Networks please help setup double netwrok in win2000

Discussion in 'Hardware' started by junglemike, 7 Jun 2004.

  1. junglemike

    junglemike What's a Dremel?

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    Hi everyone.
    As you can see, i'm a complete newbie on this forum.
    Maybe anyone experienced in networking can help to answer my question.
    Ok, i live in domitories. We have 1 active internet connection. (1.5mbit). a linux pc (which works as gateway, nat ,etc) is connected directly to the internet. Than there is a hub connected to the linux, and another 7 desktop
    compueters all connected to this hub. Linux has 11.0.0.1 IP and all the 7 computers (win2000 and win XP ) have
    11.0.0.2 , 11.0.0.3, ... and so on.) Each of these 7 computers has access to the internet, and is conencted to
    loacal network,. One of these computers is in my room, it has ip 11.0.0.5. Most of the time this computer is occupied by people i live with. So i brought and old laptop (p -II - 300mhz, 128ram, win2000) with hope that i can connect it to the internet, and to local network. The desktop computer in my room (11.0.0.5) has 2 network cards, one , which is 11.0.0.5 - i checked there "enable linternet connection sharing". So windows 2000 (on dektop) automatically set the second card (that is connected to my laptop) to 192.168.0.1. After that i manually set ip on the laptop to 192.168.0.2 and also put the DNS servers of our ISP. as a result, i DO have access to the Internet, but i DO NOT

    have access to the local network (11.0.0.x) which is very important to me.
    So my question is: is there anything i can to to connect my laptop both to the Internet, and to local network?
    Thanks in advance.

    p.s. The easier solution would be to connect my laptop directly to hub - but , unfortunately , there are no free holes

    in the hub left, And also i would need additional cable going to our room (which is quite impossible)
     
  2. [cibyr]

    [cibyr] Sometimes posts here

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    You could buy/make a "micro hub" which is basically a splitter for ethernet, but hopefully one of the networking gurus will tell you there's some route command or something you can change on the desktop box that will let you access the local network.

    Can you access the local network by ip? e.g. say a computer called fred (i[ 10.0.0.3) was using windows file sharing and you wanted a file off that computer, you would type \\10.0.0.3 rather than typing \\fred or using explorer to find the computer/share.
     
  3. buzzy

    buzzy What's a Dremel?

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    Try setting the Laptop's IP address to use DHCP ("Obtain an IP address automatically") and the same for the DNS servers ("Obtain a DNS server automatically"), because this information is given out by the Internet Connection Sharing facility on your Desktop PC, and the ICS facility usually acts as a DNS "proxy" so you'd want to use that for your DNS server (at least, I'm pretty sure it does, it's been a while since I used ICS). This should get you net access, but won't allow you to share the local network (11.x.x.x) with the other PCs.


    As a better alternative, buy a new hub for your room, and connect it to the incoming cable from the original hub. Then connect your PC and laptop to the new hub in your room. This "chain" of hubs is perfectly okay from a networking perspective, and you still only need the one cable coming into your room. So currently, you have:

    PC 1 <--- Hub <---- Linux box <---- Internet
    PC 2 <---||||
    PC 3 <----|||
    PC 4 <-----||
    PC 5 <------|
    ....

    PC 1 <--- Hub <---- Linux box <---- Internet
    PC 2 <--||||
    PC 3 <---|||
    PC 4 <----||
    Hub2 <-----|
    ||
    ||---> Desktop 11.0.0.5
    |----> Laptop 11.0.0.9

    ..and this will mean that your laptop doesn't depend on the desktop being on, and can connect to all the other machines on your network. You can pick up a 5 port or 8 port hub for pretty cheap these days.

    HTH
    Buzzy
     
    Last edited: 8 Jun 2004
  4. Lynx

    Lynx What's a Dremel?

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    The reason you cannot see the network is because you are on a different subnet. Best way around this is to buy a new hub as they only cost a few pounds. (There are other ways around it but they are more hastle then they are worth)
     
  5. junglemike

    junglemike What's a Dremel?

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    Thanks everybody for your replies, i understood the matter.
    @cibyr
    can you explain how to do this, or point to some link where it is discussed/explained. I'm preety good with electronic. Many things i make or remake by myself, but, unfortunately , i don't have an experience with networking equipment. So can you tell anything more about this?
    thanks.
     
  6. Lynx

    Lynx What's a Dremel?

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    Just buy a hub. They are dirt cheap.

    You will not be able to make a hub or any form of ethernet "splitter" (they dont actually exist). the 802.3 spec is very complex and has alot of collision avoidance stuff in it which you woudl have to implement. It is not recomended
     
  7. buzzy

    buzzy What's a Dremel?

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    Agreed about buying a cheap hub.

    Ethernet splitters do exist - they allow you to use all 4 pairs of wire in a standard UTP cable, whereas a standard connection uses only 2. This means that you can run two seperate hosts on the one cable. You need a splitter at each end of the cable. They're usually used when more cable can't be added (ie it's in concrete) and it's impractical to place a hub at the end.

    802.3 doesn't use collision avoidance. It's a CSMA/CD technology, which means it uses collision detection. Token Ring uses avoidance.

    Cheers
    Buzzy
     
  8. Lynx

    Lynx What's a Dremel?

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    OK I didnt use the best terminology but I would use a splitter (I was thinking of somethign else). I wouldnt trust its signal integrity.
     
  9. diogobaeder

    diogobaeder What's a Dremel?

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    About internet, network and microhub

    Hi there, guys...

    Hey, I was using 2 computers and sharing a cable internet connection, and one of them as a server (using 2 network cards). Now, following a vendor's tip, I bought a microhub (with 2 ports) to make a direct connection simultaneously to the internet and to the local network, creating the independence between the two boxes to access the internet... is it possible to work? I mean, what about those IP questions? Which device will give me an IP address if I turn the actual server on or off? Just switching the cable to direct connection (not the crossed one, which is the actual cabling between the 2 computers) will allow me to make use of both connections?

    Thanks!!!
     
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