Introduction

This document provides installation guides for supported open-source libraries and applications that can be used with Napatech SmartNICs.

In this document

Procedures for the following open source libraries and applications are included:

libpcap
Napatech DPDK
Suricata
Snort
Zeek (formerly Bro)
TRex

This document also includes how to improve performance running open-source applications utilizing Napatech features.

Before you begin

The provided installation and configuration procedures require the following before you begin.

The Napatech driver and SmartNICs must be installed and started before the open-source libraries and applications are used. The latest Napatech driver package can be found at https://www.napatech.com/downloads/. Install the Napatech driver by running package_install_3gd.sh (located in the directory of the unpacked package):
```
./package_install_3gd.sh
```
Note: You will be prompted to install the Napatech libpcap. Select the libpcap version if you would like to use libpcap with Napatech SmartNICs and your open-source application.
The following command will start the Napatech driver and ntservice.
```
/opt/Napatech3/bin/ntstart.sh
```
An output example:
```
Loading nt3gd driver                                        [Done]
Creating driver device file                                 [Done]
Loading nt3gd_netdev driver                                 [Done]
Creating driver device file                                 [Done]
Starting NTService (this may take a while)                  [Done]
```
See DN-0379 or DN-1340 for more information about installation of the Napatech driver package and starting the driver.
If libpcap is required and you have not installed the Napatech libpcap during the Napatech driver installation, the Napatech libpcap must be installed as described in DN-0428.

Note: In this document, it is assumed that the Napatech driver and the Napatech libpcap are installed in the default installation directory, /opt/napatech3/. If the Napatech driver and the Napatech libpcap are installed elsewhere, the correct installation directory must be used.

Note: The installation process is described using a source-based installation on CentOS 7 as an example. You must adapt the installation process for other Linux distributions. As open-source applications are updated frequently, the installation procedure described in this document might not be optimal for the newer release packages.

Note: For security reasons, you may need open-source applications to run as an unprivileged user in a production environment. The described procedures in this document do not provide how to do this.