DNAT to localhost not supported?

view full story

http://forums.fedoraforum.org – I'm having problems with NX, it's doing strange things, trying to connect to some IP host in timbuktoo because my DNS provider's DNS sucks AND because NX is looking up the host "localhost" without first consulting my hosts file (which nsswitch explicitly tells it to do). THAT's all beside the point. To work around this apparent bug in NX I tried creating an iptables rule to redirect traffic destin for a certain IP (10.x.x.x) to localhost ( with the following rule: iptables -t nat -I PREROUTING -d 10.x.x.x -j DNAT --to After adding the above rule, my attempts to connect to that host continued to get routed right off into the internet where I DIDN't want them to go. Instead of being redirected to the localhost/loopback address. It seems DNAT to localhost is not supported? A Google search reveals many other people having this issue but blaming it on everything but iptables. I'm proposing that it's not supported, by design or not, to redirect traffic from a NIC to the loopback network? Can anybody confirm or shoot down this theory of mine? Thanks :) (HowTos)