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Closed 6 years ago.
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I could not select the serial port in my Arduino IDE. It is greyed out even if I connect my USB to serial cable. What is the proper driver for that and where I can find that?
The driver for PL2303HX in Mac is here and in windows is here, which you most probably need. If you need the driver for CP210x USB to UART Bridge VCP (virtual com port), it is here.
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Closed 2 days ago.
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I want to connect three 12V pc fans and a 5V water pump to an Arduino Uno , how many relay modules would I need and how do the relay modules work...??
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Closed 7 years ago.
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If I open the port 22 in my home router so I can connect from the outside and I have three computers behind that router with the port 22 open where would my connection end up? In which of the three computers?
It depends on the router (configuration/software). In most cases it wont go anywhere. To have control over it you will need to redirect the traffic from port 22 to a specific IP address from the router settings.
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Closed 8 years ago.
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I know they are address schemes used in different layers, and that IPV4 is 32 bits while MAC is 48 bits.
My questions are:
Why do we need two different address schemes?
What is the problem if we decided to use the same address for both purposes?
Is there a reason for the MAC address requiring more memory?
Has the introduction of ipv6 changed anything?
MAC addresses is a Layer 2 Address, while IP is a Layer 3 Address.
Layer 1 is phisical layer
Layer 2 is data link layer ---> MAC ADDRESS
Layer 3 is Network Layer ---> IP Address
http://en.wikipedia.org/wiki/OSI_model
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Closed 8 years ago.
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It's well known there is the IP address (ipv4 or ipv6) and the MAC address, but does it exist another addresses?
IP address and MAC are related to Network Interfaces (Wifi interface, Ethernet ,PPP..), and PC could have many interfaces .
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Closed 9 years ago.
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In my house I have about eight walljacks with RJ45 ports for direct internet connection. A modem from my ISP is connected to a switch which supplies internet connection to those end points. On one of my end points in a central room I have installed a NetGear router. My TV and other devices are connected to the switch directly.
The question is how to force my TV or other devices to connect to the internet through the NetGear router?
Configure the TV (or other devices) with a static IP address and set the NetGear router as the Default Gateway.