I have been using ipchains for quite some time now and I am in the process of migrating to IPtables. But I still have one big dilemma. Why do I have to install special kernel modules to use special protocols like FTP,H323 etc What is the real issue about these protocols. Why can't NAT handle these protocols. I mean I tried NAT on a Cisco router and no probs everthing works.
I ask this question given the fact that many of my friends simply use a wingate machine as gateway and never encounter these problems. Everything works fine immediately. Not like me unfortunately I'm still messing around trying to find why MSN messenger file transfers do not work. I heard there is a new kernel module to compile. The even bigger problem right now is that many of these kernel modules have not as yet been ported to kernel 2.4 which makes my firewall installation pretty useless. Can anyone help put some light regarding this issue ? Thanks Keep up the good work Stefan
