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Harald Welte laforge at gnumonks.orgHi Manuel, On Tue, Mar 22, 2016 at 02:18:48AM +0100, Manuel José Muñoz Calero wrote: > Well, the idea was to use libipsec to integrate IPSec functionality into > OpenGGSN code, so OpenGGSN itself could set IPSec parameters and start > connection. I don't think this is a good idea at all, sorry. IPsec is a feature provided by the operating system, and it is very well (and efficiently) handled by doing all the per-packet operations inside the kernel itself. Only the control (key handshake) is done in userspace, and three are several implementations of the IKEv1/IKEv2 protocols out there. There's no need to replicat that functionality in OpenGGSN. > What about writting a GTP traffic open source analyzer? > I started writting it a couple of years ago. > I used tcpdump output and parsed it with awk and got statistics about many > things (especially errors, packets per protocols counting...). > It could be written in C this time. I suggest you to have a look at the wireshark infastructure in the 'Statistics' / 'Telephony' menus. They do pretty nice for other protocols like TCP or SIP. -- - Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)