[thelist] Configuring a IIS behind a router

Michiel Trimpe M.B.Trimpe at student.tue.nl
Sat May 18 10:36:01 CDT 2002

Hello David,

What you need is Port Mapping. What that does is that it redirects all
incoming connections on a certain port to your specific computer. In
your case the ports would probably be 80 and 21 for HTTP and FTP.
If your router doesn't support it, just get another one (i'm assuming
you have an additional computer acting as a router)
The mapping would then look like :
RoadIP:Incoming Port -> Your Local Ip:Target Port
Incoming and Target Ports will probably be the same.

   Michiel Trimpe

DB> Let me explain my situation:

DB> * We have Road Runner Cable Internet
DB> * My younger brother lives in the same room with his computer also
DB> * Because of that, we have to use a router to split the cable connection to
DB> use it on both of our computers
DB> * The router assigns us "fake" (example: 192.168.1.xxx) IP addresses to
DB> separate the computers i guess

DB> Now, our Internet access works perfectly fine, but when it comes to setting
DB> up IIS as a server, I'm not really sure what to do.  My problem (I think) is
DB> that the router is assigning me its "fake" generic IP address and because of
DB> that, people outside of the network my brother and I have set up will not be
DB> able to get to the server... it stops at the router I guess.

DB> Here are the symptoms:

DB> * I CAN access the website by typing in the fake IP address the router
DB> assigns me
DB> * I CAN access the website by going to http://localhost/
DB> * I CAN'T access the website by going to my real Road Runner IP address

DB> Has anyone run into this problem before, and do you know how I can correct
DB> this so I can serve websites?

DB> Thanks in advance,
DB> David Bindel (dbindel at austin.rr.com)

Best regards,
 Michiel                            mailto:M.B.Trimpe at student.tue.nl

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