Re: Qué Es Un Modem Y Cuál Es Su Función
Velva Non
The answer to this is yes. To do it you'll need to equip the computer with an ADSL interface card. The Linux Kernel supports a number of them. Be aware that unless your Internet Service Provider (ISP) can provide you with an interface card and offer supports for Linux computer (I don't know of any that do) you'll be on your own to make it work.
If you're looking for a solution with a minimum of maintenance, the answer is, in my opinion, no. It's simpler to have a dedicated router and dedicated ADSL modem. That configuration provides a point of demarcation if you have issue. Connect a computer directly to the ADSL modem, make the connection and see if you can reach the internet. If you can connect, you know the issue lies with what's behind the modem (either the router or the computer behind the router). If you cannot connect directly, then it's either the modem, the connection of the modem to the phone line or a problem at the ISP level.
A DSL modem and a normal POTS modem are two totally different kinds of animals, so what you plan won't work. An old style modem translates the (audible) sounds from the phone line into a bitstream over a (real or virtual) serial line, while a DSL modem works in a totally different frequency area and translates the DSL signal into an ethernet stream (encoded mostly in PPPoE).
Why not just call your ISP and get a new modem? If your modem is truly defective, the will normally replace it without cost. If they decide to charge you, consider buying a compatible modem from Ebay / Craigslist -- I wouldn't spend anymore than $10 for one.
Dependent on the type of dsl router/modem you have you may be able to set it up as a bridged device, thus feeding the data connection into one of your network cards. The modem router would allow all traffic through it and your firewall should be based on your linux box.
The function of the modem is to convert from one media to another - in this case from the docsis standard in use on the providers co-ax cable network to ethernet. You can then connect an ethernet router to this to connect to the cable provider network.
Often ISPs provide a combined modem and router device - these can support Wifi and ethernet and are ready for devices to connect to the internet as they not only provide the conversion from cable but the routing and nat function required to use IP to access the internet.
I need to turn off the Router functionality on my cable modem/router Nighthawk AC3200 (C7800) unit. The family was complaining about the wifi coverage in our single story house, so I purchased the Google Nest Wifi (Mesh) system.
Quesiton: How do I turn off the router functionality so that I'm only using it as a modem?
Also, is there anything special I need to do in order to ensure that my Nest Thermostat connects properly?
"unable" is not a useful problem description. It does not say what
you did. It does not say what happened when you did it. As usual,
showing actual actions (commands) with their actual results (error
messages, LED indicators, ...) can be more helpful than vague
descriptions or interpretations.
The Nest Thermostat saw the new SSID of the Google Nest Wifi, so I accepted. However, when I tried to access that thermostat from my iPhone Nest App, or from my PC browser portal, the thermostat didn't appear. When I went back, and connected to the old SSID provided by the Netgear Router, the Thermostat appeared in the Iphone Nest app and in the PC browser portal. Not sure what to expect if I turn off the "NAT" in the Router.
After reading the manual, it was obvious that this was not going to help. I talked to my neighbor, who is a CCIE engineer, but he was only offering suggestions and guessing as well. (He wrote the exams 15 years ago, and has moved onto other more interesting roles in his career - so nothing negative to say. He provided insight into how the equipment worked - and that helped.
My archer c3200 keeps shut off the wireless! The internet still working on the ethernet ports. The C3200 is pluged into UPS. The default is supposed to be wireless on. If I reboot or turn off the C3200 the wireless stays off. I have to press the wireless button for it to come on. The wireless will turn off again after been on for few hours. I need help to keep it on?
Do you mean both the 2.4G and 5G are not stable and keep disconnecting on the C6 router? How about the wired connection, is it stable? You may check if the internet LED on the C6 is orange or green when you lose the connection, ensure the connection between the C6 and your ISP modem is good. BTW, who is your ISP and what kind of connection are you using on the C6 WAN?
Why in the world would this button be on the router itself rather than, or in addition to, on the Tether app itself? At the very least when it says the button is turned off it would tell you how to turn it on.
