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Network configuration with 2+ interfaces

To: cloud-init@xxxxxxxxxxxxxxxxxxx
From: Thomas Schneider <74cmonty@xxxxxxxxx>
Date: Wed, 19 Jul 2023 14:56:30 +0200
User-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.12.0

Hello,

I'm running a VM with 2+ interfaces on SLES 15SP3.

Each interface is configured via DHCP.

If I attach any interface as a single connection, the networkconfiguration works as expected including default gateway and DNS.

However, with 2+ interfaces, the default gateway and DNS settings areset randomly.

One can identify first, second and all other interfaces by its name:
ens192
ens224
ens256
...

In my interpretation ens192 is the first interface.

But default gateway and DNS are always configured from any of the otherinterfaces.


My understanding is that cloud-init configures all interfaces sequentially.

This is ok, but I must define a priority in order to declare whichdefault gateway and DNS to use.Otherwise a setup with 2+ interfaces and cloud-init will never workreliable.


Can you please advise how to fix this issue?
Is it possible to define a priority for all attached interfaces?

THX
Thomas