Default Firewall on armbian??

[trohn_javolta]

I'm pretty sure I'm wrong here with my issue but since I'm out of ideas I gotta ask here just to make sure.

 

I've successfully set up a vpn server on linksys router running dd-wrt. Connecting from outside I can reach all local IP's despite of my hummingboard running armbian.

I didn't add or change any firewall settings.

What I also tried is to give it a static Ip adress by editing /etc/network/interfaces and adding/uncommenting this:

iface eth0 inet static
address 192.168.1.57
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1 

and also /etc/resolv.conf

nameserver 192.168.1.1 

..with no success.

So my question is if there's some kind of defaul firewall running on armbian that is to blame?