You are probably refering to my guide:
http://pandoraonline.net/forum/showthrea...&tid=12183
The "fake" ip has stopped changing for me on reboot, its been quite a while since it stopped doing that. Not sure why, but if its the same for you, you only have to get it once and then you can just run the same iptables command after each reboot and won't have to bother getting the new "fake" ip every time. Leave sclientinfo.xml alone, use the default one that comes in the heRO grf.
I'm still running heRO from linux btw, and it still works fine. So don't give up, its possible to get it to work. I'm gonna send you a PM with some info that might help you further.
My chars: TPC / Tjuven / Dansare / Sinne / Magiker / Byracka / Krigare / Andreas