Fabricio, good day! > I'm developing a network application which needs *to intercept* a packet > (not just *copy* a packet, like libpcap does), move this packet into my > application (userland), do some checking in the packet and according > with some heuristics, the application may change the payload and > re-inject the modified packet into the network. Note that sometimes, > I'll change the payload, drop the packet or just let it go. > > So, how can a I do that in FreeBSD? I can use 6.1, 7.1, any version.
Probably you should read the divert(4) manual page and the ipfw(8) manual, looking for the 'divert' directive. The good example of your application is /sbin/natd. The aforementioned facilities are present in FreeBSD at least since 4.x. -- Eygene _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
