Inaccessible web server behind router inspite of port forwarding

From: Swaroop Kumar (jamdagni_at_yahoo.com)
Date: 12/22/03 

Date: 22 Dec 2003 06:48:36 -0800

Hi:

    I desperately need help with this problem. I have a Netgear MR814
Wireless Router connected to the internet via a cable modem. I have
three PCs connected to the router, two of them wirelessly and the
third by ethernet cable. All three PCs on the internal network are
assigned DHCP addresses 192.168.0.2 thru' 192.168.0.4 by the router.
The router reserves addresses based on the MAC address, so that the IP
addresses assigned to the three PCs are essentially constant. The PC
connected physically to the router (via ethernet cable) is assigned IP
address 192.168.0.2.

    I am trying to host a web server on the PC with IP address
192.168.0.2. I set up port forwarding on the router so that port 80 is
forwarded to 192.168.0.2. I then set up an alias in dnsalias.org so
that hostname resolution is done. However, I was unable to access the
web server using the hostname or IP address. I read in one of the
newsgroups that my ISP (Comcast) may be blocking some of the more
well-known ports to force us to comply with their rules. So, I
configured Apache (running on 192.168.0.2) to listen on 8084 and,
later, 8085. No dice. I still can't seem to reach the web server by IP
address or hostname. Next, I wrote my own little server and client
programs in Java and ran the server on 192.168.0.2 while I tried
running the client; first from 192.168.0.2 itself and later, from my
PC at work. Still no luck. I can't seem to get the router to log more
information so that I can check if its at least getting the request
from the browser and throwing it away instead of forwarding it on to
192.168.0.2. So, I have no idea how to debug this. I would really,
really welcome any suggestions/advice/tips/hints.

Thanks in advance,
Swaroop

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