To send the NetFlow information to the
vRealize Network Insight NetFlow collector, configure the physical device manually. Here are the steps for the configuration in most of the physical devices:
- Create a flow record.
The required fields for a flow record are as follows:
- Mark the following fields as
Match
.-
ipv4 protocol
-
ipv4 source address
-
ipv4 destination address
-
transport source-port
-
transport destination-port
-
interface input
-
- Mark the following fields as
Collect
.-
direction
-
counter bytes
-
counter packets
-
timestamp sys-uptime first
-
timestamp sys-uptime last
-
- Mark the following field as
Match
orCollect
. If not, skip it.transport tcp flags
- Mark the following fields as
- Create a flow exporter.
- Provide vRealize Network Insight NetFlow collector IP and port 2055.
- Configure the flow cache as follows:
- Active timeout: 30 seconds
- Inactive timeout: 60 seconds
- Create the flow monitor using the created flow record and flow exporter.
- Configure the monitor on each interface.
Prerequisites
Example
The sample steps to configure the physical devices are provided in the following sections:
Note: The steps may vary from version to version and device to device.