All Questions
18 questions
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How does OFDMA collaborate with CSMA/CA in WiFi 6 and beyond?
The use of CSMA in legacy WiFi conflicts with OFDMA in emerging WiFi protocols. We assume a scenario where all devices (APs and stations) are 802.11ax-based and support OFDMA. We are considering the ...
- 11
1
vote
1
answer
69
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CSMA/CA and wi-fi repeaters
I found this interesting article: Why Don't Wi-Fi Repeaters Work Very Well - OK, Why Do They Suck? 1
The author has good points. After a few posts the author says something that catches my attention:
...
- 13
0
votes
2
answers
49
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Is this possible or am I just seeing things?
I was just playing around in the properties section of my student accommodation's 5ghz wifi network and upon scrolling down in MS settings where it describes the specs of the network I realized that ...
0
votes
1
answer
331
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Bad connection with 30 clients on a Ruckus R750 router
I have 30 Win 10/11 laptop gaming computers in the office. I put a Ruckus R750 (AX) in the office and provide the wireless connection for the computers.
When 30 computers start to visit a website like ...
0
votes
1
answer
711
views
Wireshark in windows 10 not showing "80211" header for Link Layer Header column
I am trying to capture Wi-Fi frames and check few parameters of 802.11. For that, I was trying to set the Link Layer Header of Capture Options in the wire shark. The drop down of the Interface WiFi is ...
- 141
1
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0
answers
95
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Is there a limit of connected devices in TDLS (802.11z)?
I know handshake and link establishment is done at routing level, and then the link works on switching level allowing devices to talk without causing any latency or work burden on the AP, but is there ...
- 121
2
votes
1
answer
3k
views
802.11ax monitor mode captures very few packets
I am using an ASUS RT-AX88U router and a Samsung Galaxy S10 to transfer 802.11ax packets. Using iperf3, I can get speeds of up to 900 (!) Mbps.
I use a laptop with an Intel AX200 chipset put in ...
- 29
0
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2
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19k
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How to connect Echo Dot to University protected wifi
I recently won an Echo dot in a Hackathon and I was very excited to try it out but sadly the dot does not connect to 'Eduroam', the university network. The Uni site says that eduroam uses '802.1x ...
- 123
1
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0
answers
565
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802.11s mesh network cannot ping between different Ubuntu systems
I am setting up an 802.11s mesh network on Ubuntu Linux systems, after disabling NetworkManager and netplan.io. The following commands are an example of what is used to set up the mesh on one ...
- 11
0
votes
1
answer
135
views
Deauth frames showing up as ethernet II frames under wirshark
I'm trying to write a simple deauth attack script, but when I when fire up wireshark instead of deauth frames I only see Ethernet II frames; in addition the frames have no effect on any of my network'...
- 103
0
votes
1
answer
487
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Which 802.11 frame should be used to identify clients of an Access Point [scapy]
Which 802.11 frame should I use in order to identify if a specific MAC address is associated with an Access Point. Beacon frames as named could be used to identify the Access Points, but how to ...
- 217
1
vote
1
answer
917
views
How MU-MIMO handles TxBF and transmitting multiple streams together?
I have gone through a lot of references and most of it told like atleast 2 antennas are required to do TxBF, and with two different antennas either we can do TxBF by transmitting same streams or ...
- 13
0
votes
1
answer
2k
views
How often will an unassociated STA scan the network?
Consider an 802.11 STA that is currently unassociated. While unassociated, how often will it scan the network (passively or actively) to determine available APs?
There is enough information about the ...
- 13
0
votes
1
answer
1k
views
How to capture tcp/ip traffic in wireless connection with 802.11x frame format?
I'm using wireshark program to sniff my traffic. When i change mode of my network card from managed mode to monitor mode, i only see "beacon frames" and "RTS & CTS" packets in wireshark. Is there ...
- 105
0
votes
2
answers
6k
views
How to decrypt 802.11 packets manually?
Without using Wireshark, how are 802.11 meant to be decrypted? I know the EAPOL and passphrase are required, but what are the steps required to perform the decryption? Another way to put it is, how ...
- 259
2
votes
1
answer
974
views
Multiple 802.11 associations with single physical antenna?
My Question is as an access point with a single PHY# hardware antenna is able to create multiple virtual interfaces and and announce multiple SSID
Now, as we can create multiple virtual interfaces in ...
- 288
0
votes
1
answer
552
views
How to find 802.11 protocol variant, and decipher packet_payload_info in PcapNG files?
I'm building a (Python) parser of PcapNG files created by Wireshark.
After reading https://www.winpcap.org/ntar/draft/PCAP-DumpFileFormat.html, I'm having the following problems:
I'd like to ...
- 1,213
4
votes
2
answers
23k
views
How to tell if I'm using 802.11AC?
I have an ASUS USB-AC53 wireless adapter, with a Netgear 6300v2. The speeds are OK. There is 2 drywall walls separating the computer from the router, and only about 20ft. The signal strength and all ...
- 41