I purchased an Arris sb8200 and an Asus ax3000(rt-ax58u). I activated the modem and I could get internet if I hook up through through ethernet. When I plug in my router through internet it does not establish a connection. In the admin panel of the Asus router it says "Your ISP DHCP does not function properly". I have tried flashing my router with the lasted firmware. I even took my brother's ax3000 and plugged it in and I have the same issues so I dont think its my router.
I have tried contacting Xfinity support but after running the "trouble shooting steps" they always say the system is telling them to set up an appointment with a tech which is 4 days way. I work from home and can't really afford to be without internet for four days. Any help would be greatly appreciated.
@ComcastCheFrom looking at the forums I see you have helped some with similar issues. If you can spare the time to help me i would be forever greatful.
I can only assume that this sent a manual provisionning signal because after 5 minutes everything rebooted and I am now using my router's internet. Dont waste your time with phone support, I talked to 4 different people last night and all 4 said "their system told them to send a tech" Good luck!
It takes 5 minutes for things to reboot and re-establish. I think the app lets you do a manual provisioning signal as part of its troubleshooting process. Neither of the four tech support people I talked to last night were able to do anything and all recomended a tech to come out.
I have gone through many forums and tried just about everything. I have disabled Ipv6, I have the "dhcp query frequency to normal and set the ttl values to yes", I have tried setting Ipv6 as passthrough and cloning mac. I have factory reset both the router and modem. I have left the modem unplugged for 20 minutes. I really dont want to return the router, but at this point im running out of options.
I have a Asus RT-AX88U. Same problem. I restart my Surfboard modem and that usually does the trick. Takes a long time but you're correct that it does work. Also, I found that if I go into LAN settings (on the router) and then into the DHCP server tab and then turn off the DHCP (apply and then wait) then turn it back on that it seems to work as well. After I turn it back on and apply I usually have to wait 30-60 sec before it starts to work. I really hope this helps someone like you have because this is a frustrating problem.
A modulator-demodulator or modem is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as telephone or radio. A modem transmits data by modulating one or more carrier wave signals to encode digital information, while the receiver demodulates the signal to recreate the original digital information. The goal is to produce a signal that can be transmitted easily and decoded reliably. Modems can be used with almost any means of transmitting analog signals, from light-emitting diodes to radio.
Early modems were devices that used audible sounds suitable for transmission over traditional telephone systems and leased lines. These generally operated at 110 or 300 bits per second (bit/s), and the connection between devices was normally manual, using an attached telephone handset. By the 1970s, higher speeds of 1,200 and 2,400 bit/s for asynchronous dial connections, 4,800 bit/s for synchronous leased line connections and 35 kbit/s for synchronous conditioned leased lines were available. By the 1980s, less expensive 1,200 and 2,400 bit/s dialup modems were being released, and modems working on radio and other systems were available. As device sophistication grew rapidly in the late 1990s, telephone-based modems quickly exhausted the available bandwidth, reaching 56 kbit/s.
The rise of public use of the internet during the late 1990s led to demands for much higher performance, leading to the move away from audio-based systems to entirely new encodings on cable television lines and short-range signals in subcarriers on telephone lines. The move to cellular telephones, especially in the late 1990s and the emergence of smartphones in the 2000s led to the development of ever-faster radio-based systems. Today, modems are ubiquitous and largely invisible, included in almost every mobile computing device in one form or another, and generally capable of speeds on the order of tens or hundreds of megabytes per second.
Modems are frequently classified by the maximum amount of data they can send in a given unit of time, usually expressed in bits per second (symbol bit/s, sometimes abbreviated "bps") or rarely in bytes per second (symbol B/s). Modern broadband modem speeds are typically expressed in megabits per second (Mbit/s).
Historically, modems were often classified by their symbol rate, measured in baud. The baud unit denotes symbols per second, or the number of times per second the modem sends a new signal. For example, the ITU-T V.21 standard used audio frequency-shift keying with two possible frequencies, corresponding to two distinct symbols (or one bit per symbol), to carry 300 bits per second using 300 baud. By contrast, the original ITU-T V.22 standard, which could transmit and receive four distinct symbols (two bits per symbol), transmitted 1,200 bits by sending 600 symbols per second (600 baud) using phase-shift keying.
d3342ee215