Protocol Total Flows Packets Bytes Packets Active(Sec) Idle(Sec) The show ip cache flow command shows information about the flows themselves, including the distribution of the packet sizes, number of flows seen, lost flow packets, and other statistics. cisco2514# show ip flow exportĮxporting using source interface Ethernet0ġ8911421 flows exported in 676473 udp datagramsĠ flows failed due to lack of export packetģ57386 export packets were sent up to process levelĠ export packets were dropped due to no fibĠ export packets were dropped due to adjacency issuesĠ export packets were dropped due to fragmentation failuresĠ export packets were dropped due to encapsulation fixup failures The show ip flow export command shows that NetFlow version 5 records are being sent from the source address of Ethernet0 to on port 2055. You can use the following commands to check the NetFlow configuration.
End with CNTL/Z.Ĭisco2514(config)# ip flow-export destination IP/host port <= e.g., 192.168.1.5 2055 or nf. 2055Ĭisco2514(config)# ip flow-export source interface <= e.g., Ethernet0 will be the "source"Ĭisco2514(config)# ip flow-export version # <= e.g., 1, 5, 7, or 9Ĭisco2514(config)# ip flow-cache timeout active 1 <= Active flows time out in 1 minuteĬisco2514(config)# ip flow-cache timeout inactive 15 <= Inactive flows time out in 15 secondsĬisco2514(config-if)# ip route-cache flowĬisco2514(config)# ^Z <= Type Control-Z here The example shows Ethernet0 and Ethernet1 (eth0 & eth1).Įnter configuration commands, one per line.
Version 7 is only for older Catalyst switches version 1 is considered obsolete. NetFlow version: generally version 5 or 9.Flow records will appear to come from this source address Intermapper Flows will show this as the address of the exporter. NetFlow source: is the IP address of the exporter itself, specified by the interface to be used.NetFlow destination: the IP address/host name and the port of Intermapper Flows that will receive the flow records.Quick Guide to Configuring NetFlowĪs a quick guide, the following commands will generally configure a Cisco router or switch to send NetFlow "flow records" to Intermapper Flows. The Cisco Netflow Configuration Guide gives a detailed description of configuring Cisco gear.
Intermapper Flows acts as a NetFlow collector to receive the exported flow information and display it in an attractive user interface.Ĭisco has written a white paper that has a list of Cisco equipment that supports NetFlow.
NetFlow provides detailed information about the sources and destinations of traffic flows on their network.
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