internalaccess to internal webserver via gateway hostname

hiall,

sound s abi odd eh ?

Well ive got my firewall set up to allow port redirection of port 80, to
an internal webserver, works fine if your on the outside of the
firewall, but i want to take the url you would see from outside, and use
it on the inside. i.e. my webserver is at 192.168.0.30 (internal net)
but want to got through my.website.net to have a look.

The connection gets refused ???, in the log is

pre routing pckt dropped IN=eth0 OUT= MAC=<xxxx> SRC=192.168.0.40
DST=<yyyy> LEN=48 TOS=0x00 PREC=0x00 TTL=128 ID=35751 DF PROTO=TCP
SPT=1997 DPT=80 WINDOW=64240 RES=0x00 SYN URGP=0

anyonw got any ideas ?/?

cheer all

dave