My internet service provider (FIOS) doesn’t yet (sad face) offer IPv6 capable service, so I’ve set up an IPv6 tunnel using the Hurricane Electric tunnel broker. I want to provide IPv6 connectivity to multiple systems in my house, but not to all systems in my house 1. In order to meet those requirements, I’m going to set up the tunnel on the router, and then expose connectivity over an IPv6-only VLAN.

I recently acquired a managed switch for my home office in order to segment a few devices off onto their own isolated vlan. As part of this, I want to expose these vlans on my desktop using Open vSwitch (OVS), and I wanted to implement the configuration using NetworkManager rather than either relying on the legacy /etc/sysconfig/network-scripts scripts or rolling my own set of services. These are my notes in case I ever have to do this again.

These are my notes on making OpenStack play well with firewalld and NetworkManager. NetworkManager By default, NetworkManager attempts to start a DHCP client on every new available interface. Since booting a single instance in OpenStack can result in the creation of several virtual interfaces, this results in a lot of: May 19 11:58:24 pk115wp-lkellogg NetworkManager[1357]: <info> Activation (qvb512640bd-ee) starting connection ‘Wired connection 2’ You can disable this behavior by adding the following to /etc/NetworkManager/NetworkManager.