uhhhhm - I already read that overview. But the thing is - it's dedicated to workstation. vSphere imho does not support nat- or bridged networking simply by enabling a setting in the configuration console.
Unfortunatly PfSense obviously needs 2 network cards in my esx-host and is intended to route between those networks.
But in my case I only have one "physical" network - the other network is virtually created with windows server dhcp.
Sorry for that, but I don't have a glue how to realise it 