Fluke Computer Accessories manual Enabling NetFlow on an Enterasys Device

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User’s Guide – version 3.5

NetFlow Tracker

To ensure that NetFlow Tracker receives enough information from the device you must ensure that the “Look Community String” configured in the “SNMP” page is one of those set up in SNMP Settings, and you must set “Packeteer-0 Packets” to “on” in the “system variables” page.

If you have a recent version of PacketWise, you may have extra settings on the “system variables” page that should be changed. If available, “Intermediate FDR” should be set to “on”, “Intermediate FDR Timeout “ to 30000 milliseconds, and “Reset Packeteer 1/2 counters” to “on”. If these settings are not available then the PacketShaper will describe all of the traffic for a long-lived flow in one record, and NetFlow Tracker will account for it all in the minute during which the flow ended. This will lead to large spikes in charts for the device.

Enabling NetFlow on an Enterasys Device

NetFlow Tracker supports Enterasys devices capable of exporting NetFlow version 9 exports. To enable NetFlow, enter the following commands while logged in to the router with read/write access:

set netflow cache enable

This enables NetFlow.

set netflow export-destination <address> 2055

Use the address of your NetFlow Tracker machine and one of the ports configured in the Listener Ports settings page. Port 2055 is monitored by default.

set netflow export-interval 1

This breaks up long-lived flows into one-minute segments.

set netflow port <port-string> enable

You need to enable NetFlow on each interface through which traffic you are interested in will flow. This will normally be the Ethernet and WAN interfaces.

set netflow export-version 9

This sets the export version. Version 9 is required for NetFlow Tracker to be able to associate NetFlow information with the interfaces it relates to.

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Contents NetFlow Tracker Contents LONG-TERM Reports Appendix 2 CSV File Format Software License Agreement Grant of Licence and Payment of FeesCopyright Customer Remedies Confidential Information and Security User’s Guide version NetFlow Tracker Definitions Support Services Support ChargesUndertakings by You Supplier’s UndertakingsLimitation of Liability and indemnity Intellectual Property RightsTermination Confidential Information and Security MiscellaneousExceptions to Support Services Support HoursResponse Times What is NetFlow? What is NetFlow Tracker?Features and Benefits IntroductionUser’s Guide version NetFlow Tracker Installation Pre-installation ChecksMinimum System Requirements Operating System SupportInstallation on Microsoft Windows Installation on Linux Post-installation Tasks Set up Snmp community strings Set up web front-end securityConfigure your routers and switches Add listener portsUsing NetFlow Tracker Device traffic meters InterfacesWorking with Charts Changing the displayed chartChart legend Per-AS dataView a standard chart as a pie chart View a standard chart as a tabular reportZooming Zooming outAlter the filter applied to a standard chart Export a chart to another applicationPrint the chart Open the chart in a new windowWorking with Pie Charts Working with Tabular ReportsSort a tabular report Examine a single rowReport Templates Address ReportsSession Reports QoS Reports Network ReportsCreating Filtered Reports Interface ReportsTraffic Identification Reports Other ReportsReport template Sample sizeSource data Start timeTime zone Source deviceInterface Out interfaceProtocol Source portDest port Src/dest portDiffServ Traffic classSource AS Dest ASLong-term Reports Devices and InterfacesPer-device and Per-interface Long-term Reports Filter EditorUser’s Guide version NetFlow Tracker Reports Report URL Format General FormReport Format Parameters 0023 00240025 0026Chart PieNumber TrueFeatures Sections128 256Time Range Parameters Millis HourDay WeekTime range will extend for this number of units Calendar-based advancedHHmm Applying a time-of-day mask to the time rangeDay1-day2/time1-time2 110 105100 113115 120140 125285 300Minute DailyFilter Parameters Name Addr1-addr2Port1-port2 Port/name Port/numberPort1-port2/name Port1-port2/numberPrec TosPrec%20tos CodeAddr/mask MaskPassword Security ParametersUsername Management Portal Access Control Parameters SecretNull VPN Out VPN Chart scrollbar Chart selection headersFilter Editor button, if applicable Refresh and Resolve All buttons, if applicablePerformance Tuning Database Server SettingsDisk Speed Query SizeConfiguration Guide Snmp SettingsLicensing Listener PortsDevice Settings Device SettingsDevice List Sampled Data Scaling Security Settings VPNsManagement Portal Settings Http//proxy/tracker1/report1Http//tracker1/report.jsp?portalsecret=secret&aclif= Http//proxy/tracker1/report.jsp?portalacl=Using Apache as a Portal Server RewriteEngine OnRewriteRule /tracker1/.*$ http//1.2.3.4/$1 P,L,QSA ProxyPassReverse /tracker1/ http//1.2.3.4Report Settings General SettingsReal-time Reports Saved Filters Scheduled ReportsLong-term Reports Executive Reports Span class=repdesctextTest/span Nelements=5 and chartWidth=400 ContentSub-reports User’s Guide version NetFlow Tracker Hostname Resolution Settings IP Application NamesDiffServ Names Database Settings AS NamesSubnet Names Backup Memory Settings ArchivingPerformance Counters NetFlow Data Received Traffic DescribedIgnored Flows Unprocessed FlowsetsAbout No In InterfaceAppendix 1 Device Configuration Enabling Netflow Export on an IOS DeviceIp cef Ip flow-export destination addressIp flow-cache timeout active Ip flow-cache timeout inactiveShow ip flow export Show ip cache flow Show ip cache verbose flowIp route-cache flow infer-fields Mls netflowMls nde sender version Mls aging longUser’s Guide version NetFlow Tracker Set mls bridged-flow-statistics enable vlanlist Set mls nde enableSet system name name Set mls nde addressFlow-sampler-map allflows mode random one-out-of 1 exit Enabling Flow Detail Records on a Packeteer DeviceEnabling NetFlow on an Enterasys Device Chart CSV format Pie chart CSV formatAppendix 2 CSV File Format Tabular report CSV formatChart XML format Pie chart XML formatAppendix 3 XML Format Tabular report XML formatAppendix 4 Third Party Software Components JspSmartUpload Quartz