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PropertyDescription
allow-default (string; yes | no)A network can override the systems default route (force VPN mode).
allow-global (string; yes | no) ZeroTier IP addresses and routes can overlap public IP space.
allow-managed (string; yes | no)ZeroTier managed IP addresses and routes are assigned.
arp-timeout ( number; default: auto)ARP timeouts value.
comment (string; Default: )Descriptive comment for the interfaces.
copy-from Allows copying existing interfaces configuration.
disable-running-check (string; yes | no)Force interface in "running" state.
instance (string; Default: zt1)ZeroTier instance name.
name (string; default: zerotier1)A short name.
network (string; Default)16-digit network ID.


Controller


RouterOS implements ZeroTier functionality in the role of a node where most of the network configuration must be done on the ZeroTier webpage dashboard. However, in situations where you would prefer to do all the configuration on your own device, RouterOS offers to host your own controller

A common misunderstanding is to conflate network controllers with root servers (planet and moons). Root servers are connection facilitators that operate at the VL1 level. Network controllers are configuration managers and certificate authorities that belong to the VL2 level. Generally, root servers don’t join or control virtual networks and network controllers are not root servers, though it is possible to have a node do both.

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/zerotier/controller/

Every ZeroTier instance has a self-hosting network controller that can be used to host virtual networks. A controller is responsible for admitting members to the network, and issuing default configuration information including certificates. Controllers can in theory host up to 2^24 networks and serve many millions of devices (or more), but we recommend spreading large numbers of networks across many controllers for load balancing and fault tolerance reasons.

Parameters

PropertyDescription
broadcast  ( yes | no; Default: yes)Allow receiving broadcast (FF:FF:FF:FF:FF:FF) packets.
comment (string; Default: )Descriptive comment for the controller.

copy-from (string; Default: )

Copies an existing item. It takes default values of a new item's properties from another item. If you do not want to make an exact copy, you can specify new values for some properties. When copying items that have names, you will usually have to give a new name to a copy.
instance (string; Default: zt1)ZeroTier instance name.
ip-range (IP; Default: )IP range, for example, 172.16.16.1-172.16.16.254.
 ip6-6plane ( yes | no; Default: no)An option gives every member a /80 within a /40 network but uses NDP emulation to route all IPs under that /80 to their owner. The 6plane mode is great for use cases like Docker since it allows every member to assign IPv6 addresses within its /80 that just work instantly and globally across the network.
ip6-rfc4193 ( yes | no; Default: no)The rfc4193 mode gives every member a /128 on a /88 network.
ip6-range (IPv6; Default: )IPv6 range, for example fd00:feed:feed:beef::-fd00:feed:feed:beef:ffff:ffff:ffff:ffff.
mtu (integer; Default: 2800)Network MTU.
multicast-limit (integer: Default: 32)Maximum recipients for a multicast packet.
name (string; Default: )A short name for this controller.
network (string; Default)16-digit network ID.
private ( yes | no; Default: yes)Enables access control.
routes (IP@GW; Default: )Push routes in the following format:
Routes ::= Route[,Routes]
  Route ::= Dst[@Gw]

Configuration example

In the following example, we will use RouterOS built-in ZeroTier controller to send our new network hosts appropriate certificates, credentials, and configuration information. The controller will operate from the "RouterOS Home" device and we will join in our network 3 units: mobile phone, laptop, RouterOS Office device, but theoretically, you can join up to 100 devices in one network.

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RouterOS Home

First, we enable the default instance which operates at the VL1 level :

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[admin@Home] /zerotier> print
Columns: NAME, PORT, IDENTITY.PUBLIC
# NAME  PORT  IDENTITY.PUBLIC                                                                                                                              
;;; ZeroTier Central controller - https://my.zerotier.com/
0 zt1   9993  879c0b5265:0:d5fd2d17805e011d9b93ce8779385e427c8f405e520eea9284809d8444de0335a817xxb21aa4ba153bfbc229ca34d94e08de96d925a4aaa19b252da546693a28

Now we create a new network via the controller section which will operate at the VL2 level. Each network has its own controller and each network ID is generated from the controller address and controller ID combination.

