Question about Linksys Wireless-G WRT54G Router

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How to connect Wireless router to Cabel Modem and Vonage Modem?

I have a Motorola Cable Modem, and also have a motorola Vonage modem. How do I connect my Linksys wireless router to these?

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  • borsteth May 11, 2010

    We'll need more specifics in order to get more detailed answer (Make & Model for all 3 devices).

    A general rule of thumb would be Cable Modem -> Voip Adapter (vonage modem) -> Linksys wireless router.

    As for specifics, this depends on the configuration options available to you on all of the devices. If you're concerned about navigating the 'advanced' options on the Cable Modem and Vonage Adapter (and if your cable modem only has one available port for 'internet use'), you could simplify configuration leaving everything to 'obtain everything automatically' by purchasing a hub or switch, and plugging things in this way:

    Cable Modem
    |
    Hub or Switch
    | |
    Vonage TA Linksys Wireless Router



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  • Master
  • 623 Answers

First of all: it would be good to know which devices you are using. This would help to be more specific.

But anyways:

  1. Connect a normal Ethernet cable from your DSL or Cable modem to the Internet (or WAN) port of your vonage router.
  2. Then connect another Ethernet cable from one of theLAN ports of the vonage device to the Internet (or WAN) port of your Linksys (The one that is separated from the 4 LAN ports.)
  3. Make sure that the Linksys is set to DHCP (Dynamic IP Address), soit can get it's IP address from the vonage router! (Look at your manual. If you don't have one, you can get it here. Choose the right version number - you can find that on a sticker at the bottom of the router - and download the user guide)
  4. Connect your computer to one of the LAN ports on the Linksys.
If you have any more questions or this desciption is not clear to you,just come back here and leave a comment - I'm happy to help.

Posted on May 23, 2009

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Hi there,
I will try to make this as clear as possible, but if you have nay questions, please come back here and let me know.

You will need 4 things: 1 Surfboard Modem, Wrt54G, vonage router, computer. Put them next to each other without having plugged in anything ( no ethernet, no power cable!). Make sure that the WRT54G router is back to default settings by pressing the reset button on the back of the router for 10 seconds.

  1. Connect the power cable to the Modem. Power light on?
  2. If yes, connect the coax cable from the wall to the modem. (The one that looks like a TV cable)
  3. Connect the power cable to the router and wait until the power light is on steady.
  4. Connect your modem to the router. Plug an ethernet cable first into the modem and THEN into the WAN port (the label says "Internet") of the router.
  5. Plug an ethernet cable into one of the router LAN ports and connect it to your computer.
  6. Power on the computer.
  7. Open the Control panel and the Network Connections applet.
  8. You should see something called "Local Area Connection".
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  10. Double-click on "Internet Protocol (TCP/IP)" and make sure both radio buttons are set to "Obtain...automatically".
  11. Close all Windows by clicking "OK".(The second one takes a moment, because it applies the settings.)
  12. In the open window choose the Support tab and you should see your IP address, your Default Gateway (192.168.1.1) and your DHCP server (192.168.1.1)
  13. Open Internet Explorer and type "192.168.1.1" in the address bar.
  14. If you have reset your router to factory defaults, leave the username blank and type "admin" in the password field.
  15. On the first page (Setup), you should set the Internet Connection Type to "DHCP", unless you get a static IP from comcast (which i doubt).
  16. Go to the Wireless tab and ensure that wireless is enabled.
  17. Go to the "Security Tab - Wireless Security" and ensure that NO security is enabled for now.
  18. Open a new browser window and see if you can open a web page. Use an address that is unlikely to be in cache - try "http;//www.mit.edu" or so.
  19. Close your browser for now and come back here later to setup your wireless security etc.
  20. Now power on your vonage router and wait until the power light comes on steadily.
  21. Connect an ethernet cable from a LAN port of the router to the WAN port of the vonage router. (Plug it into the router first!)
  22. The vonage device should blink and establish a connection (Internet light is steady on). This might take a moment, because the device is downloading the newest firmware as well.
  23. Once the vonage router is on and the lights are steady (you didn't say which vonage device you have, so I can't tell how many lights there are), plug normal telephone ( not a wireless one) into the vonage router and see if you can get a call signal.
  24. If you were successful - sit back for a moment, enjoy the triumph and treat yourself with a nice drink!
There are a couple of things you still have to do, but the main thing is done.
  1. Make sure that you can access the internet from your wireless laptop before you start changing settings.
  2. Get a manual for the router here.
  3. Go back to your router's web page and set up wireless security (don't use WEP - that is not secure enough)
  4. You will have to setup QoS (Quality of Service), in order to prioritize your VOIP traffic, so calls go through clear even when you are surfing/downloading.
  5. You can setup QoS via IP or MAC address. Use your vonage router's MAC address (you'll find that on the bottom sticker), because it creates less overhead.
  6. If you plug in anything else into your vonage router, it might be on a different subnet and might not be able to communicate with your other computers (vonage router often use 192.168.15.x as their IP address)
  7. Once you're up and running and feel familiar with the settings for your router, I would change to a different firmware, because QoS is a crucial point for VOIP and I never was really satisfied with the Linksys firmware. I use tomato, for the simple reason that I was afraid of other more complicated firmware and you can always go back to Linksys, of you don't like it.
So...my fingers are bleeding now, but I hope this helped you out.
If so, please come back and let me know. Others might have a similar question.
If not, just tell me where you got stuck and we will go from there. According to the movie 'Galaxy Quest':
"Never give up, never surrender!"

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