Jetson Networking

On Jetson we assume there are two network interfaces available for enabling camera based systems. One is for internet connection, and another one is used to communicate with camera devices through PoE switch. Jetson has a systmed service jetson-networking to setup these two interfaces. On Jetson AGX Orin and Orin Nx the external interface is named as eth0, and the camera interface is named as eth1 as below.

eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
      inet 192.168.100.1  netmask 255.255.255.0  broadcast 192.168.100.255
      inet6 fe80::2e0:4cff:fe36:8f1f  prefixlen 64  scopeid 0x20<link>
      ether 00:e0:4c:36:8f:1f  txqueuelen 1000  (Ethernet)
      RX packets 156532  bytes 9721380 (9.7 MB)
      RX errors 0  dropped 0  overruns 0  frame 0
      TX packets 16287  bytes 707010 (707.0 KB)
      TX errors 0  dropped 0 overruns 0  carrier 0  collisions

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
      inet 192.168.0.33  netmask 255.255.255.0  broadcast 192.168.0.255
      inet6 fe80::4ab0:2dff:fe81:4ad8  prefixlen 64  scopeid 0x20<link>
      ether 48:b0:2d:81:4a:d8  txqueuelen 1000  (Ethernet)
      RX packets 332785  bytes 36237215 (36.2 MB)
      RX errors 0  dropped 0  overruns 0  frame 0
      TX packets 157048  bytes 11475164 (11.4 MB)
      TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Use the command below to enable jetson-networking service:

sudo systemctl enable jetson-networking

You will need to reboot the device so that related Network Manager configurations can be applied properly.

A DHCP server is running on the camera interface to provide IP addresses to the camera devices. The address pool starts from 192.168.100.150. You may check the IP address assignment by command dhcp-lease-list --lease /run/jetson/networking/jetson-dhcp-server.leases as shown below:

ubuntu@tegra-ubuntu:~$ dhcp-lease-list --lease /run/jetson/networking//jetson-dhcp-server.leases
To get manufacturer names please download http://standards.ieee.org/regauth/oui/oui.txt to /usr/local/etc/oui.txt
Reading leases from /run/jetson/networking//jetson-dhcp-server.leases
MAC                IP              hostname       valid until         manufacturer
===============================================================================================
00:00:1b:04:e5:13  192.168.100.151 -NA-           2023-11-27 05:49:46 -NA-
68:6d:bc:7d:7d:c7  192.168.100.150 DEFAULT        2023-11-27 05:45:29 -NA-

Note

On Jetson AGX Orin and Orin Nx it’s expected to use USB Ethernet adapter as the camera interface.

Note

Please make sure the camera interface’s link is up before starting jetson-networking service, otherwsie the service might not able able to set up DHCP server.