configuration required on the Device .

    Please see the Video below

    How to troubleshoot NetFlow using Wireshark - Video - SolarWinds Worldwide, LLC. Help and Support

    Cisco Netflow Advanced - YouTube

    MicroNugget: Netflow - YouTube

    How to configure Netflow on devices ?

    How to Configure NetFlow on a Cisco Router - YouTube

    Cisco ASA NetFlow Configuration Using ASDM - YouTube

    Configuring NetFlow on Cisco 3700 Router and Cisco ASA - YouTube

    SolarWinds Knowledge Base :: Configuring Cisco ASA devices for use with Orion NTA

    Floapalooza: NetFlow, J-Flow, & sFlow Configure, Analyze, and Act on that Data - SolarWinds® Lab #4 - YouTube


    Overview of Network Traffic Flow Technologies - YouTube

    Visibility in the Data Center


    If you are new and have no idea about WHAT IS SYSLOG  i would recommend to watch these videos

    Cisco - Syslog (kiwi) - YouTube

    CCNA 200-120 - Syslog Basics - 81 of 84 - YouTube

    Syslog - YouTube



    If you still not able to see the traffic within Orion application please follow the steps below in order to filter and verify the traffic is actually been received at Orion port.

    For this you will have to install the Wireshark as below.

    Download Wireshark and install on Orion Server / Kiwi Syslog Server .

    Wireshark · Download


    Make Sure Windows / McAfee / Norton / Any other A/V Firewall Disabled on Orion Server / OR Create a Rule in Windows Firewall to allow port traffic in some cases i have found the Windows Firewall blocking the traffic to the service  even the traffic can bee seen in the  Wireshark

    Click > Capture >Interfaces > Select "Required " Correct interface >


    wireshark NTA 1.jpg


    Now apply required filter.

    Change the IP  in filter of Node which is sending Netflow to Orion (Cisco / Juniper / Switch / Router ) and apply.

    ip.src == && udp.port == 2055


    udp.port == 2055

    click apply .

    Are you able to see Flows from the Node like (Cflow (for Cisco )/ Jflow for Juniper  / Sflow )  ?

    if no packet please check your device or network for further troubleshooting as this will confirm that

    Orion is not receiving any packet hitting NTA default port 2055 .





    ******************** Use following for Traps / Syslog filter in Wireshark as above example *************


    For Traps

    ip.src == && udp.port ==162



    udp.port == 162




    For Syslog

    ip.src == && udp.port == 514



    udp.port == 514




    For more details please find 

    SolarWinds Technical Reference Troubleshooting NetFlow


    After receiving NetFlow packets if you still not able to see the results

    Please Note:

    Solarwinds nta requires bytes group information.

    Make sure NTA packets are not missing data (octet)

    For more details see below KB post.

    Required Flow template fields in NTA

    Please contact device vendor you might need to change the netflow record and add the following.


    collect counter bytes long
    collect counter packets long