英文文檔：

FPipe v2.1 - TCP/UDP port redirector.
Copyright 2000 (c) by Foundstone, Inc.
http://www.foundstone.com

FPipe [-hvu?] [-lrs <port>] [-i IP] IP

 -?/-h - shows this help text
 -c    - maximum allowed simultaneous TCP connections. Default is 32
 -i    - listening interface IP address
 
 
-l    - listening port number
 -r    - remote port number
 -s    - outbound source port number
 -u    - UDP mode
 -v    - verbose mode

Example:
fpipe -l 53 -s 53 -r 80 192.168.1.101

This would set the program to listen for connections on port 53 and
when a local connection is detected a further connection will be
made to port 
 
80 of the remote machine at 192.168.1.101 with the
source port for that outbound connection being set to 53 also.
Data sent to and from the connected machines will be passed through.

　　fpipe -l 1430 -s 1431 -r 1433 192.168.0.4

　　這句命令的意思是： 所有連接到本地1430端口的信息， 通過本地的1431端口， 轉發到IP為192.168.0.4的1433端口

　　使用這個命令可以實現：某些不允許遠程連接的端口， 使用fpipe把本地不存在限制的端口重定向

作者： NONO
出處：http://www.cnblogs.com/diligenceday/
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FPipe， CMD命令行下的端口重定向工具