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+This target allows you to statically map a whole network of addresses onto
+another network of addresses. It can only be used from rules in the
+.B nat
+\fB\-\-to\fP \fIaddress\fP[\fB/\fP\fImask\fP]
+Network address to map to. The resulting address will be constructed in the
+following way: All 'one' bits in the mask are filled in from the new `address'.
+All bits that are zero in the mask are filled in from the original address.
+IPv6 support available since Linux kernels >= 3.7.