Nat – Multiple devices with one IPv6 to the Internet

I would use static routes rather than push routes in a s2s situation. Or depending on how complex the network is use OSPF to exchange routes. But to be honest I've never tried to push routes in a s2s situation. It may work just fine for simple setups.

For setting up s2s with openvpn on pfsense you need to do 2 things once you've configured the openvpn server/client.

1. You need to add s2s tunnel as an interface in Interfaces->Assign on each router.
2. By default the firewall is going to block all traffic on these interfaces so you'll need to add some allow all rules to those interfaces. You can apply rules as necessary once you have things working

I got my Problem solved, however i had to switch IPv6 for this. I used this tutorial as a help: https://blog.veloc1ty.de/2015/08/22/pfsense-ipv6-delegation-hinter-fritzbox/

Basicly i had to configure my Fritzbox to allow secondary routers and give them a Prefix < 64 Bit (I used the IA_PD and IA_NA Method).

Then i configured the Gateway like shown in the turoial with 60 bits. After that i just needed to create a Firewall Rule for Port 443.

On the Clients a added iface eth0 inet6 dhcp to the /etc/network/interface