2 routers behind switch - no internet

Trendnet Teg-s8 8-port 10/100/1000mbps g...
January 23, 2010 at 19:36:21
Specs: Windows XP
Hi all,

I have the exact same setup as Zeus


Modem -> Switch -> WAN of Router 1 and Router 2 -> PCs

Router 1 DIR-655 - internet access OK
Router 2 Belkin G - internet access FAIL

What do I need to do to get router 2 to have access?? I have 2 IP provided by Shaw (dynamic IP only)

Thank you

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January 24, 2010 at 00:50:19
You need to get more than one IP address from your internet provider. each router will try to get its own IP address.

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January 24, 2010 at 02:13:39
I was under the assumption that switch port #1 would be getting connection from my cable modem and would not take up an IP.

If I understand you correctly, in my case I would need X number of IP for X number of ports used on switch? In this case, 3 IPs needed.

What can I do in this case as I'd like to have 2 networks as the current network is shared by the entire family and sometimes family members stream video or does VoIP and causes huge spike on the network if not kill the connection. For example, my regular down speed from speedtest.net is 25Mb/s but during streaming my speed goes way down to 2-4 Mb/s and ping varies from 50 - 600 ms.

I have a D-Link DIR-655 that I am trying to set up as my personal network and a belkin G as family network. Am I better off learn some QoS tweak or some sort of priority management?

Please help ... I have spent 6+ hours reading online and trying to figure this out but majority of the articles I read are going for router behind router setup which I'd prefer not to as subnet/changing IP can be pretty hectic (network novice here)

Thanks in advance.

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January 24, 2010 at 04:49:54
Click on my name at the top of my response and read my "how-to" guide on adding a second router. That will explain how to make it work. You don't require a second external IP from your ISP as the first router (the one connected to the external connection) will do NAT for the second router.

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January 24, 2010 at 08:57:41
otezs you cant address bandwidth utilization with more networks. This approach won't make a different to someone on either network hogs all the bandwidth. Both networks feed from the same trough.

Consider all you need is this
Keep the extra router as a spare.

Now if you want to do as you desire, two routers off one switch which is off the one internet connection, it can be done.

First thing you consider is the two wan port ip addresses. You say you have those so the modem<>switch<>router(s) setup is correct. Confirm they are getting ips by looking at router status or the wan config page in the router. If not workiing ask your isp what the correct settings are.

Next issue is getting them all in the same network physically and same subnet.

You configure each routers lan access to the same subnet so router1 is 192.168.x.1 and router2 is 192.168.x.2
Disable dhcp serving on both routers.
Manually assign ip to the pcs starting and .3. To load balance the network choose have to be on the 192.168.x.1 for gateway and the other half set to 192.168.x.2

Install a crossover cable from router1 to router2 lan ports. Now you have physical connectivity.

Mission accomplished. All pcs are in the same subnet. They can communicate between routers. They all share the same internet access.

What you could do to address the bandwidth issue is you can put a proxy bandwidth limiter instead of one router and put everyone you want to limit on that router gateway.

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