libxt_TPROXY.man revision 18c475d7040abc6d3094ee0348904deafe997508 
1This target is only valid in the \fBmangle\fR table, in the \fBPREROUTING\fR
2chain and user-defined chains which are only called from this chain. It
3redirects the packet to a local socket without changing the packet header in
4any way. It can also change the mark value which can then be used in advanced
5routing rules.
6It takes three options:
7.TP
8\fB\-\-on\-port\fP \fIport\fP
9This specifies a destination port to use. It is a required option, 0 means the
10new destination port is the same as the original. This is only valid if the
11rule also specifies \fB\-p tcp\fP or \fB\-p udp\fP.
12.TP
13\fB\-\-on\-ip\fP \fIaddress\fP
14This specifies a destination address to use. By default the address is the IP
15address of the incoming interface. This is only valid if the rule also
16specifies \fB\-p tcp\fP or \fB\-p udp\fP.
17.TP
18\fB\-\-tproxy\-mark\fP \fIvalue\fP[\fB/\fP\fImask\fP]
19Marks packets with the given value/mask. The fwmark value set here can be used
20by advanced routing. (Required for transparent proxying to work: otherwise
21these packets will get forwarded, which is probably not what you want.)
22