How to set up a network with 4 routers – two of which will be bridged.?

Saturday, February 6th, 2010

How to set up a network with 4 routers (2G’s and 2N’s) – two of which will be bridged and two will be connected to the modem via cable.
The problem I am having is the IP’s get jammed and the computers and laptops lose connection.
Is this set up even possible and anyone have any refs for good websites, I have been using DDWRT.com

First, you cannot connect two routers directly to the modem. The modem only supplies one public IP.

You can have one router to the modem, then have a bridging router into that. The other bridged router can then provide a local LAN elsewhere, and you can put the fourth router there to provide wireless.

Modem -> router1 – LAN -> Bridge router2 -> wireless bridge -> bridge router 3 -> LAN (same as first LAN if transparent bridge) -> router4

Router 4 may just use it’s LAN ports – turn off it’s DHCP, and everyone will get a DHCP address from router1. Hard code router 4 to an IP different than router1.

So, in terms of IP: (example values)
Router 1 – set to give out DHCP. Assume router address is 192.168.1.1. Set DHCP pool of 192.168.1.100 to 192.168.1.150
Plug LAN port from router1 to bridge router2.
Bridge router2 – set to 192.168.1.250 – transparent bridge mode (IP for admin access)
Bridge router3 – set to 192.168.1.251 – transparent bridge mode (IP for admin access)
Router 4 – set IP to 192.168.1.2. Turn off DHCP, and use LAN ports only (not WAN port). Bridge router3 plugs into LAN port of router4. Router4 then just acts as a switch and wireless access point.

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Ethernet vs 4G network, should we upgrade?…?

Wednesday, November 4th, 2009

Whats the diff between Ethernet and a 4G network? Is Ethernet old or something? Should we upgrade is it better? Nortel vs. Cisco thoughts?

4g networking is still in development. 3g networking is available now.

Simplified breakdowns:

If you travel all over the country on a weekly basis, ask your employer to get 3G for you. It will allow you to use your laptop any place that a cell phone works. It’s expensive. $200-$300 per month on average. It costs more, the more you utilize it. It is not a flat rate service like your Cable or DSL Internet service at home.

Ethernet is just fine. It works. Most Ethernet is faster than most wireless. My wireless LAN is operating at 300Mb/s. Which is faster than 10/100 Ethernet. Yes actual throughput of my wireless beats 10/100 Ethernet. My wired LAN is operating at 1000 Mb/s. My Ethernet is faster than my wireless. All Ethernet is more secure than ANY wireless.

If you want to be able to carry your laptop around the house without wires, you should get a wireless router. You may or may not need a wireless adapter for the laptop. Most newer laptops have a wireless adapter built-in.

If you have an existing wireless router and it works for you, there is no reason to get a new one.

If you are buying a wireless router for the first time, get an 802.11 draft 2.0 N type wireless router. I suggest D-Link DiR-655. It outperforms ANY 802.11 g type I have tested it against. Including the models that TracyL typically suggests.
Buy the same brand of wireless adapter as the router. If you buy a Linksys router, buy Linksys adapters, and so on.

Nortel and Cisco both manufacture and brand some very well made hardware. For home use Cisco and Nortel are overkill. For small office they are too. For a mid to large business they are worthwhile.

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