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 localhost address, 11 127.0.0.1 for IPv4 and ::1 for IPv6). 12 .TP 13 \fB\-\-to\-ports\fP \fIport\fP[\fB\-\fP\fIport\fP] 14 This specifies a destination port or range of ports to use: without 15 this, the destination port is never altered. This is only valid 16 if the rule also specifies one of the following protocols: 17 \fBtcp\fP, \fBudp\fP, \fBdccp\fP or \fBsctp\fP. 18 .TP 19 \fB\-\-random\fP 20 If option 21 \fB\-\-random\fP 22 is used then port mapping will be randomized (kernel >= 2.6.22). 23 .TP 24 IPv6 support available starting Linux kernels >= 3.7. 25
