I Ubuntu 20.04 Desktop OS running on Raspberry Pi 4. I have connected a printer to the Pi's ethernet port, and I have troubles in assigning a static IP using netplan. The problem is I cannot find the name of the interface card. Right now I have created a static IP using Network Manager and with the below command I can see that it is on eth0 with IP 192.168.123.101. The problem is I can't find the interface card name.
hd2900@hd2900:~$ ip add show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether e4:5f:01:49:85:7f brd ff:ff:ff:ff:ff:ff
inet 192.168.123.101/24 brd 192.168.123.255 scope global noprefixroute eth0
valid_lft forever preferred_lft forever
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether e4:5f:01:49:85:80 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.94/24 brd 192.168.1.255 scope global dynamic noprefixroute wlan0
valid_lft 50472sec preferred_lft 50472sec
inet6 fe80::5d0a:3259:a2fc:a0d4/64 scope link noprefixroute
valid_lft forever preferred_lft forever
In /etc/netplan/0-rpi-ethernet-eth0.yaml I have this content, and I suspect that driver bcmgenet smsc95xx and lan78xx is causing the problem.
hd2900@hd2900:/etc/netplan$ cat 10-rpi-ethernet-eth0.yaml
network:
ethernets:
eth0:
# Rename the built-in ethernet device to "eth0"
match:
driver: bcmgenet smsc95xx lan78xx
set-name: eth0
dhcp4: true
optional: true
To set up a static IP address I need to edit /etc/netplan/01-network-manager-all.yaml and I need to know the name of the network interface card.
hd2900@hd2900:/etc/netplan$ cat 01-network-manager-all.yaml
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager
As suggesteed by Simon Banks, I changed my file as below. However, I need to add a wifi connection.
network:
version: 2
renderer: networkd
ethernets:
eth0:
dhcp4: false
addresses: [192.168.123.101/24]
gateway4: 192.168.123.1
match:
driver: bcmgenet smsc95xx lan78xx
set-name: eth0
In order to add a wifi will below addition to the code work?
network:
version: 2
renderer: networkd
ethernets:
eth0:
dhcp4: false
addresses: [192.168.123.101/24]
gateway4: 192.168.123.1
match:
driver: bcmgenet smsc95xx lan78xx
set-name: eth0
wifis:
wlan0:
dhcp4: true
access-points: "SSID NAME"
password: "password"
According to the suggests by Simon, I have changed the file /etc/netplan/01-network-manager-all.yaml to
cat /etc/netplan/01-network-manager-all.yaml
Let NetworkManager manage all devices on this system
network: version: 2 renderer: networkd ethernets: eth0: dhcp4: false addresses: [192.168.123.101/24] gateway4: 192.168.123.1 match: driver: bcmgenet smsc95xx lan78xx set-name: eth0 version: 2 wifis: wlan0: dhcp4: yes optional: true access-points: "HiddenDimsum2900_24Ghz": password: "mysecretPassword"
Hereafter I did sudo netplan --debug apply and got this output
sudo netplan --debug apply
** (generate:161651): DEBUG: 20:57:29.401: Processing input file /etc/netplan/01-network-manager-all.yaml..
** (generate:161651): DEBUG: 20:57:29.402: starting new processing pass
** (generate:161651): WARNING **: 20:57:29.402: `gateway4` has been deprecated, use default routes instead.
See the 'Default routes' section of the documentation for more details.
