TCPListener both ipv4 and ipv6

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Hi,

I'm trying to create a Tcp Socket that supports listening to an IPv4 as an IPv6 adress. I am using the following code.

C#

_listener = new TcpListener(IPAddress.Any, port);
_listener.AllowNatTraversal(true);                      
_listener.Start();

When I execute this code on a Windows Server 2003 SP2 this results in an SocketException with the following exception message: "An unknown, invalid, or unsupported option or level was specified in a getsockopt or setsockopt call"

does anyone can explain what is going on?

Posted 17-Jun-11 3:53am

Wannes Geysen

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Dave Kreskowiak · Answer 1 · 2011-06-17T07:09:00

Solution 1

I haven't tried any IPv6 stuff yet, bu I believe you may have to start a second listener if you want to support both IPv4 and IPv6. IPAddress.Any is specific to IPv4. The IPv6 equivilent is IPAddress.IPv6Any.

Posted 17-Jun-11 7:09am

Dave Kreskowiak