Use the SL as EIBnet

[khalil]

Thanks and appreciate your help.
If you could reference a document for more details I will be thankful.
BR,

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I use the SL as TP-UART.
but when I try to connect ETS to SL locally I cant connect unless enabling NAT, and when I try to download devises application I got this message: 

The bus connection KnxIpTunneling : ***Project_Name*** - no nat - 192.168.10.10:3671 of the line 1.1 Line-1 could not be established.
The interface is not reachable.

While I can bing to line 1.1 IP Router from SL.
any idea?
Edit: Its IT issue 

BR,