Author Topic: How to Daisy Chain a Router to Another Router?  (Read 10149 times)

The Gorn

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How to Daisy Chain a Router to Another Router?
« on: September 05, 2013, 01:23:28 PM »
I bought a cheap ($15) wireless router on Woot that just arrived. A Dlink 605L.

I currently have a router (Dlink-655) that serves most of the house with wifi and wired internet, located in the basement, connected (hardwired) to a Time Warner cable modem. Currently everything in the house connected to the inet through that router. Call this the "main" router.

What I *want* to do is connect the new router to an ethernet port from the "main" router. So far, I have configured the WPA password on the new router; the "main" router sees the 605L in its DHCP assignment list; but the new router reports that internet is not configured.

The ethernet port is known to work for laptops, my PC, etc. The cable I am using between the new router and the ethernet port is a straight through, not crossover cable, that is connected to the WAN port on the new router.

I *believe* that the signal crossover state of the new router to the main router is OK electrically (IE, it's not the cable) owing to the fact that the main router sees a new device called DIR 605L in its IP device list.

The gateway address of the main router is 192.168.0.1. I set the gateway address of the new router to 192.168.1.1 to get it out of the way of the address space of the main router.

My objective with this setup is to have a second wifi hot spot that reaches this part of the house where the new router is located. The signal from the main router is quite weak out here.

What else should I be doing?
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DG9

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Re: How to Daisy Chain a Router to Another Router?
« Reply #1 on: September 05, 2013, 05:41:40 PM »
Weird! I spent last weekend trying to do the same thing with no luck. Hope someone has an answer for us....

The Gorn

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Re: How to Daisy Chain a Router to Another Router?
« Reply #2 on: September 05, 2013, 06:48:21 PM »
I figured it out.

Basically,

1) You don't use the WAN port at all in this configuration. It's unused.
2) You reset the extra router and connect the router to a PC and get into the admin page.
3) You disable its network DHCP so that the new router does not act as a DHCP server. (Assuming that the "main" router is a DHCP server.)
4) You set any wifi WAP passwords in the new router.
5) When you reboot, connect ethernet from your main router to one of the four general purpose RJ45 jacks.
6) Anything ethernet that wants to share the bandwidth plugs into the remaining RJ45s. (Yes, that's correct - the WAN (upstream) connection is at a peer level with other clients.)
7) Wifi from the new router should also receive DHCP service from the main router.

The wifi from the new router is working with a tablet I tested it with.

Both old and new routers are Dlink and I had to mess with the router's own assigned IP address (which becomes its "gateway" address to clients) because I had occasional conflicts where the new router appeared to fight the old router for control of 192.168.0.1. (Same manufacturer, same defaults.) Finally I wised up and set the new router to 192.168.0.5, which seems to be stable.)
« Last Edit: September 05, 2013, 07:30:54 PM by The Gorn »
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pxsant

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Re: How to Daisy Chain a Router to Another Router?
« Reply #3 on: September 06, 2013, 03:24:02 AM »
I have something similar.  My modem/router from my Internet provider is strictly wired with no wireless capability.  In order to get wireless, I cascaded a Dlink router with wireless to the providers router.  There are three separate issues to consider here.

1.  Physical wiring - connect the new router WAN port to any open LAN port on the old router.   Don't worry about crossover cables vs standard cables etc.  Any router made in the last few year will auto detect the cable type and connect correctly.

2.  Old router - The old router will have 3 items to be aware of. 
      a.  The WAN IP address will be the address assigned to it by whatever it is connected to.  If it is direct to your Internet provider it will not be a local  address, i.e. 102... etc.   This address is is irrelevant to the discussion.
      b.  The LAN IP address.   This will be something like 192.168.0.1 or 192.168.1.1.  Whatever this is will be the network which the router will use to assign DHCP addresses to connected devices.  I have mine set to assign addresses beginning at 192.168.0.100.
      c.  Default gateway. - This will be the base address of whatever your router is connect to.

    None of the settings on your old router should be changed. 

