and
.B OUTPUT
chains, and user-defined chains which are only called from those
-chains. It alters the destination IP address to send the packet to
-the machine itself (locally-generated packets are mapped to the
-127.0.0.1 address). It takes one option:
+chains. It redirects the packet to the machine itself by changing the
+destination IP to the primary address of the incoming interface
+(locally-generated packets are mapped to the 127.0.0.1 address). It
+takes one option:
.TP
.BR "--to-ports " "\fIport\fP[-\fIport\fP]"
This specifies a destination port or range of ports to use: without