All Questions
Tagged with router ieee-802.11
40
questions
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56
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What device to use as an intermediary " Wifi Router" for a subnet, plug-and-play architecture?
I am new to network architecture so I apologize in advance for any nomenclature errors.
I have 50 IoT devices (running Ubuntu) that I want to stream significant data from. These devices are only ...
1
vote
2
answers
80
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WiFi password: What is the exposure? Is it only local or can WiFi password be used remotely somehow?
(As everyone does) I have a local WiFi password that is used for signing in and using the WiFi for local users.
I have a separate & far stronger (64 char) admin password to gain access to my WiFi ...
- 111
1
vote
1
answer
103
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Does each computer/smart phone use electromagnetic wave with different frequency to communicate when they're connected to a WLAN?
I read some papers about WLAN and Wi-Fi. They say that modern WLAN/Wi-Fi uses a kind of technology called "OFDM(Orthogonal Frequency Division Multiplexing)".
My understanding is: ODFM means ...
user85401
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40
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Does a WiFi client vary the strength of the signal it emits? [closed]
I am using a metal container to dampen my WiFi router in the hope of reducing its radiation health risks.
I'm wondering if the client device might increase its own emitted signal strength to ...
- 101
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2
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395
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How does a border router work
Supposing, we have following pieces in a theoretical network architecture
Network A: A low power IPV6 wireless network
Some low power hosts: Low power devices which are connected to the above low ...
0
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0
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63
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How is it possible that CSMA/CA works in areas with a lot of users within a small radius (e.g. rallies, concerts, etc.)?
My understanding of CSMA/CA is that devices listen until a Wi-Fi channel is idle before sending packets. If a collision still happens, then the devices waits a random interval before attempting to ...
- 1
1
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1
answer
399
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Do all devices which use Wi-Fi (802.11) use CSMA/CA?
I know this is quite trivial, but I just want to know if all devices which support Wi-Fi through interface cards/hardware (like laptops/PCs/phones..etc) use CSMA/CA irrespective of their router/...
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58
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Range of router and device in WiFi [closed]
Is range of the wifi network depend on Router only? Or does it depend on the connection device also?
I believe that the device need to transmit packet to router, so the range till which the device can ...
- 3
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votes
1
answer
101
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Reccomended set up for wifi in dense apartment block? [closed]
I live in an apartment block of 87 units & one thing most people in it complain about is the poor cellular data reception.
I have an idea of installing a fast wifi internet connection ...
- 103
2
votes
1
answer
2k
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Do two computers in the same wifi LAN communicate directly without the router? [duplicate]
I have heard (forget where) that in a local wifi network created by a router, when two computers communicate with each other, they communicate directly with each other, and their communication doesn't ...
- 1,555
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vote
2
answers
175
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Why are there so many more dual-band (2.4 & 5 GHz) Wi-Fi APs than single-band, 5GHz-only ones?
Why are so many more dual band (802.11n 2.4GHz & 802.11ac 5 GHz) APs than single-band, 5GHz-only ones? Is this for backwards compatibility?
- 189
1
vote
1
answer
558
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Hide SSID to block probe requests from clients
According to this Answer clients are sending probe requests to discover wifi networks.
If I hide the SSID the AP wouldn't need to handle these probe requests and therefore the workload would be lower....
- 13
2
votes
1
answer
247
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RV260W as Access Point
We recently upgraded to a proper firewall, with some help from this community, and are now looking to repurpose our RV260w as a wireless access point. I tried already, but I was trying to use the WAN ...
- 105
4
votes
1
answer
55
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Is there any problem with using wifi to continuously signal numerous sensors?
The company I work for is developing a sensor network that will require roughly 1 sensor per every 6 m2 or about 160 sensors for a 10,000 sq ft building.
They need to synchronize them by sending a ...
- 41
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1k
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will wireless devices' MAC address be saved on layer 2 switch?
So I know that basically switches work like this (assuming 2 PCs are connected via Ethernet port) - the switch will store the mapping of the 2 PCs' MAC address and the switch ports in which they ...
