Siemens gigaset SE551 Owner's Manual page 27

You will be prompted to select a connection method.
ì
Select Other Method and confirm with Next.
You will now see a screen listing various connection methods.
ì
Select This computer connects directly to the Internet. The other computers on
my network connect to the Internet through this computer and click on Next.
ì
In the next window select your network adapter and click on Next.
ì
Skip the message This network configuration is not advisable by clicking on Next.
Configuring the local network
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