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How to Share DSL modem.

Posted on 2000-03-16
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Last Modified: 2013-12-28
What is the simplest way for two PC's to share a DSL modem?
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Question by:rhf2
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by:mikegodwin
ID: 2626552
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mmedwid earned 75 total points
ID: 2626763
The simplest way is to purchase an inexpensive 10 base T hub from a local computer store and connect the two computers and the DSL modem to the hub.  Note that you will likely need to run a cross-over cable between the DSL modem and the hub unless the hub has an "uplink" port.  You will also need to check with your ISP that they will allow you to have two IP addresses - one for each PC.  There are many variables here such as whether your DSL "modem" is actually a bridge or a router or if in fact it acts like a modem in that it connects to your serial port (they used to call ISDN adapters that connected to PC serial ports ISDN "modems" - a misnomer in either case.)  

Bottom line: call your ISP and ask them if you can have two computers on your DSL modem and that they've assigned you one IP address for each computer.  Inquire if there will be any further configuration required on your DSL modem in order to attach it and two computers to a hub.  In some cases no configuration could be necessary for instance if the DSL modem has a form of DHCP on it for automatically handing out addresses.  Or if the DSL modem is set up as a bridge the ISP might just hand out IP addresses from a DHCP server at their side of the network connection.  Lastly go buy the hub ($30-40) and another network cable or two plug it in and fire it all up.  Happy surfing!
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Expert Comment

by:FatherTime
ID: 2630021
another way is if you are running windows98 se the install internet connection sharing that way you can use only one ip address. because you will pay a additional charge for 2 ip addresses. you still need to buy a hub. i have 3 computers connected to a single cable modem sharing 1 ip address using ics.
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by:mmedwid
ID: 2630099
Is internet connection sharing included with basic win98 or is that in a service pack or something?  Interesting.  Thanks.
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by:FatherTime
ID: 2630125
it is included with windows98se.
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Expert Comment

by:mmedwid
ID: 2630137
In many cases out here in the SF bay area DSL accounts come with three to five usable IP addresses.  So as you state - the least cost/best solution depends on what you get in your deal.
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by:FatherTime
ID: 2630163
yes i guess so. if your connection is setup to obtain a ip address automatically then it might take 2 or 3 connects till you get a good adress unless you have a hub where it is on all the time and keeps the ip address until you release/renew it thru winipcfg.
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by:rhf2
ID: 2631157
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