r/zerotier

I wanted to play minecraft on tlauncher with Friends. They are on windows, Im on my MacBook. They both can link, but my tlauncher doesnt find server. What should i do

I am new to ZeroTier and have rudimentary knowledge of networking technology. I came to ZeroTier as a solution to remotely manage my home networking devices while I am away from home.

I am using a Cudy LT500 4G/LTE router, my internet access is through my mobile carrier. I will call this router "Router1".

My mobile carrier uses CGNAT, so it is not possible to see my public IP address using DDNS. DDNS gives me the carrier's public IP address, no the IP address assigned to my router by the carrier. This makes it impossible to use a standard VPN solution such as OpenVPN.

Searching for a solution brought me to ZeroTier.

My Cudy router has built-in support for ZeroTier. The choices under the VPN drop-down selection list include "ZeroTier Master" and "ZeroTier Slave".

I followed the Cudy instructions for configuring Router1 for ZeroTier. The Cudy instructions state to select "ZeroTier Master" as the VPN service. Then enter the ZeroTier network name. This causes a ZeroTier device ID to be displayed on the screen, and this device ID allows me to add the device to my ZeroTier network.

So far so good. I can access the Router1 web admin panel by entering its ZeroTier virtual IP address ("ZT IP") into a browser running on my Android tablet, which I also added to my ZeroTier network.

Inside my local network I have another Cudy router, I will call this "Router2".

I have configured Router2 to act as a wifi Access Point by disabling DHCP and giving it a static IP address within the same local network range. Router2 LAN Ethernet port is connected to Router1 LAN Ethernet port via Ethernet Cable.

I want to be able to access the Router2 web admin panel through ZeroTier.

My first try, I configured Router2 as "ZeroTier Master", following the same steps as for Router1. This allowed me to add Router2 to my ZeroTier network, and I can see it in the devices list with its own device ID. However, Router2 is showing blank under "Public IP", "ZT Version" and "Last Active", which I assume indicates that Router2 is not able to communicate with ZeroTier servers. And I get "not found" when I try to use Router2's ZeroTier virtual IP address ("ZT IP") to access Router2's web admin panel.

I searched the Internet for a solution but I a not finding anything.

Router1 and Router2 being on the same LAN network made me think the configuring Router2 as "ZeroTier Slave" might offer a solution. So on Router2 selected "ZeroTier Slave" as the VPN service. Doing this brought up an additional data entry box labelled "Gateway". However, there is no guidance about what to enter as the parameter to designate Router1 as the gateway (or even if that is the correct solution). I tried entering the "ZT IP" address of Router1 as the Gateway for Router2 ZeroTier Slave, but still getting "not found", and still seeing blank under "Public IP", "ZT Version" and "Last Active" for Router2.

Wondering if anyone has been down this path and gotten this to work? Or if someone with more technical knowledge could suggest how to make this work? Or even to tell me I'm barking up the wrong tree? Is what I'm trying to do even possible?

EDIT - PROBLEM SOLVED! Turns out double-NAT was the causing the problem. Router2 (Cudy WR1300) has a built-in AP mode that also turns off NAT in addition to disabling DHCP. Turning on the built-in AP mode fixed the problem.
The Cudy WR1300 does not provide a way to manually turn off NAT The only way to turn off NAT is by enabling the built-in AP mode. So the problem was caused by not being able to turn off NAT when I attempted to manually configure Router2 as an AP.

I can't seem to get a clear answer from the documentation since it all seems to assume you want to route either all internet traffic through the ZT network via exit node, or none, but on a random host with a Zerotier client (iOS, macOS, Windows etc) how do I route:

• all traffic to 12.34.56.0/24 and 2001:db8:abcd::/48 through the ZT network via the exit node to the public internet & back again
• but all other internet traffic to the default (i.e. non-ZT) gateway?

Us announced that there is no longer us sanctions so am asking zerotier dev's to unban

And make service available again

Syria is a good country