[help]why can the two nodes NOT ping in a LAN by using zerotier?

Hello.
I have a trouble with two zerotier-one nodes in a virtual VPN. I created a private zerotier VPN and anded several nodes. These nodes are android client(A), centos client(C), and ubuntu client(U). A and U are in the same LAN. The three nodes joined the same zerotier network-id and all are online status.

Ping is OK between A and C, but ping is NOT ok between A and U , between C and U by using virtual IPv4.

but in U, I can use command “zerotier-cli peers” and list a leaf is A. It shows the peers’ path, and one is the neighborhood A which IP route is 192.168.1.1(the LAN router) in the same LAN.

It’s strange that ping is unreachable host (U->A, U->C) and it’s timeout (A->U, C->U).
The ubuntu OS is very old (14.0.4 trusty), and the CPU is A7(Allwinner made).

Can someone help me? Thanks!

My first guess is check the firewall on U.

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.