Cable internet with DSL router problem?

Question

My work mate has a problem, his internet is cable broadband, the modem has a RJ45 ethernet connection however his wireless router is DSL. How can he plug his cable modem into his DSL router? would he need a new router or is there an adapter you can get?

Thank you

Answer 1

Let's try to clear up some myths.

A wireless router can only be "DSL" if it is a combination wireless router/DSL network bridge.

So we need some manufacturer's info and model numbers here.

I doubt your Mate has a DSL Wireless router, but there are some, so if you provide the model numbers we'll check and see.

More likely he has a wireless router.

He connects said wireless router to the Cable network bridge via an Ethernet cable from the WAN port of the wireless router to the Ethernet port of the Cable network bridge.

By the way it's not a Cable modem. It doesn't modulate or demodulate, nor does it convert analog to digital or digital to analog which are the criterion for a device to be a modem. It's a Cable network bridge. It bridges RG-58 cable to Ethernet.

Then he can connect his computer to the wireless router via Ethernet or via wireless network adapter.

Details:

Let's cover what you need to get Internet access to more than one computer at home, via wireless LAN (local area network).

1. You order or use your existing Cable or DSL Internet access.

2. Your Cable or DSL company sets up your Internet access and typically either rents or sells you a Cable or DSL network bridge. They often refer to this as a Cable or DSL “modem”. Actually a complete misnomer since the device does NOT modulate or demodulate, nor does it convert analog to digital or digital to analog.

Prices for Cable or DSL Internet access vary from approximately $19 per month to $80 per month in the United States. This varies based on bandwidth, location, and provider.

At this point you have what is commonly called “Broad Band” or “High Speed” Internet access.

Now you want to share that high speed connection with more than one system. You want to be able to cart your laptop all over the house and stay connected to the Internet as you do so.

1. Confirm that your system has a wireless adapter or get one and install it. You need one of these for each computer. USB type are better. USB type that are 802.11n are best.

2. Get a wireless router. I recommend the D-Link DIR-655. Get D-Link n series USB wireless adapters if you get the D-Link wireless router. If you get a Linksys wireless router, get Linksys wireless adapters. They work BETTER together if they are the same brand. This isn’t a requirement, merely a suggestion.

3. Plug the wireless router directly into the Cable or DSL network bridge via an Ethernet cable.

4. Unplug the electrical cord from your Cable or DSL network bridge for 30-45 seconds.

5. Plug the power cable back in.

6. Check the Cable or DSL network bridge for green lights.

7. Make sure that the properties of TCP/IP are set to Obtain IP address automatically, and obtain DNS automatically on ALL of your computers.

8. Turn on or reboot your system(s).

Now you should be able to stay connected to the Internet with all of your computers.

If you can not access the Internet from every computer:

Attempt to log in to your wireless router via your web browser (internet exploder or Firefox) by typing in http://192.168.1.1/
Then log in using admin and admin typically. Be sure to change the password to something of your own choosing.
Enable DHCP by following the instructions in the manual for your wireless router.

You only need one wireless router for you wireless LAN. One wireless router can accommodate up to 253 wireless computers. You can use combinations of wired and wireless routers together but typically one wireless router is sufficient for all your needs.

For security:

1. Don't announce the SSID of your wireless router.
2. Use WPA2 if you can. WPA-PSK if not WPA2, or WEP at the very least.
3. Put the MAC addresses of all of your computers into the MAC routing table of your wireless router and ONLY ALLOW from the addresses in the table of the wireless router.
4. Turn the SPI firewall of the wireless router ON.
5. Filter anonymous or incomplete packets.

If this all seems too complex and complicated to do, use local.yahoo.com to find a wireless network professional near you.

Answer 2

the way I am reading your question I am assuming that he has a wireless DSL router/modem that he wants to hook to the cable modem. If this is the case it will not work. He would need a simple wireless router not a router/modem, as he has a cable modem a second modem of any kind will not work. In simple line-up it would go like this.... cable into cable modem... via ethernet (rj45) to wireless router....then from wireless router by ethernet or wirelessly to pc.

Answer 3

He probably needs to buy a general purpose router to generate the wireless signal -- generally the wireless DSL modems will only accept a signal that comes from the DSL input -- not from a LAN input.

Answer 4

He can't, this is a combined router/modem. He need to buy a straight router only. This has a lan connector for the modem.