sharing a LAN internet connection
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  1. #1
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    Question sharing a LAN internet connection

    hello members,
    i dont know much about networking but trying to learn it. right now this is my query.....
    i have a LAN internet connection and my ip address is 10.10.2.39 in the network. i have 3 computers here but the internet connection is connected to only one system. i wanted to network these 3 pcs such that i can use the same internet connection. i bought a Hub and already done the LAN for these 3 pcs. but the problem is i have been assign 10.10.2.39 ip from my ISP and the username password given to me will work only with this ip address. now i have connected this LAN (internet) cable to this HUB but i am not able to access the internet from my other PCs and it works only with that PCs which has the IP add 10.10.2.39. When i make the IP address of the other 2 PCs as 10.10.2.39 it says that there is a IP address conflict????? Does anyone have a solution to this problem. or is there any other way to do this.
    Aladdin

  2. #2
    Antionline's Security Dude instronics's Avatar
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    NAT (Network Adress Translation) is your friend

    You will need a router for this, or let one of your computers act as a router in this case.

    Cheers.
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  3. #3
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    use computer with 10.10.2.39 IP as your gateway.
    What OS are you using? If it's windows XP, just use the networking wizard on the computer that has internet access....make sure yoiu select the option that says to allow other computers to connect to the internet thru this computer.
    If you're looking for understanding.....google for "gateway" or "proxy" or "internet connection sharing"
    Have fun
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  4. #4
    Master-Jedi-Pimps0r & Moderator thehorse13's Avatar
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    As instronics has mentioned, a $60 router will do the job very nicely. Go to your local BestBuy or Comp USSR and grab a Linksys BEFSR41. The setup is easy and you'll have all 4 hosts on the internet at the same time.

    --TH13
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  5. #5
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    Just to point out not all isp's support home networking, Aol for instance will not let you setup ics.
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  6. #6
    Master-Jedi-Pimps0r & Moderator thehorse13's Avatar
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    The Linksys router will allow you to spoof your MAC address should your ISP be a bunch of cheap ****s and force MAC auth.
    Our scars have the power to remind us that our past was real. -- Hannibal Lecter.
    Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful. -- John Wooden

  7. #7
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    Where there is a will there isa way
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  8. #8
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    Originally posted here by thehorse13
    The Linksys router will allow you to spoof your MAC address should your ISP be a bunch of cheap ****s and force MAC auth.
    hum.. doing that inst a kind of hacking?....
    if ISP doesnt allow you to do home networking.... just thinking...
    Meu sítio

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  9. #9
    Senior Member nihil's Avatar
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    cacosapo,

    Not really a kind of hacking. It would be a breach of the terms and conditions of service, sort of breach of contract.

    It is a bit of greed by the ISPs, they want to try to prevent small businesses getting a private connection then setting up a network which they would charge more for if it were a business connection.

    My contract specifies a maximum of 1Gb downloads per day, so as far as I am concerned that is what I am paying for, and how I use it is up to me.

    The ISPs, however, are juggling with resources and typically share a private connection with a lot more users than a business one. Over here, that would probably be 50 customers.

    If the people on my link all set up 4 machines and all had children who come home from school and immediately went on the internet, I would be sharing with 200 people, which is a far different contention level from the one I signed up for. If they all start up Kazaa and start downloading, I would probably be better off using my 56.6 connection

    The ISP is playing a gambling game and betting that all 50 customers will NOT try to get their 1Gb at the same time, and that most (like myself) will get nowhere near it. At full belt continuous downloading I would hit my limit of 1Gb in around 5.5 hours. In this session, I have been on for an hour, and actually used 1.9Mb. So usage patterns are important, and to ISPs a home network + "kids" ="kazaa"

    The issue is basically bandwidth and how much money they can milk out of it.........the usual story?

    Just my thoughts

  10. #10
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    Originally posted here by nihil
    cacosapo,

    Not really a kind of hacking. It would be a breach of the terms and conditions of service, sort of breach of contract....

    Although Ive already did some kind of "obsfucation" to avoid ISP to "see" more than one computer sharing the adsl connection, i know that is AGAINST the conditions of service. Some ISPs here have a clause that say "...You cant use your connection for more than one computer ....."
    If you avoid detection like spoof mac address or hiding O.S. signatures you are breaking a clause so... for a general audience, you are "hacking". (just speaching as public in general)

    Ive added this comment (and the previous one) just to make newbie readers aware that some actions on adsl/cable links can be "read" by ISP as a kind of "outlaw" activity...
    Meu sítio

    FORMAT C: Yes ...Yes??? ...Nooooo!!! ^C ^C ^C ^C ^C
    If I die before I sleep, I pray the Lord my soul to encrypt.
    If I die before I wake, I pray the Lord my soul to brake.

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