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Questions tagged [wireless]

For questions about wireless networking (802.11), including any licensed or unlicensed RF medium used to provide point-to-point or point-to-multipoint network links.

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Two-factor authentication for Wi-Fi?

We have a new requirement to have two-factor authentication for a certain SSIDs in our enterprise. Currently we run PEAP-MSCHAPv2 to pass windows credentials to a RADIUS server (NPS running on a ...
A L's user avatar
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2 votes
0 answers
470 views

Cisco Prime: Accurate Wi-Fi association history?

I'm running Prime 3.7 with a 2504 WLC (8.5.151.0) and am finding that the client association history under Monitor -> Clients and Users -> [select a client] does not show associations that last less ...
Juffo-Wup's user avatar
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2 votes
0 answers
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RPL: questions on routing mechanism

I'm studying RPL and two questions came to my mind: 1: Both in storing and non-storing modes, if a node wants to send a packet to another node via P2P communication paradigm, then how does the ...
Luigi2405's user avatar
  • 151
2 votes
0 answers
48 views

Cisco Wifi phones unregistration from CUCME

I have: two Cisco Wifi access points AIR-AP1832I-E-K9 (AP1 and AP2) and two Cisco wireless phones CP-8821 (P1 and P2). Phone P1 P1 usually connects to AP1 and never connects to AP2 except if it is ...
Léa Massiot's user avatar
2 votes
0 answers
394 views

Cisco ISE 1.3 and 1.4 - Sponsored guest approval email - single click approval possible?

When self-registering guests generate a request to their Sponsor, how can one create a REST-based link that can approve new Guests with a single click from the email message? Has anyone successfully ...
raidORlostark's user avatar
2 votes
0 answers
95 views

MAC Layer Retransmissions during the same TXOP

Back in the day I was messing around with MadWifi and, if I remember properly, after a packet was transmitted if the sender did not receive an ACK in SIFS time after the completion of the transmission,...
George's user avatar
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1 vote
0 answers
131 views

Was Bluetooth AMP actually used?

Bluetooth AMP (Alternative MAC/PHY) is a way for bluetooth of using the 802.11 MAC/PHY, e.g. Wi-Fi, as a transport to send "High Speed" data, hence the "HS" in the "Bluetooth ...
user87470's user avatar
1 vote
0 answers
69 views

How does direct sequence n-bit chipping code recover bit in the event of interference?

Say for example my data stream was 1010.Using 4-bit chipping code, with a random sequence of 0100101101011001. The XOR'd data which the receiver receives is 1011101110101001. I understand that ...
spacecadetmatt's user avatar
1 vote
0 answers
50 views

MU-MIMO with spatially separated antennas

Assume a MU-MIMO capable wifi access point with two external antennas. The antennas are placed in two different locations. It's not possible for a wifi signal to reach (via air) from one location to ...
Daniel Jour's user avatar
1 vote
0 answers
448 views

What is difference between WMM-PS, Power Save Poll, Power Save non-Poll, Unscheduled Automatic Power Save Delivery (U-APSD)?

I am study on Power Save Mechanisms. Could you please show me what is difference between WMM-PS, Power Save Poll, Power Save non-Poll, Unscheduled Automatic Power Save Delivery (U-APSD)? and how to ...
Happy's user avatar
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1 vote
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178 views

Wireless guest vlan issue

I am trying to separate the traffic of a wireless controller using VLANs. I have a Cisco 4400 wireless LAN controller configured to connect to the guest VLAN on an HP ProCurve 5412zl switch. The ...
halemaximus's user avatar
1 vote
0 answers
120 views

How do Wi-Fi access points discard frames on adjacent channels?

Naturally, Wi-Fi devices (access points, client adapters) receive frames that were sent on an adjacent channel as these overlap, i.e., they 'see' frames that were sent on a channel that the device ...
Fabian's user avatar
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1 vote
0 answers
50 views

Who are the low-bit and high-bit users?

I am currently studying UMTS where Beam-forming antenna release(?) beam for low-bit users and high-bit users. Who are those low bit and high bit users? As I understand it, the low and high bit ...
letthefireflieslive's user avatar
1 vote
0 answers
243 views

Which MIBs support objects for 802.11 Client Associations with Client MAC addresses?

I am trying to find the MIBs given by IETF(through RFCs) or maintained by private access point manufacturers, which support Wifi 802.11 client associations. For example my Institute uses Airespace ...
digvijay91's user avatar
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31 views

Enhancing 802.11ac MU-MIMO Efficiency: Simultaneous STA-AP and AP-STA Transmission Impact on Goodput Prediction

In 802.11ac' MU-MIMO two things (it's a XOR) can happen since wireless is half duplex: 1)at the same time more STAs transmit to AP 2)at the same time AP transmits to more STAs. Is this true? If so, if ...
allexj's user avatar
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0 answers
35 views

Why isn't my computer flooded with Beacon frames?

