A new feature in UTM v9 allows you to create 1:1 NAT rules. 1:1 NAT allows the UTM to forward traffic destined for any host on a particular network to a corresponding host on a different network. Please follow the steps below to create such a rule.
Sophos UTM v9
The subnet mask of the networks "For traffic from" and "Map to" must be the same. For example, it is not possible to map a /16 mask network to a /24 mask network. Also, you must add an entire network into the 'For traffic from' field, when you want to map the source, or into the field 'Going to' when you want to map the destination.
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