Is this part of portfw? Part of the "ipmasqadm" package? Because if it is it's not really part of ipchains. I think that most newer kernels have this patch incorporated ( maybe not part of the standard 2.2.x kernel but incorporated by most distros ). I have seen it in all the distros I work with. I am sure it is in the new 2.4.x kernels. The ipmasqadm is seperate from ipchains and contains a few binaries and a kernel patch for 2.2.x kernels. If I remember correctly it was fairly simple to install and is simply called from the ipchains scripts. sim Jason Sowers wrote: > Actually, the first one is what I have been looking for. I know IP Chains > really well, I have just never had to do anything like this with it. I am > sure that I can figure it out now that I know IP Chains will do it for me.