Support for Linux ethernet and IP tunnel devices.
| See Also | https://en.wikipedia.org/wiki/TUN/TAP | |
| Class | TunnelFlags | TunnelFlagsdefines more flags which are used to configure the behavior of a tunnel 
device. | 
| Class | TunnelAddress | A TunnelAddressrepresents the tunnel to which aTuntapPortis 
bound. | 
| Class | TuntapPort | A Port that reads and writes packets from/to a TUN/TAP-device. | 
| Class | _TunnelDescription | Describe an existing tunnel. | 
| Interface | _IInputOutputSystem | An interface for performing some basic kinds of I/O (particularly that 
I/O which might be useful for twisted.pair.tuntap-using 
code). | 
| Class | _RealSystem | An interface to the parts of the operating system which TuntapPortrelies on.  This is most of an implementation of_IInputOutputSystem. |