L2TP/IPsec - site to site tunnels
i have set up L2TP/IPsec server on my pfsense (building a) and L2TP/IPsec client on my draytek router (building b)
in building b on a computer i can ping a host in building a but i cant ping a host from building a to b
can it even work the other way as i want the 2 buildings to talk to eachother not just one way communication?
That's probably not what you want for a site to site connection. There are a variety of potential routing complications. The Draytek should support a proper site to site IPsec connection without L2TP's inherent complications, use that instead.