Accessing Tunnel IP with internal LAN IP?

[theplum]

Hi all,

    I have a stupid question to ask...

    I have set up an OpenVPN server with TUN setting on my Opnsense, and one of the clients is getting a tunnel IP of 10.0.8.6 which can access my internal LAN. Is there a possible way for me to do the reverse. I.e. using a LAN IP to access the machine with IP 10.0.8.6?

    I know that using TAP will be better in this case, but I can never get it working on my Opnsense...

    Thanks a lot! 

[lfirewall1243]

Technically yes
Does a ping goes to it?

[theplum]

Technically yes
Does a ping goes to it?

Unfortunately no...

The 10.0.8.6 can ping and contact anyone in the LAN but not vice versa except the Opnsense VPN server itself...