Suitable (and open source) replacement:<p><a href="https:&#x2F;&#x2F;github.com&#x2F;zerotier&#x2F;ZeroTierOne" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;zerotier&#x2F;ZeroTierOne</a><p><a href="https:&#x2F;&#x2F;www.zerotier.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.zerotier.com&#x2F;</a><p>Also does a lot of other things, and is evolving into a full-fledged SDN layer. If you don&#x27;t want to use the pretty GUI they give you to create&#x2F;manage networks you can run your own &#x27;network controller&#x27; -- see READMEs in GitHub.