InternetSharing/public ip addresses/Airport

I want to forward public IP addresses to clients connected to my WLAN. How do I do this when using the built in internet sharing in Mac OS X 10.3 client? The clients are connected to the computer that shares its internet connection via WLAN. I have realized that when I start internet sharing three processes are started: natd -alias_address 123.45.67.89 -interface en0 -use_sockets -same_ports -unregistered_only -dynamic -clamp_mss bootpd -P named -c /etc/com.apple.named.conf.proxy -f I thought that restarting natd with one more argument would help: -proxy_only Force natd to perform transparent proxying only. Normal address translation is not performed. but it did not work. After a closer look at the man pages for natd, named and bootpd I have started to suspect that I need to do something with bootpd but I couldn't find anything in the man-page for it that indicated how make it act like a 'transparent proxy'. Searching here or on Google didn't return anything useful. Any suggestions? Thanks Keywords: natd named bootpd InternetSharing