An Ethernet hub is a device for connecting multiple Ethernet devices together and making them act as a single network segment

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Why is a router needed?

I‘ve been trying to figure out why a router is needed. I know a router can be used for DHCP and some other things, but I’m just thinking of networking with static IPs. So the following: Is it ...
13
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4answers
9k views

Where can I find an unswitched ethernet hub? [closed]

Back when I was just getting into networking, ethernet hubs were common, and switches were a fancy, expensive alternative. Then the price of switches came down so much that hubs became pretty much ...
12
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7answers
26k views

Can I charge USB devices from a powered hub that isn't connected to a PC?

This will probably sound familiar to most of you... In my home, we have a whole bunch of devices that can be charged via USB (two iPhones, a BlackBerry, an iPod Touch, etc ad nauseam). We also have a ...
10
votes
6answers
8k views

Should I use a network hub or network switch?

I want to put a networking device on an Ethernet connection between 2 digital devices. The communication will be 1-to-1; there will only be 2 devices connected through the networking device. And I ...
10
votes
4answers
34k views

Why does the USB hub need to be connected with my PC to charge my Droid phone?

I notice that my new Motorola Droid phone charges perfectly fine when I connect it to my computer via the USB cable, or if I connect it to a car cigarette Lighter -> USB adapter, or a wall Power -> ...
8
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3answers
3k views

Can modern switches act like hubs?

I've been trying to find a hub, specifically for the packet broadcast characteristic. I'm troubleshooting a NAS behind a NAT router and want to look at the traffic arriving on the wire and this seems ...
7
votes
8answers
110k views

How to “restart/repair” an USB port?

My laptop has two USB ports, but one is broken, so I use a USB hub in the other good USB port. In that USB hub, I use a mouse and keyboard. Suddenly, that USB port doesn't detect the mouse and the ...
7
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4answers
5k views

What is a router? What is a switch? and What is a hub?

I always mess up with the basic concepts in networking. This are the very basic questions. What is a router, its functions and what is meant by routing? What is a switch, its functions? Many time I ...
7
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1answer
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What is and how to increase the maximum number of usb devices?

I'm wondering what is the maximum number of USB devices the Linux kernel can manage? Does this depend on the root-Hub or something else, too? Is there a way to increase this maximum number? I need ...
6
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4answers
7k views

Identify the device if it is hub, switch, router or gateway

If you are given two hosts which are connected via a blackbox which you dont know. How can you recognize that blackbox as hub, switch, router or gateway without using any additional device or host? ...
5
votes
4answers
45k views

How to share a printer (or any usb devices) to two or more computers?

I want to share a printer to two computers sitting next to each other. Now I plug in the USB printer cable when one wants to print. Is there a cheap and better solution which allows two computers to ...
5
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3answers
2k views

Which power USB hub uses if it has external power supply as well

I have 7 port USB hub with external supply. I tried turning it off by removing external power but then it takes power from motherboard and is still working. I have many external hardrives connected ...
4
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2answers
1k views

In theory, how would you set up a mechanism by which repeaters/hubs could detect loops and shutdown ports to break the loop? [closed]

I am trying to think of a mechanism to use repeaters to detect loops and then shutdown ports in order to break the loops. Is it possible for any solution to work 100%?
3
votes
3answers
433 views

Why are USB hubs mostly 4- and 7-port

Why are USB hubs provided in 4- and 7-port varieties. What's special about these numbers? Why don't I see 3-, 5-, 6-, and 8-port hubs? Is there something special about 4- and 7-port configurations ...
3
votes
4answers
20k views

Split internal USB pinouts - is it possible?

I've currently got a situation in my PC where I have 3 devices that connect to the motherboard via the onboard USB pinouts. The problem is, I only have two sets of USB pinouts on my motherboard. ...
3
votes
3answers
3k views

Is there a USB hub that can also function as a fully powered USB charger? [closed]

I have several gadgets and a nifty cord setup on my desk that ensures I don't have to connect/disconnect cables; the thing I would love to do would be to keep the gadgets connected overnight (or ...
2
votes
4answers
623 views

Connect PC and Printer to wireless network

I have a wireless router downstairs in my house, and a PC and printer upstairs. Unfortunately he PC (or printer) does not have wireless, only an Ethernet port. What would be the best product or ...
2
votes
3answers
732 views

2.0 speeds on USB hub?

