Found this on an other forum http://forums.whirlpool.net.au/forum-repli...ies.cfm?t=87904
I dont know if this will help anyone as i havn't tried it(dont have broadband), but here's what it says.
What is KaNAT?
KaNAT is a add-on tool for Kazaa (Lite). It is written for all people who use Kazaa and have a router or any other device/software that performs NAT (Network Address Translation). It will enable you to download from other people that also use a router. Kazaa isn't able to do this without KaNAT !!!
What's the problem?
Kazaa propagetes it's IP adress to other Kazaa clients and supernodes. If you use NAT it will propagte your LAN IP address instead of your WAN IP.
But LAN IP's are not routed across the internet. This is no problem if you try to download from people that have no router, but you are unable to connect to people that also use NAT. Two people can't download from each other if they both use a router!
How is it working?
KaNAT replaces the LAN IP that is propagated by Kazaa with your WAN IP. That's all.