1 This target is only valid in the 2 .B nat 3 table, in the 4 .B PREROUTING 5 and 6 .B OUTPUT 7 chains, and user-defined chains which are only called from those 8 chains. It redirects the packet to the machine itself by changing the 9 destination IP to the primary address of the incoming interface 10 (locally-generated packets are mapped to the 127.0.0.1 address). 11 .TP 12 \fB\-\-to\-ports\fP \fIport\fP[\fB\-\fP\fIport\fP] 13 This specifies a destination port or range of ports to use: without 14 this, the destination port is never altered. This is only valid 15 if the rule also specifies 16 \fB\-p tcp\fP 17 or 18 \fB\-p udp\fP. 19 .TP 20 \fB\-\-random\fP 21 If option 22 \fB\-\-random\fP 23 is used then port mapping will be randomized (kernel >= 2.6.22). 24 .RS 25 .PP 26
