How to give Wine / Crossover games access to LAN?

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http://askubuntu.com – I'm trying to do LAN gaming with Crossover for Linux, but my computer doesn't ever get found by other players in my network, neither does it find other players itself. (I tried with 2 games, Battle for Middle Earth 2 and Anno 1602.) Is there a general method for achieving LAN access for Wine? (HowTos)