Problem with dnatted adddress

Hello guys.

We have a new network for guests and we have a DMZ with some sites and mail server. Obv, we have some VIPs configured that map external address to internal address on DMZ.

 Our problem now is that from guest network (port 15) we can't access the DMZ network (port 4), always block with policy 0.

I think is a problem with DNAT, maybe the "external interface" on DNAT configuration....

Someone have an idea to resolve this?

Sry about my bad english...

Tks.

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