How to sniff local outgoing network traffic in .NET without using PCap?

c# .net networking sniffing
Hendrik Wiese picture Hendrik Wiese · Jun 1, 2010 · Viewed 20.9k times · Source

I'd like to somehow hook into the local system's network stack to capture outgoing network packets without using Winpcap. Unfortunately it tends to crash my system every now and then.

Is there a way to "sniff" outgoing traffic of the local system from a user space process written in a .NET language?

Answer

Mike Atlas picture Mike Atlas · Jun 1, 2010

What you want is the Network Monitor API. More here and here.

Related questions

An existing connection was forcibly closed by the remote host

I am working with a commercial application which is throwing a SocketException with the message, An existing connection was forcibly closed by the remote host This happens with a socket connection between client and server. The connection is alive and …

Read More
How to provide user name and password when connecting to a network share

When connecting to a network share for which the current user (in my case, a network enabled service user) has no rights, name and password have to be provided. I know how to do this with Win32 functions (the WNet* …

Read More
A call to SSPI failed, see inner exception - The Local Security Authority cannot be contacted

I have an WPF app, which uses SSLStream to connect to server and send/receive some messages. My code is largerly based on this example (SslTcpClient): https://msdn.microsoft.com/en-us/library/system.net.security.sslstream(v=vs.110).aspx. This …

Read More