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Multiple LANs on single network of computers?

Last response: in Networking
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October 8, 2009 2:16:51 PM

Hello, I live in an apartment complex which has a network which connects all the apartments and using this network (192.168.1.xxx), they share one internet connection to all the residents. They are all connected to each other through a network of hubs and each apartment has a CAT5 cable going to them. I think most of the hubs are at 10mbs speed

Lately the internet connection has been very unreliable (and also has some restrictions via a proxy) and some of the other residents and I were thinking of getting our own internet connection.

My question is am I able to use the existing network of hubs to share a separate internet connection on our own private lan? for example, if I purchased my own cable internet line, can i plug one cable from the router into the RJ45 port in my apartment and have those other residents connect and share that connection via a private lan like 192.168.5.xxx? The different apartments aren't too far apart, maybe 3 minute walk from each other. Also my main concern is if there are multiple LAN's running through the same wiring and hubs, will there be a performance problem or interference problem? the current network has pretty high usage, and the new one will as well. what if there was a third or fourth private LAN?

look at the photo attached for reference. The red circles are the other residents who want to share the internet with me.

Thanks a lot, and please let me know if you want clarification in anything?

October 8, 2009 6:17:21 PM

Whats happening, and from what you said, It seems like they have the 1 connection, CONa. From there, they wired everyones homes, and are distributing this throughout your apt complex..

If at times it seems unstable, its probably because you have X amount of people on a network using a bunch of hubs. Now, Im assuming that from the wall, it goes to a switch which would lessen the broadcast domain. But you will still have bandwidth issues if Joe Schoe is downloading porn.

As to your second question, is it possible to buy internet and plug it into a wall and have select neighbors use it? Well, no. Where are you located?

When you buy cable, it will most likely come in on COAX, which will plug into your router(or wireless router). I think the easiest bet for you would to get a good wireless router, some repeaters, and then set them up around you APTS. That way everyone who has the password can connect and you wont have to fuss with the cabling.
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October 8, 2009 6:23:07 PM

I think the unreliablility of the internet has to do with the current internet, not the network, because it just goes down once in a while and the way to fix it is to unplug the internet modem, and replugging it.

in terms of sharing my connection to select neighbors, I think it will work becuse i have tried it before, but my question is will it go the same speed for my neighbors as if there was no other network connected to the hubs?

setting up a wireless network in our case is impractical
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October 8, 2009 6:28:22 PM

master4g said:
I think the unreliablility of the internet has to do with the current internet, not the network, because it just goes down once in a while and the way to fix it is to unplug the internet modem, and replugging it.

in terms of sharing my connection to select neighbors, I think it will work becuse i have tried it before, but my question is will it go the same speed for my neighbors as if there was no other network connected to the hubs?

setting up a wireless network in our case is impractical



Who has access to this modem? What type of service do you have? Dial up? Cable? Wireless? Satellite?

Ok, lets say you plug you cable into the wall. Fine. But you gotta realize. If your buddy Joe Schmoe is in building A, and building A has 1 cat5e running to it, and inside the building they have a hub going to each home.. There will be issues. bandwidth, collisions, ect ect..

A hub is a layer 1 dumb device. It just relays received packets out all ports. hubs are garbage and should be replaced with switches if possible.

Wireless would be the easiest way. Plain and simple.
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