** (generate:161651): DEBUG: 20:57:29.402: wlan0: adding wifi AP 'HiddenDimsum2900_24Ghz'
** (generate:161651): DEBUG: 20:57:29.402: Processing input file /etc/netplan/10-rpi-ethernet-eth0.yaml..
** (generate:161651): DEBUG: 20:57:29.403: starting new processing pass
** (generate:161651): DEBUG: 20:57:29.403: We have some netdefs, pass them through a final round of validation
** (generate:161651): DEBUG: 20:57:29.403: wlan0: setting default backend to 1
** (generate:161651): DEBUG: 20:57:29.403: Configuration is valid
** (generate:161651): DEBUG: 20:57:29.403: eth0: setting default backend to 1
** (generate:161651): DEBUG: 20:57:29.403: Configuration is valid
** (generate:161651): DEBUG: 20:57:29.405: Generating output files..
** (generate:161651): DEBUG: 20:57:29.405: openvswitch: definition eth0 is not for us (backend 1)
** (generate:161651): DEBUG: 20:57:29.405: NetworkManager: definition eth0 is not for us (backend 1)
** (generate:161651): DEBUG: 20:57:29.405: Creating wpa_supplicant config
** (generate:161651): DEBUG: 20:57:29.406: wlan0: Creating wpa_supplicant configuration file run/netplan/wpa-wlan0.conf
** (generate:161651): DEBUG: 20:57:29.406: Creating wpa_supplicant unit /run/systemd/system/netplan-wpa-wlan0.service
** (generate:161651): DEBUG: 20:57:29.421: Creating wpa_supplicant service enablement link /run/systemd/system/systemd-networkd.service.wants/netplan-wpa-wlan0.service
** (generate:161651): DEBUG: 20:57:29.421: openvswitch: definition wlan0 is not for us (backend 1)
** (generate:161651): DEBUG: 20:57:29.421: NetworkManager: definition wlan0 is not for us (backend 1)
DEBUG:netplan generated networkd configuration changed, restarting networkd
DEBUG:eth0 not found in {}
DEBUG:wlan0 not found in {}
DEBUG:eth0 exists in {'eth0': {'dhcp4': False, 'addresses': ['192.168.123.101/24'], 'gateway4': '192.168.123.1', 'match': {'driver': 'bcmgenet smsc95xx lan78xx'}, 'set-name': 'eth0'}}
DEBUG:Merged config:
network:
ethernets:
eth0:
addresses:
- 192.168.123.101/24
dhcp4: true
gateway4: 192.168.123.1
match:
driver: bcmgenet smsc95xx lan78xx
optional: true
set-name: eth0
renderer: networkd
version: 2
wifis:
wlan0:
access-points:
HiddenDimsum2900_24Ghz:
password: mySecretPassword
dhcp4: true
optional: true
DEBUG:netplan generated NM configuration changed, restarting NM
DEBUG:eth0 not found in {}
DEBUG:wlan0 not found in {}
DEBUG:eth0 exists in {'eth0': {'dhcp4': False, 'addresses': ['192.168.123.101/24'], 'gateway4': '192.168.123.1', 'match': {'driver': 'bcmgenet smsc95xx lan78xx'}, 'set-name': 'eth0'}}
DEBUG:Merged config:
network:
ethernets:
eth0:
addresses:
- 192.168.123.101/24
dhcp4: true
gateway4: 192.168.123.1
match:
driver: bcmgenet smsc95xx lan78xx
optional: true
set-name: eth0
renderer: networkd
version: 2
wifis:
wlan0:
access-points:
HiddenDimsum2900_24Ghz:
password: mysecretPassword
dhcp4: true
optional: true
INFO:[]
WARNING:Cannot find unique matching interface for eth0: {'driver': 'bcmgenet smsc95xx lan78xx'}
DEBUG:Link changes: {}
DEBUG:netplan triggering .link rules for lo
From the output above I am wondering if the issue that I cannot connect to wlan0 is because wlan0 is not found in the first place?
When I do ip addr I got below output
ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether e4:5f:01:49:85:7f brd ff:ff:ff:ff:ff:ff
inet 192.168.123.101/24 brd 192.168.123.255 scope global noprefixroute eth0
valid_lft forever preferred_lft forever
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether e4:5f:01:49:85:80 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.94/24 brd 192.168.1.255 scope global dynamic noprefixroute wlan0
valid_lft 51306sec preferred_lft 51306sec
inet6 fe80::5d0a:3259:a2fc:a0d4/64 scope link noprefixroute
valid_lft forever preferred_lft forever
iwconfig yields this output
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11 ESSID:"HiddenDimsum2900_24Ghz"
Mode:Managed Frequency:2.462 GHz Access Point: 90:F8:91:3F:5F:5F
Bit Rate=72.2 Mb/s Tx-Power=31 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=64/70 Signal level=-46 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:93 Invalid misc:0 Missed beacon:0
