The ZeroTier network hypervisor is a self-contained network virtualization engine that implements an Ethernet virtualization layer similar to VXLAN built atop a cryptographically secure global peer-to-peer network. It provides advanced network virtualization and management capabilities on par with an enterprise SDN switch, but across both local and wide area networks and connecting almost any kind of app or device.

MikroTik has added ZeroTier to RouterOS v7.1rc2 as a separate package for the ARM/ARM64 architecture. 

Required Network Configuration

What ports does ZeroTier use?

It listens on three 3 UDP ports:

That means your peers could be listening on any port. To talk with them directly, you need to be able to send them to any port.

Recommended Local Network and Internet Gateway Configuration

These ZeroTier recommended guidelines are consistent with the vast majority of typical deployments using commodity gateways and access points:

Configuration example

By default, ZeroTier is designed to be zero-configuration. A user can start a new ZeroTier node without having to write configuration files or provide the IP addresses of other nodes. It’s also designed to be fast. Any two devices in the world should be able to locate each other and communicate almost instantly so the following example will enable ZeroTier on RouterOS device and connect one mobile phone using the ZeroTier application.

  1. Register on and Create A Network, obtain the Network ID, in this example: 1d71939404912b40;
  2. Download and Install ZeroTier NPK package in RouterOS, you can find under in the "Extra packages", upload package on the device and reboot the unit;
  3. Enable the default (official) ZeroTier instance:

    [admin@mikrotik] > zerotier/enable zt1

  4. Add a new network, specifying the network ID you created in the ZeroTier cloud console:

    [admin@mikrotik] zerotier/interface/add network=1d71939404912b40 instance=zt1

  5. Verify ZeroTier configuration:

    [admin@MikroTik] > zerotier/interface/print
    Flags: R - RUNNING
    #   NAME       MAC-ADDRESS        NETWORK           NETWORK-NAME     STATUS
    0 R zerotier1  42:AC:0D:0F:C6:F6  1d71939404912b40  modest_metcalfe  OK   

  6. Now you might need to allow connections from the ZeroTier interface to your router, and optionally, to your other LAN interfaces: 

    [admin@mikrotik] /ip firewall filter> add action=accept chain=forward in-interface=zerotier1 place-before=0
    [admin@mikrotik] /ip firewall filter> add action=accept chain=input in-interface=zerotier1 place-before=0

  7. Install a ZeroTier client on your smartphone or computer, follow the ZeroTier manual on how to connect to the same network from there.
  8. If "Access Control" is set to "Private", you must authorize nodes before they become members:

  9. [admin@MikroTik] > ip/address/print where interface~"zero"
    Flags: D - DYNAMIC
    #   ADDRESS             NETWORK        INTERFACE
    3 D  zerotier1
    [admin@MikroTik] > ping count=3
    SEQ HOST                                     SIZE TTL TIME       STATUS                                                                                                                                           
    0                            56  64 407us     
    1                            56  64 452us     
    2                            56  64 451us     
    sent=3 received=3 packet-loss=0% min-rtt=407us avg-rtt=436us max-rtt=452us 

You should specify routes to specific internal subnets in the ZeroTier cloud console, to make sure you can access those networks when connecting from other devices. 



ZeroTier`s peer is an informative section with a list of nodes that your node knows about. Nodes can not talk to each other unless they are joined and authorized on the same network.

[admin@Home] > zerotier/peer/print 
# INSTANCE  ZT-ADDRESS  LATENCY  ROLE    PATH                                                            
0 zt1       61d294b9cb  186ms    PLANET  active,preferred,,recvd:4s526ms                  
1 zt1       62f865ae71  270ms    PLANET  active,preferred,,recvd:4s440ms,sent:9s766ms   
2 zt1       778cde7190  132ms    PLANET  active,preferred,,recvd:4s579ms,sent:9s766ms 
3 zt1       992fcf1db7  34ms     PLANET  active,preferred,,recvd:4s675ms,sent:4s712ms
4 zt1       159924d630  130ms    LEAF    active,preferred,34.121.192.xx/21002,recvd:3s990ms,sent:3s990ms