Route ZT and physical network without NAT

Community Support
1

Hello,

I’m trying to route a ZT network to and from a remote physical network, but I can’t use NAT since some connections need to be initiated from the physical network.

Here are the details

ZT Network: 172.25.30.0/24
Physical network 172.20.0.0/16
Physical network router (it’s a Mikrotik hAP, can’t run zerotier cli) 172.20.21.254

Physical network ZT gateway (linux) 172.20.21.31
ZT gateway IP 172.25.30.31
Linux gateway has IPv4 forward enabled in sysctl.conf

I added 172.20.0.0/15 via 172.25.31.31 to managed networks in zerotier, and added a route on mikrotik, 172.25.31.0/24 via 172.20.21.31

I can ping mikrotik router from everywhere, and the gateway, but I can’t ping any 172.20.* from ZT network, neither I can ping any ZT host from the physical network…

Any idea what I could be doing wrong ?

2

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