Ahrenholz, Jeffrey M wrote:
Will netgraph let you create a gif or other tunneling
socket and plug
it in directly to the graph? Would the alternative be piping a
userland tunneling socket and ng_socket?
there is an ng_gif node but I've never used it.
look in /usr/src/sys/netgraph to see what exists. They are
supposed to all have man pages.
I like mpd for tunneling..
it is a higher level user of netgraph.
Another good one is ng_ksocket(4), which you can use to directly connect the
netgraph systems of two different kernels across the network. It behaves like a
bare-bones tunnel where the netgraph data is sent directly over UDP or TCP.
-Jeff
in fact mpd knows how to use ksockets to do just that when it usws tcp
or udp as a transport mechanism for it's ppp stream.
I have also used ksockets directly and used ipsec to encrypt the outer
layer..
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