How capable are USB hubs? I have an AirPort Extreme router with a printer attached (it's not powered by USB). I want to extend this and add two hard drives (one for Time Machine and the other for ...
2
votes
1answer
447 views

How to extend the number of ports on a Switch?

Consider that I need to connect 15 computers on different collision domains. I understand that each port on a switch has a separate collision domain. So, all I need to do is to connect 15 computers to ...
2
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1answer
3k views

Why can't I ping any computers on the same hub?

I'm having some interesting problems pinging machines, with the end goal to have Computer B SSH into Computer C. The specific error message I get from ping is "Destination Host Unreachable", and ssh ...
2
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1answer
1k views

The cable of my USB port hub is too short - what to do?

I just bought a new USB port hub "MSY USB 2.0 4-port hub". It has two inputs: A small USB entrance input for external power (?) The problem is that the cable that comes with the hub (small USB on ...
2
votes
2answers
185 views

How to share internet using hub instead of wifi router

I have broadband, and my ISP set up my windows PC for the internet via a Ethernet cable. But my other PC (which runs Ubuntu Linux) can't now connect to the Internet. My ISP suggests using a Wifi ...
2
votes
1answer
701 views

Should I purchase a switch, a hub, or a router?

I have just installed a Motorola SURFboard SBG901 cable modem, and I can connect two computers I have to the Internet via Wifi. I'd like to distribute the Internet connection among some other machines ...
2
votes
3answers
2k views

Ethernet hub - is it an active device?

When building a small home ethernet network, we normally use switch to connect all cables together. I remember 10 years ago it was also possible to buy a much cheaper device called hub which can be ...
2
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1answer
1k views

MacBook Air: USB Hub Compatible with the MBA SuperDrive

A little background to those whom may think this Question too specific: The MacBook Air SuperDrive draws 1A vs 500mA of a normal USB device, and therefore you can't use a standard USB hub powered or ...
2
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1answer
168 views

Determining speed (class) of USB on PC

Is there a method for determining the speed of a USB port on a Windows XP PC, without using a USB protocol analyzer? I'm looking for something simple, such as looking at the Device Manager. I would ...
2
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0answers
26 views

Are switches on USB hubs there to enable/disable power or data or both?

I am interested in purchasing a USB hub with a disconnect switch for the USB signal. My question: Some USB hubs have individual switches on each port. Are those switches for power, or are they for ...
2
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0answers
335 views

USB Hub Error -62

I have a 5m usb cable which I want to connect to a usb port on a embedded device (linux debarm; kernel 2.6). The cable has one repeater so it's actually two cables with one hub between. When I plug it ...
1
vote
3answers
556 views

MacBook USB-Hub

I bought an active 7-port-USB-Hub to avoid all the cable mess on my desk. The following devices are plugged in: Scanner (which is not being used, actually) Keyboard Mouse Android-Phone When I now ...
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vote
4answers
7k views

Can't a USB hub power keyboard and mouse at same time?

I'm trying to use a Dell mouse and keyboard via a single USB port using the USB splitter hub, but the devices seem to misbehave. Just one of the devices work when I connect both. I figured out it's a ...
1
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1answer
93 views

Is there a driver for a hub?

Is there a driver for a hub/switch? So that I can control the flow of data from the other computer that currently uses bandwidth, so that I could get higher bandwidth.
1
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1answer
313 views

Network Hub to Hub - no network

I've set up a home network using hubs. I know it's best to replace hubs with network switches however the hubs were donated and it's not feasible to buy network switches. The setup consists of a hub (...
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2answers
212 views

How to extend or to divide a network? [closed]

I try to understand the difference between the Switch, Hub , Bridge , etc ... But I did not really happen. In the event that I wish to extend my network or divide, what material should I use exactly ?...
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2answers
1k views

Can Current Backflow from Powered Hub's Adapter & cause PC Damage?