Note that we use the private=yes option for a more secure network:

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[admin@Home] /zerotier> controller/add name=ZT-private instance=zt1 ip-range=172.27.27.10-172.27.27.20 private=yes routes=172.27.27.0/24
[admin@Home] /zerotier> controller/print
Columns: INSTANCE, NAME, NETWORK, PRIVATE
# INSTANCE  NAME        NETWORK           PRIVATE
0 zt1       ZT-private  879c0b5265a99e4b  yes

Add our new network under the interface section:

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[admin@Home] /zerotier> interface/add network=879c0b5265a99e4b name=myZeroTier instance=zt1 
[admin@Home] /zerotier> interface/print interval=1
Columns: NAME, MAC-ADDRESS, NETWORK, STATUS
# NAME        MAC-ADDRESS        NETWORK           STATUS       
0 myZeroTier  4A:19:35:6E:00:6E  879c0b5265a99e4b  ACCESS_DENIED

Each new peer asks for a controller to join the network, in this situation, we have ACCESS_DENIED status and we have to authorize a new peer, that is because we used the private=yes option.

After authorization, each member in the network receives information from the controller about new peers and approval they can exchange packets with them:

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[admin@Home] /zerotier> controller/member/print
Columns: NETWORK, ZT-ADDRESS
#  NETWORK     ZT-ADDRESS
0  ZT-private  879a0b5265
[admin@Home] /zerotier> controller/member/set 0 authorized=yes

Verify newly configured IP address and route:

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[admin@Home] /zerotier> /ip/address/print where interface~"Zero"
Flags: D - DYNAMIC
Columns: ADDRESS, NETWORK, INTERFACE
#   ADDRESS          NETWORK      INTERFACE 
4 D 172.27.27.15/24  172.27.27.0  myZeroTier

[admin@Home] /zerotier> /ip/route/pr where gateway~"Zero"
Flags: D - DYNAMIC; A - ACTIVE; c, y - COPY
Columns: DST-ADDRESS, GATEWAY, DISTANCE
    DST-ADDRESS     GATEWAY     DISTANCE
DAc 172.27.27.0/24  myZeroTier         0

RouterOS Office

Configuration on the Office device. We will enable the default instance and ask a controller to join the 879c0b5265a99e4b network:

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[admin@office] /zerotier> interface/add network=879c0b5265a99e4b instance=zt1 name=ZT-interface 
[admin@office] /zerotier> interface/print interval=1
Columns: NAME, MAC-ADDRESS, NETWORK, STATUS
# NAME          MAC-ADDRESS        NETWORK           STATUS       
0 ZT-interface  4A:40:1C:38:97:BA  879c0b5265a99e4b  ACCESS_DENIED

As previously, because our network is private, we have to authorize a new peer via "RouterOS home device". After that verify from controller received IP address and route:

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[admin@Home] /zerotier> controller/member/print
Flags: A - AUTHORIZED
Columns: NETWORK, ZT-ADDRESS, IP-ADDRESS, LAST-SEEN
#    NETWORK     ZT-ADDRESS  IP-ADDRESS    LAST-SEEN
0 A  ZT-private  879a0b5265  172.27.27.15           
1 A  ZT-private  554a914c7f  172.27.27.17           
2 A  ZT-private  a83ac6032a  172.27.27.10           
3    ZT-private  deba5dc5b1  172.27.27.13  3s348ms  
[admin@Home] /zerotier> controller/member/set 3 authorized=yes
[admin@Home] /zerotier> controller/member/print               
Flags: A - AUTHORIZED
Columns: NETWORK, ZT-ADDRESS, IP-ADDRESS, LAST-SEEN
#    NETWORK     ZT-ADDRESS  IP-ADDRESS    LAST-SEEN
0 A  ZT-private  879a0b5265  172.27.27.15           
1 A  ZT-private  554a914c7f  172.27.27.17           
2 A  ZT-private  a83ac6032a  172.27.27.10           
3 A  ZT-private  deba5dc5b1  172.27.27.13  4s55ms

Verify via ZeroTier obtained IP address and route:

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[admin@office] /zerotier> /ip/address/print where interface~"ZT"
Flags: D - DYNAMIC
Columns: ADDRESS, NETWORK, INTERFACE
#   ADDRESS          NETWORK      INTERFACE   
0 D 172.27.27.13/24  172.27.27.0  ZT-interface

[admin@office] /zerotier> /ip/route/print where gateway~"ZT"
Flags: D - DYNAMIC; A - ACTIVE; c, y - COPY
Columns: DST-ADDRESS, GATEWAY, DISTANCE
    DST-ADDRESS     GATEWAY       DISTANCE
DAc 172.27.27.0/24  ZT-interface         0

Other devices


Download the ZeroTier app for your mobile phone or computer and join your newly created network:

1) Via our Laptop ZeroTier application we join the 879c0b5265a99e4b network;

2) User Zerotier mobile app to join the 879c0b5265a99e4b network;

Note

Also all other new hosts you have to authorize under the /zerotier/controller/member/ section.

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