ESR Series Routers Operation Manual                                                          89 
7.27  Netflow configuration 
Netflow is a network  protocol designed for traffic accounting and analysis.  Netflow allows to 
transfer traffic information (source and destination address, port, quantity of information) from the 
network equipment (sensor) to the collector. Common server may serve as a collector. 
Objective: Establish accounting  for  traffic from gi1/0/1 interface to be  sent  to the  server via 
gi1/0/8 interface for processing purposes.  
 
Fig. 7.29—Network structure 
Solution: 
First, do the following: 
  For gi1/0/1, gi1/0/8 interfaces disable firewall with 'ip firewall disable' command. 
  Assign IP address to ports. 
Main configuration step: 
Specify collector IP address: 
esr(config)# netflow collector 10.10.0.2 
Enable netflow statistics export collection for gi1/0/1 network interface: 
esr(config)# interface gigabitethernet 1/0/1 
esr(config-if-gi)# ip netflow export 
Enable netflow on the router: 
еsr(config)# netflow enable 
Configuration changes will take effect when the configuration is applied:  
esr# commit 
Configuration has been successfully committed 
esr# confirm 
Configuration has been successfully confirmed 
To view the Netflow statistics, use the following command:  
esr# show netflow statistics 
Netflow  configuration  for  traffic  accounting  between  zones  is  performed  by  analogy  to  sFlow 
configuration; for description, see Section 7.28 sFlow configuration.