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Networking question - multiple routers.

post #1 of 6
Thread Starter 
Simply put, I daisy chained two routers together.

Router 1 is connected to the internet, and handles all hardwired connections (PCs).

Router 2 is connected to router one (Ethernet) and handles all wireless connections (laptops, Touchpad, Airdroid, etc...).

Issue: PCs cannot share files with laptops, and vise versa.

What to do?

Port fowarding, DMZ?

Windows 7 on all.

Thanks.

cg
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post #2 of 6
What type of routers are they?

Here are a few thoughts.

Router 1:
Enable firewall
Enable DHCP

Router 2:
disable DHCP
disable firewall
disable routing

Another way this can be done is to create network routing configuration on the routers.. but its really not necessary.

Whats i'm guessing is happening is router 2 is dishing out IPs on a different subnet then router 1 which is why A cant see B. What the above configuration does is allows them all to be on the same subnet so they can all see each other.

Basically you are looking to turn off everything on the second router except the wireless AP portion... basically making it a dumb switch w/ wireless AP.


/edit/ it would be smart to assign router 2 to a static IP so you can access it during the configuration and afterwards in case of any configuration you need to do after.. but make sure the static ip you use is something that will not get bumped into so keep it out of the DHCP range and maybe even add it to the ip reservation table on router 1.
Edited by Stizuner - 1/25/12 at 8:09pm
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post #3 of 6
Quote:
Originally Posted by Stizuner View Post

What type of routers are they?
Here are a few thoughts.
Router 1:
Enable firewall
Enable DHCP
Router 2:
disable DHCP
disable firewall
disable routing
Another way this can be done is to create network routing configuration on the routers.. but its really not necessary.
Whats i'm guessing is happening is router 2 is dishing out IPs on a different subnet then router 1 which is why A cant see B. What the above configuration does is allows them all to be on the same subnet so they can all see each other.
Basically you are looking to turn off everything on the second router except the wireless AP portion... basically making it a dumb switch w/ wireless AP.
/edit/ it would be smart to assign router 2 to a static IP so you can access it during the configuration and afterwards in case of any configuration you need to do after.. but make sure the static ip you use is something that will not get bumped into so keep it out of the DHCP range and maybe even add it to the ip reservation table on router 1.

This
 
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post #4 of 6
Well basically everything on the main Router doesn't know where to send the data to.
What I would do in another poorly designed state is to run two different subnets.
Say for example:
Router 1:
Network Address 192.168.0.1
Subnet Mask: 255.255.255.0

Router 2:
Network Address: 192.168.1.1
Subnet Mask 255.255.255.0

Login into Router 2: Set a Static IP for the WAN Address or you can do it the other way around so just set a Static Address for the Router.


On Router 1 set a Static Route to Network Address 192.168.1.0 Subnet Mask: 255.255.255.0 and the Route to the Static Route to the WAN IP on Router 2.


P.S.: This method can be used if you want to segment your network.
Also what Routers do you have.
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post #5 of 6
You're in a double NAT scenario if you used the WAN port of the second router. Your file transfers fail as all of the wireless clients are representing themselves as a singular LAN address within router 1.

You need to:
  • Assign router 2 a LAN IP address within the subnet of router 1 and outside of the DHCP range of assignable addresses
  • Disable DHCP on router 2
  • Connect devices together using LAN ports. Do not worry about a crossover as modern devices support Auto MDI/MDIX
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post #6 of 6
Thread Starter 
Thank you for the responses everyone. I am off to work, but will check these out tonight, once I am able to.

Router 1 is a Linksys WRT54G running Tomato, with a Primary DNS of 192.168.6.6 .

Router 2 is a Netgear WNR2000v2, with a primary DNS of 192.168.7.7 . This router is accessed through router 1, for administrative purposes, through 192.168.6.80:7777

Thanks again.

cg
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