Sharing Internet With A DSL Modem!?

Question

I have a LAN internet modem which has multiples output at the back of the modem (line1, line2, line3, & line4). Whenever I tried to share the internet with two cables plugged at line 1 and line 3 (for example) it wont allow this to happen. It only allows one computer to have the internet connection but the other's don't. What must I do so that I can my internet through 2 LAN cables connected through this modem??

I have tried using the gateway but still it wont work

Answer 1

Well, basically your setting up a small home network just allowing access sharing for your internet connection. There are actually several things which you'll need to find out. You'll also need to verify that the connection you have is allowed to be shared.

First verify that the network itself is operational and each machine will talk to each other. Find out what your IP scheme is and how the numbers are assigned. If you've assigned an IP, you'll need to make sure this allows communication to the gateway and out to the DNS. If your running XP, run a command/dos box and type "ipconfig /all" this will list your IP address, your gateway and show you what your DNS numbers are. Try pinging ( Ping ***.***.***.*** ) the gateway first, if you get a reply back, then try the DNS numbers. You can also ping the IP address of the other machines to verify you have connectivity across the network. Now, most routers are designed for multiple machines and they like to handle all the IP address themselves by a process known as DHCP. You can generate problems if the router is handing out addresses and you've assigned specific numbers to a machine. Also, I'm assuming that you know that the IP numbers themselves are uniqe, if you assign the same IP either from another machine, external IP or gateway, you will create a conflict. Even though your primary goal is to share the internet, it is no different than sharing files or a printer. If your network isn't working then moving onto sharing the internet won't help any. Even with the internet not shared properly you should be able to ping the internal gateway of the box that is handling your internet connection.

Ok, assuming you've made it this far and you have machines that will talk to each let's look at your connection. You didn't say what type of connection you have and how it is created. Sometimes companies like Earthlink and Bellsouth give you a PPP connection and their software works like a dial-up connection. If you have to create a connection from a machine each time, then that is what you have. No worries, but I always found it much more difficult to share this type of connection from a central machine unless it is a server. ( It can be done, but you'll have to share the connection from the machine itself and point all other machines to use it as the gateway. ) Generally, the modem itself will take the place of this software connection. So, check your modem and verify that it will allow the setup of PPP and let the modem/router do all the work for you. If you attempt to create the connection from each machine with the dial-in type connection it will only allow one machine at a time to be the primary connection. It really is easiest to let the router be the primary link and just share the connection to the other machines. If your modem isn't a router ( although I suspect it is ) you may want to consider stepping up to a better piece of hardware that supports configuration of the type of connection you have and also has DHCP. If your really trying to keep costs down you can manually assign IPs, just try to keep notes and label everything. Pain to have to try to remember later what numbers you put where if you add new hardware.

Hope this helps.

Answer 2

If You have a laptop be sure to share your internet connection when when you leech off of the Free WI-FI the DSL box emits. Laptops were always easier for me to share an internet connection. you need a wireless network adapter with the proper drivers installed so your laptop can pick up nearby wi-fi. the only thing i can think of is getting long phone cord and use the DSL/Phone Splitter and connect the phone cord to the extra computers so you can atleast get dial up. true hackers can mess with dial up and boost the connection but thats beyond my knowledge. you can use those AOL Cds and use the trials Just be sure to Cancel them one week before the month ends otherwise youll get alot of unwanted accounts charged.

Answer 3

Yeah, you could get a router or a simple four port switch. Or, could use wireless adapters and connect via modem without the need for a router or switch at all.

Answer 4

Most likely scenario is that you will require a router to be installed after the modem. This will help assign dynamic or static ip to your computers. This method will work fine.

Answer 5

if it is A DSL modem it is as good as a router which work at layer3 of the protocol. it will support more than one computer. you will need to configure the systems connected modem for default gate way.

Answer 6

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