Can multiple routers be simply on the same modem?

[melikepie]

My current internet connection goes like this:

1. From a cable line to a modem
2. From a modem to a router
3. From a router to a wireless adapter, or to one of two repeaters to a wireless adapter

But I want to run it like this:

1. From a cable line to a modem
2. From a modem to a internet cable splitter
3. From the splitter to two different modems
4. One, or both go to the repeaters (I don't think the repeaters support repeating two routers like that, maybe so) and then go to the wireless adapter, and have the other(s) go to to the wireless adapter.

Hopefully I made it clear enough. My question is, with the acknowledge that I will have the same IP, can I run it in the second listed setup? I don't want errors while hooking it up. And can someone tell me if it effects something? Thanks in advanced!

 

[smorizio]

Most cable companies are going to charge you for another cable service with two modems. If this is for a large house or wear house. Look into high power router and USB dongles. Some of the equment is use for biz and the repeaters look like smoke detectors. If this house with two or more floors if you have forced hot air look to see if you can pull some cat wires down the air return on next to it to the basement. I would try first hard wires to a switch...to the router and cable modem. If you have to use wifi look into going from the switch to a ap point.

 

[c_for]

If this house with two or more floors if you have forced hot air look to see if you can pull some cat wires down the air return on next to it to the basement.

FYI Though this is frequently done it is against building codes in most areas. Do so only under that knowledge. Also ensure you get plenum rated cables if you go through air vents. They have a thicker plastic shell and give off less toxic fumes if they heat up.

 

[melikepie]

I meant two different routers on on the same modem using a internet cable splitter, I'm I clear?

Some of the equment is use for biz and the repeaters look like smoke detectors. If this house with two or more floors if you have forced hot air look to see if you can pull some cat wires down the air return on next to it to the basement. I would try first hard wires to a switch...to the router and cable modem. If you have to use wifi look into going from the switch to a ap point.

Really?

 

[bill001g]

There is no such thing as a internet cable splitter. In any case you have the same issue. If you get 2 real ip addresses you have to pay the ISP for them. So it makes no difference if you split the coax and run multiple modems or if you connect 2 routers to the modem with a switch.

So to do what you propose you would need 1 router act as a "spliter" and share the address. Then 2 more routers to hook behind it and then whatever repeater solution you decided to use.

It depends what your goal really is. You can get routers that run separate SSID if you want to logically separate networks.

Repeaters are huge pain to get to run stable. They by themselves cut the speed by half and with all the extra radio signals you now get many more of those mysterious drops you see reported here all the time. You can run multiple repeaters since they use the SSID to determine what they repeater BUT they will still be running on the same radio channels. You now have even more interference.

You want to use any other option you have before using repeaters, you must think of them as "better than nothing" and be happy if they work at all.

 

[melikepie]

Without going into why I want another router (it has to do with router preference), my goal is to split the internet with a device such as this between two different routers creating two different networks (same internet) under different routers. So I have a network for each router and can switch between them, but not going into paying for another internet connection, rather splitting the internet after the modem.

 

[bill001g]

So you are back to using 3 routers one to just act as your splitter.

 

[melikepie]

I have 1 router, and 2 repeaters. I want to make a separate, one running off another router, the other running off the original routers and the repeaters. s.

 

[c_for]

Here is something that might help. It describes running a second router off the first router. This may be a solution for you. You want the LAN-LAN connection type. It's instructions are specific to cisco/linksys routers but the options should in the firmware of all routers should be relatively similar.

http://kb.linksys.com/Linksys/ukp.aspx?vw=1&docid=785463d9ecaf4cac84aed245b08d615f_3733.xml&pid=80&respid=0&snid=2&dispid=0&cpage=search

 

[melikepie]

I don't want the routers linked together, I just want them to share the same internet connection from the modem. Is that possible?

 

[c_for]

i'm pretty sure what I posted above will work for you. A friend of mine runs two routers at home off of the same modem. One router is setup as a USA VPN(i'm in Canada) for netflix and the other is standard. Each router has it's own network name. So he ordinarily runs off of the regular router but when he wants to stream US netflix he logs on to the router that has been setup on a VPN. Is that similar to what you want?

 

[melikepie]

Are they linked in order? I don't one a router to another router to the modem, I want two routers, connected to a modem using a splitter.

 

[c_for]

Essentially the setup I suggested uses one of the routers as a splitter. So the first router is the splitter.

 

[melikepie]

I don't want to use a router as a splitter. I want two routers, connected both directly to a splitter, connected to the modem.

 

[c_for]

I may not have explained that very well. There is no need to purchase a splitter as many routers have that function built in. So essentially the first router is the splitter.

I too have never heard of an internet splitter. Unless you are thinking of a non-wifi router.

 

[melikepie]

I don't want the settings of the first router affecting the second router at all, would it?

 

[c_for]

They don't have to. You can give the wireless networks different network names so you can select which router you are logged in to. Like I said, a friend mine has one router permanently logged into a VPN and the other one on his standard Canadian ISP. When he wants to watch the US netflix he just logs onto the router that is on the VPN.

From the page I linked: "QUICK TIP: If your routers are both wireless, you may or may not synchronize the wireless settings."