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internet sharing help!!!

C

czhang

Member
I got Verizon's DSL service just recently, and I set up a computer to be a server. That computer has two NICs, one connects directly to the DSL modem, and the other one connects to the hub. me and my roomies' 2 other computers are then connected to the hub. We didn't use any other software to configure the proxy settings on the server. We have a dynamic IP. Our network was working for a while, but we would loose connection about every 3 days. We will have to restart the server for the connection to come back up. I'm wondering if that could be due to the fact that we have a dynamic IP. Also we can send files via icq and AIM to eachother, but cannot send files to anyone outside of our network. Could that be due to the fact that we didn't configure our proxy settings on the server? just yesterday, our network refuses to work. I connected my computer directly to the dsl modem and it connects, so that means nothing is wrong with our DSL line. Now i have no idea how to fix the server. Maybe i am just setting up our server completely wrong and I need some help on how exactly do u setup this server, and with what software(preferably free). The server was running on 98se, my roomies have either WinME or Win2000. Is there a possiblity of incompatible operating system? I am really new to networking, and i've been setting up things just according to what my friends have been telling me. Obviously its not really working. I want to avoid buying a router because my roomies don't really want to chip in for one and I just really hope this server setup will eventually work.

thanks,
czhang
 
Sounds like you've been doing pretty well, actually. For help on setting up ICS go to http://www.infinisource.com/techfiles/ics.html - the file transfer problem with ICQ, etc. is not your fault, but is characteristic of computers running behind an NAT or proxy server. Having to reboot your server every few days, to keep things running, would be quite normal for a computer running win9x - probably running into low resource stacks, memory leakage, etc. - best to shut it down and reboot at least once a day.
 
I wanted to do a similar thing as czhang, but I only have Win95 on the computer I wanted the connections to go through. Is it still possible to network everything, or do I need Win98, WinMe, or WinNT?
 
Thanks lots Obenton...I read the site and will be doing some troubleshooting tonight when i get back from work. As for sending files through ICQ, is there anyway I can get that working?
Since you mentioned that the need to reboot the computer is due to the fact that I'm using 9x based OS, what if I'm using 2000? Will it change anything?
 
czhang:

If the reason you need to reboot every couple of days is really due to win9x, then yes, switching to win2k would be a lot better (provided you have to hardware to support it)... You probably wouldn't need to reboot in weeks or months!

RockyMaivia:

Windows ICS only comes with win98SE or later versions of windows... if you want to use win95, you will have to get some 3rd party NAT software like Sygate to setup your server...
 
As above. The reason that file transfers might not work from client computers is that the ICQ (or IRC, etc.) program sends info to the distant computer telling it what port to connect to in order to effect the file transfer. The NAT or proxy server or hardware router you're using has no way of knowing what's going on here, so when it receives a packet addressed to this particular port it doesn't know what to do with it (what LAN computer to send it to) - so the packet simply dies, and the file transfer never takes place. In some situations there are workarounds, but that's another and more complicated story.
 
You can forward ports needed to run ICQ to each client then have each client use those ports in the connection settings. For the first client say IP 192.168.0.2 forward ports 20000 - 20019 to it. For the second client, sy 192.168.0.3, forward the next 20 ports, 20020 - 20039 and so on.
 
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