Ricbot network issues - Revision history

Jca: /* Network Manager */

2026-09-02T13:36:50Z

Network Manager

← Older revision		Revision as of 15:36, 2 September 2026
Line 5:		Line 5:
	Just a summary of some items found on the internet.		Just a summary of some items found on the internet.

	=== Set Wi-Fi as ~~the primary www channel~~ ===		=== Set Wi-Fi as default route ===

	On robots with a cabled local network without internet, it is annoying that the wifi connection is not the default route for e.g., updating the operating system.		On robots with a cabled local network without internet access, it is annoying that the wifi connection is not the default route for, e.g., updating the operating system.

	See the default connection, like:		See the default connection, like:
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	192.168.7.0/24 dev eth0 proto kernel scope link src 192.168.7.22 metric 52		192.168.7.0/24 dev eth0 proto kernel scope link src 192.168.7.22 metric 52

	Here, the default is 192.168.7.6, the wired connection without ~~www~~ access.		Here, the default is 192.168.7.6, the wired connection without internet access.

	==== Solution ====		==== Solution ====

Jca: /* Set Wi-Fi as the primary www channel */

2026-09-02T13:26:38Z

Set Wi-Fi as the primary www channel

← Older revision		Revision as of 15:26, 2 September 2026
Line 10:		Line 10:

	See the default connection, like:		See the default connection, like:
	ip r		ip route
	default via 192.168.7.6 dev eth0 proto dhcp src 192.168.7.22 metric 52		default via 192.168.7.6 dev eth0 proto dhcp src 192.168.7.22 metric 52
	default via 10.197.208.1 dev wlan0 proto dhcp src 10.197.215.135 metric 600		default via 10.197.208.1 dev wlan0 proto dhcp src 10.197.215.135 metric 600

Jca: /* Solution */

2026-09-02T13:26:21Z

Solution

← Older revision		Revision as of 15:26, 2 September 2026
Line 46:		Line 46:

	Check default connection with		Check default connection with
	ip r		ip route
	default via 10.197.208.1 dev wlan0 proto dhcp src 10.197.215.135 metric 24		default via 10.197.208.1 dev wlan0 proto dhcp src 10.197.215.135 metric 24
	10.197.208.0/21 dev wlan0 proto kernel scope link src 10.197.215.135 metric 24		10.197.208.0/21 dev wlan0 proto kernel scope link src 10.197.215.135 metric 24
	192.168.7.0/24 dev eth0 proto kernel scope link src 192.168.7.4 metric 56		192.168.7.0/24 dev eth0 proto kernel scope link src 192.168.7.4 metric 56
	Now the default is wlan0, with the best metric.		Now the default is wlan0, with the best metric.

Jca: /* Solution */

2026-09-02T13:24:19Z

Solution

← Older revision		Revision as of 15:24, 2 September 2026
Line 47:		Line 47:
	Check default connection with		Check default connection with
	ip r		ip r
			default via 10.197.208.1 dev wlan0 proto dhcp src 10.197.215.135 metric 24
			10.197.208.0/21 dev wlan0 proto kernel scope link src 10.197.215.135 metric 24
			192.168.7.0/24 dev eth0 proto kernel scope link src 192.168.7.4 metric 56
			Now the default is wlan0, with the best metric.

Jca: /* Set Wi-Fi as the primary www channel */

2026-09-02T13:22:50Z

Set Wi-Fi as the primary www channel

← Older revision		Revision as of 15:22, 2 September 2026
Line 6:		Line 6:

	=== Set Wi-Fi as the primary www channel ===		=== Set Wi-Fi as the primary www channel ===

			On robots with a cabled local network without internet, it is annoying that the wifi connection is not the default route for e.g., updating the operating system.

			See the default connection, like:
			ip r
			default via 192.168.7.6 dev eth0 proto dhcp src 192.168.7.22 metric 52
			default via 10.197.208.1 dev wlan0 proto dhcp src 10.197.215.135 metric 600
			10.197.208.0/21 dev wlan0 proto kernel scope link src 10.197.215.135 metric 600
			192.168.7.0/24 dev eth0 proto kernel scope link src 192.168.7.22 metric 52

			Here, the default is 192.168.7.6, the wired connection without www access.

