Tim,

Thanks for your reply. I'm working with an RPI4 with Debian 12 installed as a hobby server. Since ifconfig is being depreciated on Debian I was determined to learn how to use ip. I eventually found this cheat sheet https://access.redhat.com/sites/default/files/attachments/rh_ip_command_cheatsheet_1214_jcs_print.pdf

I was able to manually configure eth0 for network connectivity. 

Next I did an apt update, apt upgrade successfully. This eliminated the "filtering via arp/ip/ip6tables" error. Now I can continue troubleshooting why network stopped working. This is what I get from sudo systemctl status networking.service

× networking.service - Raise network interfaces
     Loaded: loaded (/lib/systemd/system/networking.service; enabled; preset: enabled)
     Active: failed (Result: signal) since Fri 2023-10-13 21:01:56 UTC; 7min ago
       Docs: man:interfaces(5)
    Process: 1463 ExecStart=/sbin/ifup -a --read-environment (code=killed, signal=BUS)
    Process: 1464 ExecStopPost=/usr/bin/touch /run/network/restart-hotplug (code=exited, status=1/FAILURE)
   Main PID: 1463 (code=killed, signal=BUS)
        CPU: 8ms

Oct 13 21:01:56 rpi4-20230918 systemd[1]: Starting networking.service - Raise network interfaces...
Oct 13 21:01:56 rpi4-20230918 systemd[1]: networking.service: Main process exited, code=killed, status=7/BUS
Oct 13 21:01:56 rpi4-20230918 touch[1464]: /usr/bin/touch: cannot touch '/run/network/restart-hotplug': No such file or directory
Oct 13 21:01:56 rpi4-20230918 systemd[1]: networking.service: Control process exited, code=exited, status=1/FAILURE
Oct 13 21:01:56 rpi4-20230918 systemd[1]: networking.service: Failed with result 'signal'.
Oct 13 21:01:56 rpi4-20230918 systemd[1]: Failed to start networking.service - Raise network interfaces.

Thanks,

Mike

Mike,

You might want to start by installing the package "net-tools" and "wireless-tools"; these two packages will get you the "ifconfig" command as well as the "iwconfig" command. so you can see what the network is doing.

I'm old school and while I've learned to use the "ip" commands, my hands naturally want to type "ifconfig -a".

Thanks,

Tim.

On Wed, Oct 11, 2023 at 7:59 PM Mike Long via WLUG <wlug@lists.wlug.org> wrote:

I installed Debian 12 on a PI4. I got rtl_433 working and receiving data
while connected to the pi4 using ssh. Once that was accomplished I
rebooted via "sudo shutdown -r now" to verify that all the settings
would survive a reboot. When the pi rebooted it was no longer available
on the network. I connected to the pi4 console directly and received
this message at the login screen "filtering via arp/ip/ip6tables is no
longer available by default".

I am new to debian and not having ifconfig available is a real handicap
for me. Can someone please offer some advice or point me to resources
that will help me fix this issue. Searching the internet has not offered
any helpful resources so far.

Thanks,

Mike

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