On Fri, Nov 22, 2019 at 01:39:24PM -0500, Keith Wright via WLUG wrote:
I am using Debian and trying to set up a couple of ethernet cards. I've seen strange behavior.
Have I found a bug? Done something stupid?
Rather than clog the WLUG list with details, I have put my question on a web page, which I will update as I learn more:
You have two NICs configured in the same subnet. If you intend to make two subnets for the Green and Red NICs, make sure the subnet addresses doesn't overlap. If you want them to be in the same subnet (why?) then the behavior you see is normal for Weak Host Model systems: https://en.wikipedia.org/wiki/Host_model You can reconfigure your system for Strong Host Model and/or use multiple routing tables and source rules to control which NIC is used for which traffic: https://access.redhat.com/solutions/30564