www.fli4l.de


fli4l_FAQ's


General questions

General questions: DSL

Functions of fli4l

Problems with fli4l (only in german)

Portforwarding

...Example file

Portforwarding FAQ


Q: What is port forwarding?
A: Port frwarding is a technique which lets a computer wait for establishing of a connection. This computer will forward this connection to other computers. See also:
http://www.tsmservices.com/masq/

Q: Why would I need port forwarding?
A: Due to the principles of NAT it is under normal circumstances not possible to establish a connection from remote to a computer which is "behind" a router. This will be enabled when port forwarding is used. 

Q: How do I use port forwarding ?
A: On one hand you will have to install the port forwarding OPT package and additionally you must include a file entry for ports/hosts into file portfw.sh . ATTENTION: You must not use the same ports for several clients! 

Q: How will I get Napster running ?
A: To do so, you will have to define port forwarding for port 6699 to the client (ex.: 192.168.0.99); see also: http://www.linuxdoc.org/HOWTO/mini/IPMasquerading+Napster-4.html

Q: I canīt receive any data in ICQ or receive any chats, etc. Whatīs that ?
A: This is depending to the principles of NAT (see above). You will have to do the following settings in the ICQ client:
preferences:connections:general: Permanent Connection,ICQ will determine IP automatically. 
preferences:connections:server: using firewall, not using proxy 
preferences:connections:user: not using proxy, use the following ports ( 5010 - 5030 )
In file/script portfw.sh parts 5010-5030 must be forwarded to the client. 

Q: When using DCC Send in IRC I get the message "unable to connect". How can I get DCC running ?
A: Load over yours base.txt (config.txt to 2.0.1):
MASQ_MODULE_X='irc'
adapts
MASQ_MODULE_N = 
and places e.g. in mirc "on connect, always get:" on local host and "lookup method " on normal
Q: I want to operate a web server behing my FLI4L router. What do I have to do ?
A: You will have to define port forwarding for TCP port 80. See: Sample script

Q: I want to operate a FTP server behind my FLI4L router. What do I have to do ?
A: You will have to define port forwarding for TCP port 21. FTP clients shall use passive mode (PASV). See: Sample script

Q: I want to play "Siedler 3", what must be done ?
A: You will have to define port forwarding. See: Sample script

Q: Which ports do I have to forward for tax program "ELSTER" ?
A: None, but: http://www.elsterformular.de/navi/FAQ/faq.htm
ElsterFormular 2000 will check before sending your data, if there are any new program versions available. It will establish a FTP connection for this update. Therefore you will have to open the default FTP port (port 21) in the firewall. You will need ports 8000 / 8001 / 8002 for sending of data. These ports must also be open. The protocol for sending the data is not able to use a proxy. Transmission of data via a proxy server is NOT possible. 

Q: I want to start "Diabolo II" as TCP/IP game and not via Bettlenet. which ports do I have to forward ? 
A: You will have to define port forwarding. See: Sample script

Q: Which ports must be forwarded for "Unreal Tournament fordwarden" ? 
A: None, UT internet games will work without port forwarding. I you want to establish an UT server you will have to define port forwarding. See: Sample script

 
Kontakt

© Copyright StPeiser