Trying connect Android to 1.12.1 OpenWRT router

ZeroTier Update Issue

Hello! I can’t update ZeroTier on OpenWRT; the last version available there is 1.12.1. I now understand that devices running version 1.14 and above don’t work with it. I’ve rolled back all my PCs to 1.12.1 (now I have ping).

Network Configuration

  • ZeroTier Network: 172.28.28.*
  • Local Network: 192.168.1.*
  • Router IPs: 172.28.28.1, 192.168.1.1 (#1.12.1)

However, I can’t find a working version for Android. I’ve already tried versions 1.8.6, 1.12.1, 1.12.0, 1.12.2, 1.6.6, and 1.10.3.

Is there a working version compatible with 1.12.1? It should be possible since it worked before; otherwise, have the ZeroTier servers changed, making it incompatible now?

I used this page to make it working

Now Android 1.14.0 works with my network and all 1.12.1 PC works too

This is my settings

This is a default rule set that allows IPv4 and IPv6 traffic but otherwise
# behaves like a standard Ethernet switch.
#
# Please keep in mind that ZeroTier versions prior to 1.2.0 do NOT support advanced
# network rules.
#
# Since both senders and receivers enforce rules, you will get the following
# behavior in a network with both old and new versions:
#
# (old: 1.1.14 and older, new: 1.2.0 and newer)
#
# old ↔ old: No rules are honored.
# old ↔ new: Rules work but are only enforced by new side. Tags will NOT work, and
# capabilities will only work if assigned to the new side.
# new ↔ new: Full rules engine support including tags and capabilities.
#
# We recommend upgrading all your devices to 1.2.0 as soon as convenient. Version
# 1.2.0 also includes a significantly improved software update mechanism that is
# turned on by default on Mac and Windows. (Linux and mobile are typically kept up
# to date using package/app management.)
#
#
#
# Allow only IPv4, IPv4 ARP, and IPv6 Ethernet frames.
#
#MY ADDITIONAL FROM FORUM START
accept ethertype arp;
#MY ADDITIONAL FROM FORUM STOP

drop
not ethertype ipv4
and not ethertype arp
and not ethertype ipv6
;
#
#
# Uncomment to drop non-ZeroTier issued and managed IP addresses.
#
# This prevents IP spoofing but also blocks manual IP management at the OS level and
# bridging unless special rules to exempt certain hosts or traffic are added before
# this rule.
#
#drop
# not chr ipauth
#;

# Accept anything else. This is required since default is ‘drop’.
accept;

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