Short answer: You cannot.
Long answer: If you use VPN on the L2 level and you create a bridge, then it should work just like you would be on your home network.
Using L2 level network causes overhear and it's usually not what you want. (Usually one of the things not wanted is broadcast and multicast traffic when using VPN and that's the reason why on your common L3 level VPN you cannot use "bounjour/avahi/netbios" to locate your services) This means that you are assing an ip from you home network just as you'd be home.
See these links for more info: Similar question, VPN links and bonjour, Workaround