3.  New router -
      a.  The WAN IP address will be the address assigned to it by the parent router it is connected to.  For example in my case it could be 192.168.0.128.  It will be somewhere in the range of the allowed LAN IP addresses of the parent router.
      b.  The default gateway will be the base LAN IP address of the parent router.  In my case 192.168.0.1.  Don't change this or your second router will not connect.
      c.  The LAN IP address make sure this is assigned to a different IP address than your parent router.  For example in my case it is 192.168.1.1.  This can't be the same as the parent router (192.168.0.1 in my case) or there will be a conflict between the two routers.

The effect of all this is that you will have two different networks in the house - 192.168.0.1 etc and 192.168.1.1 etc.   Both will be able to connect to the Internet.

The only potential issue is if you want to copy files directly between two machines which are not on the same network.   While it is possible, it is much easier and less aggravation  to just use the sneakernet method to copy the files.

Gorn I see what you are doing.  Basically you are using the second router as a switch which has wireless capability.  You are taking the router portion out of the picture.   This should work fine and in fact will keep all systems on the same network.
« Last Edit: September 06, 2013, 04:06:08 AM by pxsant »

The Gorn

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Re: How to Daisy Chain a Router to Another Router?
« Reply #4 on: September 06, 2013, 07:01:52 AM »
I originally messed with trying to make the second router be a true "downstream" router with its own IP space, etc. connecting via its WAN port, but what always happened was that it never detected the presence of internet on the WAN port. I suspect I may have gotten the gateway IP address of the second router incorrect.

The way I have it, I lose one RJ45 jack to the WAN connection. But, devices connected through the new router (switch) share the address space of the original router, so I can share files, etc across computers connected to both routers.
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DG9

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Re: How to Daisy Chain a Router to Another Router?
« Reply #5 on: September 07, 2013, 02:49:15 AM »
I new how to do what Gorn did, but not with a a twist in Step 7 that I was looking for.  I wanted to broadcast a different SSID with different wireless security settings and password  from router #2.  Primary router is a d-615 secondary is 1 wbr-1310 both dlink.  In essence setting up two unique wireless networks off of one cable modem.

The Gorn

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Re: How to Daisy Chain a Router to Another Router?
« Reply #6 on: September 07, 2013, 06:32:41 AM »
I new how to do what Gorn did, but not with a a twist in Step 7 that I was looking for.  I wanted to broadcast a different SSID with different wireless security settings and password  from router #2.  Primary router is a d-615 secondary is 1 wbr-1310 both dlink.  In essence setting up two unique wireless networks off of one cable modem.

That's EXACTLY how this setup works. I didn't even mention that issue. Just configure the second router's wifi however you like it.

The new router has a unique SSID, different than the main router, and even a different password. To anyone who sees both signals, they will choose the one that is stronger. Maybe pick different channels if the routers walk on each other.

To the original router, a wifi connection to the new router will look like a wired connection and a wired IP address.
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DG9

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Re: How to Daisy Chain a Router to Another Router?
« Reply #7 on: September 08, 2013, 03:45:29 PM »
A few minor adjustments and it works, I may need to increase my DHCP IP Address Range, too many devices!  When I left DHCP on originally in the second router everything worked fine too with a range that did not overlap router 1's, but I could not get the wifi to work.  Who knows, enough tweaks and taps and eventually it worked.  Thanks Gorn!

This stuff is a love hate for me. Love to tinker and hate to burn the time...

The Gorn

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Re: How to Daisy Chain a Router to Another Router?
« Reply #8 on: September 08, 2013, 05:05:31 PM »
No problem. An interesting twist with this cheap $15 refurb product is that it has multiple modes for wifi: router, access point, and something called WDS - which enables the thing to act as a wireless repeater in order to extend the range of an original device. These modes (which I did not initially notice) probably make the special instructions for chaining routers kind of moot.

Maybe I really needed access point. I may experiment with it.

My older router (Dlink DIR-655) does not have those options - only a router implicitly.
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