Getting this short: Can current flow from a powered USB hub's power adapter (lying 10 Meter away) back to computer via usb port and cause damage to Computer components like mobo, etc? What should be ...
1
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1answer
2k views

Self-powered USB hub and power supply adapter ampere capacity

I am looking for a power supply adapter for my USB Hub so it can support at least 2 bus-powered external hard drives. The hub's rating is 5 volts, 2 amperes. I would like to know if it would be OK ...
1
vote
1answer
118 views

Bash not working any more?

I was trying to install home brew (I am new to the command line and was following some tutorials on how to get up and running with github). So I was following this Unofficial Update Method: Compile ...
1
vote
1answer
329 views

Why do I need a managed switch and which one should I buy?

I bought a 2nd router and I want both routers to have direct WAN access to the modem. One of the 2 routers directs VOIP traffic to a telephone line port. This VOIP service is provided by the cable ...
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1answer
2k views

Accessing network hard drive via two routers and WiFi

Below is the scenario at hand. To keep things short, I'm looking for a way to access the contents of the 1TB external drive from all three laptops shown in the diagram. Basically wanted to have the ...
1
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1answer
1k views

Toggle-able USB hub with more than one input and output?

I recently came across this product: http://ppa-usa.com/shared-network-hub-4-port-usb.html The only problem is, this is nearly opposite of what I need. Ideally, I'm looking for a USB hub-like device ...
1
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0answers
12 views

USB HUB reboots when external power is applied - normal or abnormal?

Equipment: I have a StartTech.com 7-port USB 3.0 HUB plugged into a PC. There are seven devices plugged into the hub, and I'm running the 12VDC external power to the HUB as well. The HUB is plugged ...
1
vote
1answer
519 views

Windows Tablet data and power from one USB

My Windows tablet has one mini USB port which is used for charging the tablet's battery as well as for data transfer but because there is only the one USB port it won't let me do both at the same time....
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2answers
124 views

Can just modem + hub distribute internet to the computers without router?

As I asked in question header, without router can we share the internet with modem+hub or modem+switch?
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2answers
735 views

Power a USB HUB via USB Male to Male cable by borrowing power from other USB port?

Is it possible to power a USB Hub by plugging into one of the ports in the hub a USB Male to male cable, and the end plugged in another USB port of PC? Will the hub draw power this way?
1
vote
1answer
182 views

wireless usb hub with the hub on the computer side - does this exist?

I'm looking for what is effectively a wireless usb hub, but where the "hubbing" part takes place on the computer-side. In other words, something like this: http://www.iogear.com/product/GUWH104KIT/ ...
1
vote
1answer
859 views

USB hub assigning random com ports when Windows 7 PC or USB Hub are rebooted

I have four hardware devices that are plugged in through a self powered USB hub. Currently the devices are assigned COM1 COM2 COM3 COM4 through device manager as hoped. However, when rebooting the ...
0
votes
2answers
3k views

Can USB Hubs affect peripheral performance?

Like many laptops, mine has 2 USB 2.0 ports. I'm looking to purchase a USB hub for my peripheral devices. I'm also planning on purchasing a laptop cooler with two USB powered fans, which connects to a ...
0
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2answers
175 views

Will connecting two hubs with two cables help for performance?

I have two 1 GBit hubs and I wondering if connecting them with two network cables help for network performance? Here is example: I have switch A and B. I have 4 computers, A1 and A2 which are ...
0
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2answers
1k views

Connect computers in a network, via hub or through another computer?

I'm using an internet hub to connect broadband and computers. When setting up a home network (for some simple file sharing), I can choose "this computer connect to internet through another computer" ...
0
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2answers
823 views

Why would a hub work when a switch doesn't?

We recently had a very strange problem. Two users share a 1gbps switch, and their network connection has been getting worse and worse (it does not disconnect, but has gotten REALLY slow, down to ...
0
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3answers
713 views

Small home network cabling/routing/switching advice

Coming into my home, have a modem connected to an allegedly 20mb broadband connection. The modem has a single ethernet output. At present, I have it wired into a WRT54G 1.1 10/100 router with 4 ports ...