[lwip-users] Re: [lwip] tun/tap

[Adam Dunkels]

On Friday 22 March 2002 10.24, you wrote:
> Can any body give some brief introduction about  tun/tap driver in layman
> words?

The tun and tap drivers are abstract network interfaces. They appear to be 
network hardware such as an Ethernet card, but in reality they just exist in 
the kernel. Packets sent to the tun or tap interfaces are not sent out over a 
physical network. Instead, they packets end up in a special file, /dev/tun0 
or /dev/tap0. Data that is written to the same files will appear as network 
packets from actual network hardware.

Also, check this message out: 
http://www.sics.se/~adam/lwip/maillist/msg00091.html

/adam
-- 
Adam Dunkels <address@hidden>
http://www.sics.se/~adam
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