Dear All, Okay, I have managed to fix the problem in a "no-brain" way. The problem had probably) occurred because I installed the new version of iptab(les from the source package, and I (stupidly) had it installed at the same time as the old iptables package . I got rid of all the iptables installs (and ipchains and auto-installed firewalls) I could find on my disk, and reinstalled iptables 1.2.8-8 from an rpm. Now everything seems to work ! Phew, I am saved from kernel compiling once again... Thanks for everybodies' input steve On Mon, 2003-11-10 at 20:04, David C. Hart wrote: > On Mon, 2003-11-10 at 12:50, Steve wrote: > > I'd like to preface this mail by saying that if a little knowledge is a > > dangerous thing, then I am very dangerous.... > > > > I have recently installed redhat 9.0 over the top of RH V7.3 and then I > > upgraded to iptables 1.2.7a with a 2.4.20-18.9 kernel using apt-get. > > When I try to do anything with iptables, I get the following error:- > > > Presumably that's a stock RH kernel. For starters, 2.4.22 is completely > stable and offers a noticeable improvement in throughput. You might want > to custom compile and install it yourself. > > --------- > Quality Management - A Commitment to Excellence