Jasmin shahrzad
asked on
network problem on ubuntu 20.04 desktop
I have a ubuntu 20.04 (install on dell latitude 7400).
when i using standard net 01-xxx.yaml (as below)
---
network:
version: 2
renderer: NetworkManager
----
i change my netplan to bridge and using following netplan.
-----
network:
ethernets:
"my-netkort-interface:
dhcp4: no
version: 2
bridges:
br0:
dhcp4: no
addresses:
- 10.74.0.18/24
gateway4: 10.74.0.1
nameservers:
addresses:
- 10.74.0.122
interfaces:
- my-netkort-interface
----
i can't connect to internet.
something is strange yaml file not working as yaml file. normally i yaml file in vi when you write fx.
network: then enter the next line is begin with automatically tab under version. but here dose not do that it's working as normal file !!
when i using standard net 01-xxx.yaml (as below)
---
network:
version: 2
renderer: NetworkManager
----
i change my netplan to bridge and using following netplan.
-----
network:
ethernets:
"my-netkort-interface:
dhcp4: no
version: 2
bridges:
br0:
dhcp4: no
addresses:
- 10.74.0.18/24
gateway4: 10.74.0.1
nameservers:
addresses:
- 10.74.0.122
interfaces:
- my-netkort-interface
----
i can't connect to internet.
something is strange yaml file not working as yaml file. normally i yaml file in vi when you write fx.
network: then enter the next line is begin with automatically tab under version. but here dose not do that it's working as normal file !!
Ashok Dewan
What error it is displaying? Is it displaying an error by showing at what line problem lies?
ASKER
no error when i change to bridges then say netplan try then netplan apply and all is correct. then after a while is disconnect to net.
ASKER
something very strange. laptop don't have a wired net. it get it via docking station.
when i make a bridge then i create bridge of docking net. maybe is therefore is not working.
when i make a bridge then i create bridge of docking net. maybe is therefore is not working.
ASKER CERTIFIED SOLUTION
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Note: When installing Ubuntu, networking should work, with no changes to any NetPlan files.
Try simply removing the NetPlan file you created + test if networking magically begins working again.
https://linuxhint.com/install_netplan_ubuntu/ provides a good debugging guide.
Try simply removing the NetPlan file you created + test if networking magically begins working again.
https://linuxhint.com/install_netplan_ubuntu/ provides a good debugging guide.
ASKER
I found what the problem was. gateway4 is not routed to lxd, it's because of dockingstation. i used dockingstation because there is not wired kort in laptop. i change to orginal docking station for dell. and it's working now.