netfilter announce - Nov 2002 - Internet Server into network error

I create 2 domains:
work.com             and      my.work.com
    |                              |         
station.work.com            station.my.work.com
                                   |
                            http_server.work.com
The problen is: I create the rulles 

iptables -t nat -A PREROUTING -d 200.200.200.200 -p tcp -m 
tcp --dport 80 -j DNAT --to-destination 10.0.0.10:8080

iptables -t nat -A POSTROUTING -o eth0 -p tcp -j SNAT --to-
source 200.200.200.200

out from lan I write http_server.work.com and the server 
work, but if i write it from my lan o server is not found.

thanks.

 

 
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