Setup Static IP Address

This article will show how to set up a static IP address for the Jetson Orin. By default, the Jetson Orin uses DHCP for Ethernet connections, and a hostname to find the unit on the network. This setup will use NetworkManager already installed as part of the Jetpack v6.2.1 BSP.

Warning

If the static IP address is set to something that is not accessible on the network, then the unit will no longer be accessible using the hostname, or IP address. This will require the unit to be opened to access the internal serial port to reconfigure the network or connected to a network that can be accessed.

To set a static IP address:

SSH into the device using the host name and username

Find the connection name of the interface you want to set the static IP address to

$ nmcli connection show
NAME                UUID                                  TYPE      DEVICE
Wired connection 1  d5ea0964-cdc5-438b-b9f1-cca7031926d8  ethernet  enP8p1s0
docker0             76e2a476-bfb0-4039-93fb-43fe0aa435d6  bridge    docker0

For example, to set the ethernet port to a static IP address, the connection name is 'Wired connection 1'.

Set the static IP address using:

sudo nmcli con mod '<Connection_name>' ipv4.addresses "<desired IP/mask>"

For example:

sudo nmcli con mod 'Wired connection 1' ipv4.addresses "10.10.41.108/21"

Set the gateway

sudo nmcli con mod 'Wired connection 1' ipv4.gateway "10.10.40.1"

You can find the gateway using

$ ip route
default via 10.10.40.1 dev enP8p1s0 proto dhcp metric 100
10.10.40.0/21 dev enP8p1s0 proto kernel scope link src 10.10.41.109 metric 100
169.254.0.0/16 dev docker0 scope link metric 1000 linkdown
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
192.168.1.0/24 dev wlP1p1s0 proto kernel scope link src 192.168.1.201

The gateway is 10.10.40.1 in this case.

Configure DNS

sudo nmcli con mod 'Wired connection 1' ipv4.dns "10.10.40.3"

You can find the DNS IP using

$ nmcli dev show | grep DNS
IP4.DNS[1]:                             127.0.0.1
IP4.DNS[2]:                             10.10.40.3

The DNS is 10.10.40.3 in this case.

Finally, set the connection type to manual. This will save the static configuration
```
sudo nmcli con mod 'Wired connection 1' ipv4.method "manual"
```

After running the commands above, you can visualize your entire network configuration by opening the <connection-name> file:

cd /etc/NetworkManager/system-connections/
sudo cat Wired\ connection\ 1

Expected file output:

[connection]
id=Wired connection 1
uuid=d5ea0964-cdc5-438b-b9f1-cca7031926d8
type=ethernet
timestamp=1777917663
[ethernet]
[ipv4]
address1=10.10.41.108/21,10.10.40.1
dns=10.10.40.3;
method=manual
[ipv6]
addr-gen-mode=eui64
ip6-privacy=2
method=auto
[proxy]

Reload the configuration file
```
sudo nmcli connection reload
```
Reboot the unit for the IP address to update
```
sudo reboot
```

You should now be able to ping the IP address you've set

> ping 10.10.41.108
Pinging 10.10.41.108 with 32 bytes of data:
Reply from 10.10.41.108: bytes=32 time<1ms TTL=63
Reply from 10.10.41.108: bytes=32 time<1ms TTL=63
Reply from 10.10.41.108: bytes=32 time<1ms TTL=63
Reply from 10.10.41.108: bytes=32 time<1ms TTL=63
Ping statistics for 10.10.41.108:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

You can also verify the IP address set to the Ethernet connection using

$ ip address show
4: enP8p1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 3c:6d:66:b4:83:7b brd ff:ff:ff:ff:ff:ff
    inet 10.10.41.108/21 scope global noprefixroute enP8p1s0
    valid_lft forever preferred_lft forever
    inet6 fe80::3e6d:66ff:feb4:837b/64 scope link noprefixroute
    valid_lft forever preferred_lft forever

To return to Dynamic Network Configuration (DHCP): Enter the following commands to remove the static IP address and return to DHCP mode. Note the order of commands is important. The examples assume 'Wired connection 1'. If not using 'Wired connection 1', replace with the connection name.

Set the connection type to auto

sudo nmcli con mod 'Wired connection 1' ipv4.method "auto"

Remove the gateway from the list

sudo nmcli con mod 'Wired connection 1' ipv4.gateway ""

Remove the static IP address from the list

sudo nmcli con mod 'Wired connection 1' ipv4.addresses ""