Mikrotik RB 750 ether 1 connected as PPPOE
Ether2 and rest of the ports as LAN
Internet working
No firewall filter rules defined
OVPN-OUT1 interface connected to a linux OVPN Server with tcp and without lzo compression
From mikrotik I can ping LAN side of the vpn server
From Server side unable to ping to any device behind mikrotik
OVPN Server IP: 10.3.8.1
LAN Behind Server: 172.10.10.0/24
OVPN Client (Mikrotik) : 10.3.8.6
LAN Side behind MIkrotik : 172.20.20.0/24
From server side I can ping 10.3.8.6 but not the 172.20.20.0/24
It sure looks like your packets are going somewhere else than you need them to. Unfortunately I’m not familiar with pfsense, so I can’t give you any specific advice.