Dual NIC/Networks

[debianuser_3689]

Got probably a simple issue but I cannot figure out how to fix this so hopefully someone here can shed some light on what to fix?

I have a newly installed debian system that I am trying to configure it to work on 2 networks: eth0 is a local network of 10.0.0.10 and eth1 is for the internet which is 10.11.12.100. These were setup in gnome and it took a little bit to get everything talking but when I rebooted the system something odd happened. Eth0 was working and I was able to ping other devices on that network however eth1 did not. I had to disable eth0 and re-enable it which then eth1 started to work.

Any ideas as to what I need to change in a config somewhere?

Thanks in advance for any help!

[CwF]

It may be easier to do it opposite. Eth0 seems assumed to be the internet, it should be possible either way.
Going with the grain define eth0 in /etc/network/interfaces.d/ as the internet one, and also eth1 as your intranet.
I use wicd and it leaves things alone, there is also 2 more left undefined. Any other fancy GUI I've tried just mucks things up.

[p.H]

Please post the full IP parameters for both interfaces : address, netmask or prefix length, gateway, DNS...
Also post the ping commands you issued and their output and the output of

Code: Select all

ip addr
ip route
cat /etc/resolv.conf

after booting when eth1 "does not work" and then after re-enabling it.

[Head_on_a_Stick]

Any ideas as to what I need to change in a config somewhere?

Which method are you using to connect?

Any clues in the systemd journal?

https://www.digitalocean.com/community/ ... stemd-logs