			==== Solution ====

			This can be fixed by using connection metrics. A low metric is the preferred connection.

	Need a package:		Need a package:

Jca: /* Set Wi-Fi as the primary www channel */

2026-09-02T13:17:20Z

Set Wi-Fi as the primary www channel

← Older revision		Revision as of 15:17, 2 September 2026
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	Restart NetworkManager		Restart NetworkManager
			sudo systemctl restart NetworkManager.service

			Check default connection with
			ip r

Jca: /* Network Manager */

2026-09-02T13:13:48Z

Network Manager

← Older revision		Revision as of 15:13, 2 September 2026
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	== Network Manager ==		== Network Manager ==

	Just a summary of items found on the internet.		Just a summary of some items found on the internet.

	=== Set Wi-Fi as the primary www channel ===		=== Set Wi-Fi as the primary www channel ===

	Need ~~an extra~~ package:		Need a package:
	sudo apt install ifmetric		sudo apt install ifmetric

Line 26:		Line 26:
	sudo nmcli c mod DTUdevice ipv4.route-metric 22		sudo nmcli c mod DTUdevice ipv4.route-metric 22
	sudo nmcli c mod mje6 ipv4.route-metric 23		sudo nmcli c mod mje6 ipv4.route-metric 23

			Restart NetworkManager

Jca: /* Set Wi-Fi as the primary www channel */

2026-09-02T13:12:31Z

Set Wi-Fi as the primary www channel

← Older revision		Revision as of 15:12, 2 September 2026
Line 22:		Line 22:
	Then change the metric for the cabled network - with a high metric		Then change the metric for the cabled network - with a high metric
	sudo nmcli c mod Wired\ connection\ 1 ipv4.route-metric 52		sudo nmcli c mod Wired\ connection\ 1 ipv4.route-metric 52

	And the same for the Wi-Fi network - with a lower metric		And the same for the Wi-Fi network - with a lower metric
	sudo nmcli c mod DTUdevice ipv4.route-metric 22		sudo nmcli c mod DTUdevice ipv4.route-metric 22
	sudo nmcli c mod ~~DTUdevice~~ ipv4.route-metric 23		sudo nmcli c mod mje6 ipv4.route-metric 23

Jca: Created page with "Back to Ricbot == Network Manager == Just a summary of items found on the internet. === Set Wi-Fi as the primary www channel === Need an extra package: sudo apt install ifmetric Get the connection names nmcli c NAME UUID TYPE DEVICE Wired connection 1 80468912-0922-305a-b845-e038e6a97530 ethernet eth0 DTUdevice 40daedca-0933-4103-87b9-e481d6db6fa4 wifi wlan0 lo 8..."

2026-09-02T13:11:40Z

Created page with "Back to Ricbot == Network Manager == Just a summary of items found on the internet. === Set Wi-Fi as the primary www channel === Need an extra package: sudo apt install ifmetric Get the connection names nmcli c NAME UUID TYPE DEVICE Wired connection 1 80468912-0922-305a-b845-e038e6a97530 ethernet eth0 DTUdevice 40daedca-0933-4103-87b9-e481d6db6fa4 wifi wlan0 lo 8..."

New page

Back to [[Ricbot]]

== Network Manager ==

Just a summary of items found on the internet.

=== Set Wi-Fi as the primary www channel ===

Need an extra package:
sudo apt install ifmetric

Get the connection names
nmcli c
NAME UUID TYPE DEVICE
Wired connection 1 80468912-0922-305a-b845-e038e6a97530 ethernet eth0
DTUdevice 40daedca-0933-4103-87b9-e481d6db6fa4 wifi wlan0
lo 8de6fa00-08f6-4e2d-8251-9db7c4107077 loopback lo
mje6 3469ffdb-50a9-4af4-ac8d-2dd6bf1680ab wifi --

The first column is the name. Remember to escape any spaces.

Then change the metric for the cabled network - with a high metric
sudo nmcli c mod Wired\ connection\ 1 ipv4.route-metric 52
And the same for the Wi-Fi network - with a lower metric
sudo nmcli c mod DTUdevice ipv4.route-metric 22
sudo nmcli c mod DTUdevice ipv4.route-metric 23