Does Cisco ASA support NetFlow?

In ASDM under Configuration go in Device Management > Logging > Netflow. There you can set the Netflow collector ip address, the ASA interface it is behind and the port it supports.

How do I monitor traffic on a Cisco ASA?

How to monitor traffic usage in Cisco ASA firewall?

Identify the top talkers in the network from dashboard.
Generate reports for Cisco ASA device.
Identify malicious traffic with advanced security analytics module.
Set real-time alerts and get notified via email or SMS.

What is a capability of Cisco ASA NetFlow?

NetFlow on the ASA provides an efficient way to track connection creation, teardown and denies in an efficient manner. The implementation used on the ASA platforms is NetFlow v9 which is defined by RFC3954. The feature was introduced in ASA 8.2.

How do I set up NetFlow Analyzer?

Easy Installation

Download NetFlow Analyzer for Windows.
Double-click it to start installation. Follow the instructions as they appear on screen to install NetFlow Analyzer on to your machine successfully. NetFlow Analyzer supports both, PostgreSQL and MSSQL as database. Select the desired database and click Next.

What is the difference between NetFlow and syslog?

NetFlow was introduced on Cisco routers and provides the ability to collect IP network statistics, including packet counts. It will not alert on system events like interface down. Syslog does not have any overhead but NetFlow may place a load on CPU when utilized. Also, the volume of NetFlow data can be quite large.

Does Cisco ASA support NetFlow Version 9 services?

The Cisco ASA supports NetFlow Version 9 services. The ASA and ASASM implementations of NSEL provide a stateful, IP flow tracking method that exports only those records that indicate significant events in a flow. In stateful flow tracking, tracked flows go through a series of state changes.

How to configure the ASA to send neflow information to the NetFlow collector?

The document below presents how to use ASDM to configure the ASA to send Neflow information to the Netflow collector. In ASDM under Configuration go in Device Management > Logging > Netflow. There you can set the Netflow collector ip address, the ASA interface it is behind and the port it supports.

What is Asa NetFlow security event logging (NSEL)?

It is called Netflow Security Event Logging (NSEL) and was originally introduced on the Cisco ASA 5580. Now, with the latest firmware ( ASA 8.2.x or later), it has also been extended to other Cisco ASA models. In fact, ASA NetFlow was never intended to be used for real-time or live traffic analysis.

How to configure the NetFlow collector in ASDM?

Configure the Collector In ASDM under Configuration go in Device Management > Logging > Netflow. There you can set the Netflow collector ip address, the ASA interface it is behind and the port it supports. You can also set the template packet send frequency and disable syslogs that are redundant after the Netflow information extraction.