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DNAT / SNAT Problems

zwiback
I got a Zyxel ADSL Router, that's configured as a Bridge.
I got three Network Interfaces (RED PPPoE, Green 172.23.40.1, and a DMZ 172.24.40.1).
But first I just setup the PPPoE and the green interface.
After that I configure the SNAT/DNAT Rules like this:

Out Internal_Network__ -> Any / Any Red_Interface__ None
In Any -> Red_Interface__ / Any None Internal_Network__

As soon I save the In rule the firewall doesn’t answer any Pings and I cant connect to the Web GUI.


Please Help me.  


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  • 0
    Did you create a packet filter rule allowing your dmz network to allow the incoming ports?  
    Also, do you really want to allow any ports in your SNAT/DNAT and not just it's specific uses? 
     Also for out, it looks like you're trying to do the same as straight masquerading?  
    What do your routing policies look like?

    psychorugger  
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  • 0
    Did you create a packet filter rule allowing your dmz network to allow the incoming ports?  
    Also, do you really want to allow any ports in your SNAT/DNAT and not just it's specific uses? 
     Also for out, it looks like you're trying to do the same as straight masquerading?  
    What do your routing policies look like?

    psychorugger  
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