OK, so this was something I needed to do with CentOS 6: https://vivithemage.com/2014/08/08/centos-6-multiple-vlans-with-one-eth-device/ This is how to do it in CentOS 7. There are some slight changes required compared to CentOS 6, but they’re nominal. It’s possible it will work for CentOS 8, but it is untested. Where there is a command like vi bla/bla/file … Continue reading CentOS 7 multiple VLANs on one interface