Hello, On Fri, Sep 24, 2010 at 04:51:01PM +0100, Nobody wrote: > On Thu, 23 Sep 2010 21:41:19 +0200, Matthias > Guentert wrote: > > I would like to create an IP tunnel using the > > IP protocol type 4 (socket.IPPROTO_IPIP) on a > > Linux host. (I also would be happy if I could > > create a GRE tunnel) > > > > The thing is, I just don't understand how I > > such a socket could be created and then later > > on handled. > > You don't create sockets for IPPROTO_IPIP or > IPPROTO_GRE. Outside of the kernel, those > identifiers are only likely to be used for > specifying protocols when e.g. configuring > packet filtering. > > Tunnelling only involves user-space for > configuration.
For GRE/IPIP this is true, but with /dev/tun and /dev/tap tunnels it isn't -- userspace program actually reads from/writes to tun/tap device file descriptor. -- With best regards, xrgtn -- http://mail.python.org/mailman/listinfo/python-list
