Assign IP address at boot time


jchludzinski
 

Where do I assign a static IP address to my sole network interface?

I tried using the Linux boot parameters (in extlinux.conf):

LABEL Arria10 SOCDK SDMMC
    KERNEL ../zImage
    FDT ../socfpga_arria10_phead.dtb
    APPEND root=/dev/mmcblk0p2 rw rootwait earlyprintk console=ttyS0,115200n8 ip=192.168.0.101:255.255.255.0:eth0
 
Then I tried editing: /etc/network/interfaces
 
iface eth0 inet static
address 192.168.0.101
netmask 255.255.255.0
 
Both failed. Where do I go?


Rudolf J Streif
 

Hi there,

On 3/9/21 1:27 PM, jchludzinski via lists.yoctoproject.org wrote:
Where do I assign a static IP address to my sole network interface?

That depends on whether or not you are using a network manager and if so which one.

You haven't told us much about your board and it's network interfaces and how you built your system.

I tried using the Linux boot parameters (in extlinux.conf):

LABEL Arria10 SOCDK SDMMC
    KERNEL ../zImage
    FDT ../socfpga_arria10_phead.dtb
    APPEND root=/dev/mmcblk0p2 rw rootwait earlyprintk console=ttyS0,115200n8 ip=192.168.0.101:255.255.255.0:eth0
 
Then I tried editing: /etc/network/interfaces
 
iface eth0 inet static
address 192.168.0.101
netmask 255.255.255.0
 
Both failed. Where do I go?

To start, do you have the driver required for your network interface? You can use ifconfig -a to see if your network interface is detected by the kernel. You should also look at the kernel log if the network interface is configured.

:rjs




-- 
Rudolf J Streif
CEO/CTO ibeeto
+1.855.442.3386 x700


jchludzinski
 

To start, do you have the driver required for your network interface?
Yes, the network/Ethernet device is recognized by Linux and the appropriate driver is loaded. If I use:

$ ip add add 192.168.9.101/24 dev eth0

I’m up and running. But I want the IP assignment to happen during boot time.


Zoran
 

Hello,

Maybe you can stop in the U-Boot monitor, and check your environment?
=>
=> print serverip
=> print ipaddr
=> print gatewayip
=> print gw_ip

And see what and how your bootcmd and similar env variables look like?

And if you do not have defined above, to add them (according to ash
script) and try booting again?

Zee
_______


On Tue, Mar 9, 2021 at 10:28 PM jchludzinski via
lists.yoctoproject.org
<jchludzinski=vivaldi.net@...> wrote:


Where do I assign a static IP address to my sole network interface?

I tried using the Linux boot parameters (in extlinux.conf):

LABEL Arria10 SOCDK SDMMC
KERNEL ../zImage
FDT ../socfpga_arria10_phead.dtb
APPEND root=/dev/mmcblk0p2 rw rootwait earlyprintk console=ttyS0,115200n8 ip=192.168.0.101:255.255.255.0:eth0

Then I tried editing: /etc/network/interfaces

iface eth0 inet static
address 192.168.0.101
netmask 255.255.255.0

Both failed. Where do I go?



Rudolf J Streif
 

On 3/9/21 11:34 PM, jchludzinski wrote:
To start, do you have the driver required for your network interface?
Yes, the network/Ethernet device is recognized by Linux and the appropriate driver is loaded. If I use:

$ ip add add 192.168.9.101/24 dev eth0

I’m up and running. But I want the IP assignment to happen during boot time.
What is your startup manager? systemd or SysVInit?

--
Rudolf J Streif
CEO/CTO ibeeto
+1.855.442.3386 x700


jchludzinski
 

What is your startup manager? systemd or SysVInit?
systemd


Rudolf J Streif
 

Create the file /etc/systemd/network/eth0.conf:

[Match]
Name=eth0
[Network]
Address=<ip>
Gateway=<ip>
DNS=<ip>

Restart systemd-networkd

# systemctl restart systemd-networkd

or reboot.

:rjs

On 3/10/21 11:31 AM, jchludzinski wrote:

What is your startup manager? systemd or SysVInit?
systemd
--
Rudolf J Streif
CEO/CTO ibeeto
+1.855.442.3386 x700


jchludzinski
 

Create the file /etc/systemd/network/eth0.conf:

[Match]
Name=eth0
[Network]
Address=<ip>
Gateway=<ip>
DNS=<ip>

That didn't work BUT editing /lib/systemd/network/80-wired.network
[Match]
Name=en* eth*
KernelCommandLine=!nfsroot

[Match]
Name=eth0
[Network]
Address=192.168.0.101/24
#Gateway=<ip>
#DNS=<ip>

[Network]
DHCP=no

[DHCP]
#RouteMetric=10
#ClientIdentifier=mac
... did work, after:
root@arria10:~# systemctl restart systemd-networkd


Rudolf J Streif
 


On 3/10/21 1:32 PM, jchludzinski wrote:
Create the file /etc/systemd/network/eth0.conf:

[Match]
Name=eth0
[Network]
Address=<ip>
Gateway=<ip>
DNS=<ip>

That didn't work BUT editing /lib/systemd/network/80-wired.network
[Match]
Name=en* eth*
KernelCommandLine=!nfsroot

[Match]
Name=eth0
[Network]
Address=192.168.0.101/24
#Gateway=<ip>
#DNS=<ip>

[Network]
DHCP=no

[DHCP]
#RouteMetric=10
#ClientIdentifier=mac
... did work, after:
root@arria10:~# systemctl restart systemd-networkd
Preferred method for local configuration is using /etc/systemd/network. However, the probable reason why it did not work is that the file should be eth0.network. The name of the file(s) do not matter that much. The extension does though.
-- 
Rudolf J Streif
CEO/CTO ibeeto
+1.855.442.3386 x700


jchludzinski
 

Can this be done using boot parameters?

Something like(?):

LABEL Arria10 SOCDK SDMMC
    KERNEL ../zImage
    FDT ../socfpga_arria10_phead.dtb
    APPEND root=/dev/mmcblk0p2 rw rootwait earlyprintk console=ttyS0,115200n8 ip=192.168.0.101:255.255.255.0:eth0


Rudolf J Streif
 


On 3/11/21 10:12 AM, jchludzinski wrote:
Can this be done using boot parameters?
Not that I know of. Why anyway?

Something like(?):

LABEL Arria10 SOCDK SDMMC
    KERNEL ../zImage
    FDT ../socfpga_arria10_phead.dtb
    APPEND root=/dev/mmcblk0p2 rw rootwait earlyprintk console=ttyS0,115200n8 ip=192.168.0.101:255.255.255.0:eth0
-- 
Rudolf J Streif
CEO/CTO ibeeto
+1.855.442.3386 x700


Chen Qi
 

Try adding the following line to the match section of the 80-wired.network file.
KernelCommandLine=!ip

Regards,
Chen Qi

On 03/12/2021 02:12 AM, jchludzinski via lists.yoctoproject.org wrote:
Can this be done using boot parameters?

Something like(?):

LABEL Arria10 SOCDK SDMMC
    KERNEL ../zImage
    FDT ../socfpga_arria10_phead.dtb
    APPEND root=/dev/mmcblk0p2 rw rootwait earlyprintk console=ttyS0,115200n8 ip=192.168.0.101:255.255.255.0:eth0