DNATing back to the same network

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Hi!

I have a firewall with a number of DNAT rules for various ports/hosts. It 
would be good if local users could use the same DNAT's. However, as it 
seems this doesn't work.

My firewall has a public IP. Some ports on this IP are DNATed to different 
hosts on the local network. DNAT works for users that connect from the 
internet.

However, when a local users tries to connect to the public IP and DNATed 
port, the connection fails. Which is basically logical as the server 
receives a packet with the source IP of the actual user and it answeres 
directly to that IP.

Is it possible to change netfilter behaviour? Any other work-around for 
that?

Thanks, Danilo


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