On delivery there is exactly one entry in the Firewall rule table: “WINS”. This rule prevents unwanted connection set-ups on the default route (gen. to the Internet) by the NetBIOS protocol. Windows networks send inquiries in regular intervals into the network to find out if known stations are still available. This leads in case of a time-based account of a network coupling to unwanted connection set-ups.
Note: The LANCOM can prevent this by the integrated NetBIOS proxy also
for network couplings, by pretending an answer for the concerned resource,
until a real access takes place.