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  • So, you want to share your internet...

    If you want to share your internet connection with your neighbors, wi-fi is the way to go. Here is what I did.

    I already had a Linksys WRT54G (v2) wireless router. The neighbor wanted a faster internet connection (he was on 56k). I told him what his options were when I was helping him with his PC when it had an issue.

    I told him that he can call Comcrap and purchase internet only from them for just a "lowly" price of $57.95 a month, or I can setup a wireless connection between our houses and he can share my internet, but of course with him splitting the monthly bill and him paying for the equipment on his end at his house. He jumped on the second option faster than Rage jumping a goat.

    He said there was about 100ft between our houses, which I doubted. I didn't measure the distance until after everything was setup. The distance is a tad over 300ft (with a tree between us mind you).

    Anyway, here is the equipment needed to do this:

    2 wireless routers (one acting as an AP, the other a Bridge).
    Free open source firmware for the routers to "beef them up".
    Outdoor wi-fi antenna, maybe 2 needed depending on your setup (db gain for what you need depends on how far/where you want the signal to go).
    Special low-loss cable (LM-400 or LM-600 generally) with connectors to connect the AP router to the antenna.
    Inline Lightning protector.

    What I used:
    Linksys WRT54G v2 (at my house, used as the AP)
    Linksys WRT54GL v1.1 (at the neighbors house, is setup as the bridge)
    DD-wrt router firmware (open source, Linksys stuff mostly runs Linux)
    12db outdoor antenna (used at my house)
    6m LM-400 low-loss cable with the correct connectors for my router/antenna combo.
    Inline Lightning protector.

    Cost breakdown:
    2 routers: $120 (approximate, I already had one)
    2.4Ghz Omni Directional antenna with Gain 12DBI: $52.50
    LP N Male TO N Female Lightning Protector: $8.99
    N male to N male(45cm) Pigtail (used to place the Lightning protector in the cable run): $9.99
    LM-400 cable - N male to TNC male RP(6m): $25.79
    DD-wrt router firmware: FREE (http://www.dd-wrt.com/phpBB2/)

    Total Cost: $217.27 (shipping was roughly $15, but I didn't add it)



    I got the antenna and accessories for it here:
    http://www.wifi-link.com/index.php

    When shopping around, I noticed most places wanted about $100-200 for the antenna I bought, so check prices if you do this.

    I wanted to cover the entire neighborhood, just in case anyone else wanted to "share" the cost & have decent internet. The antenna I used has a 1200-1400m range line-of-sight (roughly almost a mile). When I setup the neighbors new router (with the new firmware of course) he had a 50% signal from inside his house. If he had an outdoor antenna he would get 100% easily I think. The AP router at my house is pushing 100mw of power (not the factory settings ), which calculates to roughly 31db output at the Omni directional antenna mounted at my house.

    His internet is now MUCH faster than it was, and we are both happy about the low cost per month.

    The connection is encrypted for those who wonder, so only those who are authorized can connect. I can change the encryption by logging into the router and making a couple of clicks.

    Click the pictures for high res.



  • #2

    Pretty neat, thanks for the detailed info. One question though...did you notice any significant difference in your connection online?

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    • #3

      I have noticed no difference. I can throttle the bandwidth of others as well by using the software I installed in the main router (AP). On a side note, my machine is connected direct to the router via Cat5.

      Comment

      • #4

        nice job raker! Mighty nice of you to get an omni directional antenna too. If your neighbors decide to get outdoor antennas tell them to get directional cantennas to point at your omni. You know what i mean right they look like telescopes or speed guns. They decrease the angle of reception down to like 35 degrees to increase range.

        You can even build them out of pringles cans if you get the equation right, or any can for that matter. I've even seen stuff on the net about cantenna shoot outs to see who can get signal from a to b the fastest lol.
        Mind as muscle, Body as energy, Spirit as thought.
        sigpic

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        • #5

          i can pick up my neighbor's signals pretty well the way it is with just my laptop/wireless NICs. Trying to understand the need for the extra equipment..I guess it just makes his signal more equal to yours?

          Comment

          • #6

            I have a couple of waveguide antennas (like a YAGI in a can) sitting on a shelf unused. I used the omni on purpose to cover my whole neighborhood, just in case someone else wanted in on some cheap access.

            The exterior antenna is needed for superior signal quality. Most houses here are heavily block/brick based, and the signal is degraded quite a bit passing through a few brick walls. The maximum distance I needed to cover is roughly 1800ft. The 12db antenna, along with the upgraded router, can give a nice signal at that range even with a few trees in the way. The true range of the current setup is ~1500m line of site, which is about 1 mile.

            My house sits on the upper edge of a large depression, so only those houses in that depression (about a dozen) will actually be able to receive a signal from my house.

            The neighbor who is currently sharing access & the bill receives the signal with no external antenna at his house, but his router was also upgraded with the OS firmware, which allows me to increase his in/out signal.

            Quality of the signal is very important. Just because you can detect a neighbors signal, does not always mean that it is usable, which is most common.

            Comment

            • #7

              i like the cantennas cuz its basically a spotlight. focus right in on the signal source. mmm... signal yummy signal. cantennas and airsnort, tasty.
              Mind as muscle, Body as energy, Spirit as thought.
              sigpic

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              • #8

                My D-Link 4300 works at both our homes.Mine and Teresa's desk tops are wired direct,Brook's is wireless at the other house using my connection.Her machine picks up a better connection a house away,we have dsl up there as well where Brandon and Bay's machine can pick up either connection.Sounds weird I know but we are remodeling to make room for all of us in the same house.Teresa's mom already had dsl there,thats why the 2 seperate connections.Too lazy I guess to make the call to turn 1 or the other off. lol
                sigpic

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                • #9

                  Linux firmware?

                  Anybody know where i can get better firmware for a D-Link DI-604?
                  Mind as muscle, Body as energy, Spirit as thought.
                  sigpic

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                  • #10

                    This is what I found.

                    http://www.antifart.com/2006/09/02/d...are-rev-e.html
                    sigpic

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                    • #11

                      Linksys routers ftw...

                      Most of them, but not all, run linux and can be modded, unlike other brands.

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                      • #12

                        thats what i fig'd... sheety dlink.
                        Mind as muscle, Body as energy, Spirit as thought.
                        sigpic

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                        • #13

                          Whats the deal?

                          Hey Raker,
                          I just got my hands on a Linksys WRT54G v.6 router. So really, whats the skinny on this firmware? Is it legit or what? Easy to install/use? Good functionality? More GUI or command line based? I went to that link you posted and read the tutorial, just wanted to get a little more info out of you before actually flashing the ROM.

                          On a scale of 10 whatcha think?
                          Mind as muscle, Body as energy, Spirit as thought.
                          sigpic

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                          • #14

                            It will work on that version, but you will be running the "mini" version of the firmware which is more limited than what I run (but still better than what Linksys uses). The v6 is not running nix and has 1/4 the memory. You should have got the GL version of that router which has much more memory. It is legal/legit to convert it, and you can revert it back to the original firmware if you want. All the dd-wrt stuff is open source.

                            Check their forums and wiki for more details.
                            http://www.dd-wrt.com/phpBB2/

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                            • #15

                              time to knock the dust of this post lol. just got my hands on an old wrt54g router, put the dd-wrt firmware on it. Awesome software. What would we do without your wonderfully informative posts raker?

                              So uh.. what can i do with it lol.
                              Mind as muscle, Body as energy, Spirit as thought.
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