Published On: August 5ᵗʰ, 2019 19:11

Flexible Netflow Configuration Guide, Cisco IOS Release 15SY

Flexible Netflow Export to an IPv6 Address

The Export to an IPv6 Address feature enables Flexible NetFlow to export data to a destination using an IPv6 address.

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Information About Flexible Netflow Export to an IPv6 Address

Flexible Netflow Export to an IPv6 Address Overview

This feature enables Flexible NetFlow to export data to a destination using an IPv6 address.

How to Configure Flexible Netflow Export to an IPv6 Address

Configuring the Flow Exporter

Perform this required task to configure the flow exporter.


Note

Each flow exporter supports only one destination.

You can export to a destination using either an IPv4 or IPv6 address.
SUMMARY STEPS

1. enable

2. configure terminal

3. flow exporter exporter-name

4. description description

5. destination {ip-address | hostname} [vrf vrf-name]

6. dscp dscp

7. source interface-type interface-number

8. output-features

9. template data timeout seconds

10. transport udp udp-port

11. ttl seconds

12. end

13. show flow exporter exporter-name

14. show running-config flow exporter exporter-name


DETAILED STEPS
  Command or Action Purpose
Step 1 enable


Example: 
Device> enable
 

Enables privileged EXEC mode.

  • Enter your password if prompted.

 
Step 2 configure terminal


Example: 
Device# configure terminal
 

Enters global configuration mode.

 
Step 3 flow exporter exporter-name


Example: 
Device(config)# flow exporter EXPORTER-1
 

Creates the flow exporter and enters Flexible NetFlow flow exporter configuration mode.

  • This command also allows you to modify an existing flow exporter.

 
Step 4 description description


Example: 
Device(config-flow-exporter)# description Exports to the datacenter
 

(Optional) Configures a description to the exporter that will appear in the configuration and the display of the show flow exporter command.

 
Step 5 destination {ip-address | hostname} [vrf vrf-name]


Example: 
Device(config-flow-exporter)# destination 172.16.10.2
 

Specifies the IP address or hostname of the destination system for the exporter.

Note   

You can export to a destination using either an IPv4 or IPv6 address.
 
Step 6 dscp dscp


Example: 
Device(config-flow-exporter)# dscp 63
 

(Optional) Configures differentiated services code point (DSCP) parameters for datagrams sent by the exporter.

  • The range for the dscp argument is from 0 to 63. Default: 0.

 
Step 7 source interface-type interface-number


Example: 
Device(config-flow-exporter)# source ethernet 0/0
 

(Optional) Specifies the local interface from which the exporter will use the IP address as the source IP address for exported datagrams.

 
Step 8 output-features


Example: 
Device(config-flow-exporter)# output-features
 

(Optional) Enables sending export packets using quality of service (QoS) and encryption.

 
Step 9 template data timeout seconds


Example: 
Device(config-flow-exporter)# template data timeout 120
 

(Optional) Configures resending of templates based on a timeout.

  • The range for the seconds argument is 1 to 86400 (86400 seconds = 24 hours).

 
Step 10 transport udp udp-port


Example: 
Device(config-flow-exporter)# transport udp 650
 

Specifies the UDP port on which the destination system is listening for exported datagrams.

  • The range for the udp-port argument is from 1 to 65536.

 
Step 11 ttl seconds


Example: 
Device(config-flow-exporter)# ttl 15
 

(Optional) Configures the time-to-live (TTL) value for datagrams sent by the exporter.

  • The range for the seconds argument is from 1 to 255.

 
Step 12 end


Example: 
Device(config-flow-exporter)# end
 

Exits flow exporter configuration mode and returns to privileged EXEC mode.

 
Step 13 show flow exporter exporter-name


Example: 
Device# show flow exporter FLOW_EXPORTER-1
 

(Optional) Displays the current status of the specified flow exporter.

 
Step 14 show running-config flow exporter exporter-name


Example: 
Device# show running-config flow exporter FLOW_EXPORTER-1
 

(Optional) Displays the configuration of the specified flow exporter.

 

Configuration Examples for Flexible Netflow Export to an IPv6 Address

Example: Configuring Multiple Export Destinations

The following example shows how to configure multiple export destinations for Flexible NetFlow for IPv4 or IPv6 traffic. This sample starts in global configuration mode:

The following example shows how to configure multiple export destinations for Flexible NetFlow for IPv4:

!
flow exporter EXPORTER-1
 destination 172.16.10.2
 transport udp 90
 exit
!
flow exporter EXPORTER-2
 destination 172.16.10.3
 transport udp 90
 exit
!
flow record v4_r1
match ipv4 tos
match ipv4 protocol
match ipv4 source address
match ipv4 destination address
match transport source-port
match transport destination-port
collect counter bytes long
collect counter packets long


flow monitor FLOW-MONITOR-1
 record v4_r1
 exporter EXPORTER-2
 exporter EXPORTER-1
!

ip cef
!
interface GigabitEthernet1/0/0
 ip address 172.16.6.2 255.255.255.0
 ip flow monitor FLOW-MONITOR-1 input
 
!

The following example shows how to configure multiple export destinations for Flexible NetFlow for IPv6:

!
flow exporter EXPORTER-1
 destination 172.16.10.2
 transport udp 90
 exit
!
flow exporter EXPORTER-2
 destination 172.16.10.3
 transport udp 90
 exit
!

flow record v6_r1
match ipv6 traffic-class
match ipv6 protocol
match ipv6 source address
match ipv6 destination address
match transport source-port
match transport destination-port
collect counter bytes long
collect counter packets long
!


!
flow monitor FLOW-MONITOR-2
 record v6_r1
 exporter EXPORTER-2
 exporter EXPORTER-1
!
ip cef
!
interface GigabitEthernet1/0/0
 ipv6 address 2001:DB8:2:ABCD::2/48
 ipv6 flow monitor FLOW-MONITOR-2 input
!

The following display output shows that the flow monitor is exporting data to the two exporters:

Device# show flow monitor FLOW-MONITOR-1
Flow Monitor FLOW-MONITOR-1:
  Description:       User defined
  Flow Record:       v4_r1
  Flow Exporter:     EXPORTER-1
                     EXPORTER-2
  Cache:
    Type:              normal (Platform cache)
    Status:            allocated
    Size:              4096 entries / 311316 bytes
    Inactive Timeout:  15 secs
    Active Timeout:    1800 secs
    Update Timeout:    1800 secs

Additional References

Related Documents

Related Topic

Document Title

Cisco IOS commands

Cisco IOS Master Command List, All Releases

Flexible NetFlow conceptual information and configuration tasks

Flexible NetFlow Configuration Guide

Flexible NetFlow commands

Cisco IOS Flexible NetFlow Command Reference

Standards/RFCs

Standard

Title

No new or modified standards/RFCs are supported by this feature.

—

MIBs

MIB

MIBs Link

None

To locate and download MIBs for selected platforms, Cisco software releases, and feature sets, use Cisco MIB Locator found at the following URL:

http:/​/​www.cisco.com/​go/​mibs

Technical Assistance

Description

Link

The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password.

http:/​/​www.cisco.com/​cisco/​web/​support/​index.html