I used Wireshark to capture IEEE 802.11 Beacon frames in promiscuous mode. I see frames from about a dozen of AP's around me. But I receive them only once in a few seconds, despite AP's having beacon ...
Sgg8's user avatar
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0 answers
27 views

beacon interval & number of APs benefits/downsides/

As far as I understand, A beacon announces an AP's availability & capability, to allow clients to make decisions about which AP to connect to, does this mean it matters less the less APs are ...
Peter's user avatar
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0 answers
16 views

Cisco WDS, FreeRadius and LEAP

Freeradius got rid of LEAP since some pointrelease of 3.2.x, and I'm stuck configuring Cisco WDS on their Aironet series. Since forever there was a tweak with LEAP in Cisco configuration like this: ...
drookie's user avatar
  • 243
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0 answers
119 views

Wifi 802.11ac dynamic channel width negotiation

Let's assume that AP1 is on channel 40 width 80mhz, AP2 is on channel 48 width 80mhz, It overlaps. As far as i understand 802.11ac has a functionality which detects width utilization per-frame and ...
Suttwells's user avatar
0 votes
1 answer
123 views

Relation between mean delay and network size

I am studying the effect of network size on the mean delay per received packet of a wireless sensor network. I am using a duty-cycled asynchronous MAC protocol.The topology is all sources directly ...
1118716's user avatar
0 votes
1 answer
108 views

How to measure the SINR for channel bonding?

I use to have a set up of a WiFi environment where I assume all devices operating over the same wireless channel, i.e., a single 20 MHz channel. A device would treat the transmission of all ...
Ewan's user avatar
  • 1
0 votes
0 answers
45 views

A possible solution to offloading clients on an existing network

I am working with an existing network that services approximately 1500 rural wireless clients [diagram: Customer], and it uses a single core Arista 7050T layer3 switch [diagram: Main Router] hooked up ...
Escape75's user avatar
0 votes
1 answer
376 views

High RX Pause Frame on Cisco 2960X

I have a Ruckus R310 that connected to Cisco 2960X and I saw a high RX pause frame. show flowcontrol interface gi1/0/1 Port Send FlowControl Receive FlowControl RxPause TxPause ...
sandy blaza's user avatar
0 votes
0 answers
47 views

In wireless networks, how do Service Sets and Basic Service Sets relate to each other, if they do?

I am beginning to learn about networks and wireless networks, specifically, and am having trouble grasping how do Service Sets and Basic Service Sets relate to each other, if they do. Are Basic ...
Veverke's user avatar
  • 101
0 votes
0 answers
42 views

What should I be looking out for in a wireless router to support a large number of users?

I hope this is the correct place to ask this. I was placed in charge of the network of a small business. Previously, the number of wireless devices connected to the wireless router was under 20, and ...
amsga's user avatar
  • 3
0 votes
0 answers
142 views

Set up multiple WAP4410N AP with same SSID

We are facing a WiFi connection issue in the prod environment at client place (a big hall, around 200ft x 150ft). Details: Environment: 4 Cisco WAP4410N Access points mounted on the pillars in the ...
Bharat Upadhya's user avatar
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0 answers
64 views

What spanning tree IEEE protocol does the Cisco 1252AG Aironet access point support?

Link to data sheet We're running Cisco IOS version 15.2(2)JA1. What version of the IEEE STP is supported on the Cisco Aironet 1252AG access points? We are using the "bridge X protocol ieee" command. ...
slantalpha's user avatar
0 votes
1 answer
52 views

Is the auto-correlation of a frame transient based on the physical characteristics of a device?

I am currently studying ways to fingerprint Wi-Fi devices based on their physical characteristics and I was struck by a question after reading Section B of this paper http://www.ccs-labs.org/bib/...
Daniele's user avatar
-1 votes
2 answers
82 views

Setting up a local network with access to the internet through a wireless access point

Intro At work we want to setup an 8 node raspberry pi cluster. The purpose of the cluster is to test different technologies and have a good time. We cant manage the wifi at work and the only way we ...
Christopher Brøndholt's user avatar
-1 votes
1 answer
183 views

link asa with core switch to wlc

have 4 switch 3560 POE-8 , 2 of them have been RESET, AND w l c 2100 RESET too, but there are firewall AND ONE switch. Keeps the OLD CONFIG. I try to restore the network to the same old ...
jeon 16's user avatar