Podcast #128: We chat with Kent C Dodds about why he loves React and discuss what life was like in the dark days before Git. Listen now.

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.

Filter by
Sorted by
Tagged with
0
votes
0answers
6 views

Optimal design for separating traffic from 1 program through 2nd router while leaving all the other programs going through 1st router? [on hold]

I have the following network setup Speedport Router(integrated modem) - this one gets DSL internet connection (250 / 40 Mbps) Linksys EA6900 Router (without modem) - this one is connected to the ...
0
votes
0answers
11 views

WiFi Camera connection mechanism [on hold]

I've recently been experimenting with an ezviz CTQ2C wi-fi camera. To connect this to my network, I start the ezviz app on my phone, enter the wi-fi credentials (this is just the WPA2 password) on my ...
0
votes
0answers
19 views

Using external directional antennas with 802.11ac MIMO / beamforming [on hold]

I would like to add external directional antennas (Yagi or panel with ~30˚ horizontal/vertical beamwidth) to an 802.11ac router running DD-WRT. This is for an outdoor, field application where: ...
0
votes
1answer
27 views

ARPs in WIFI Interface Monitor Mode

I set my WIFI interface to monitor mode. I did not expect to see any ARP requests. Can someone explain why there is ARP traffic?
0
votes
1answer
20 views

How does a transmitter re-modules a wave radio to get more distant devices?

I was told that a WiFi AP re-modulates its radio signal in order to enable it to better go through obstacles and noisy places, reaching more distant client's transceivers this way. Basically, the ...
0
votes
0answers
12 views

DHCP Server not sending ACK packet [closed]

Situation: Client machine can't connect to WiFi at a location that is using an Aruba 303H Remote Access Point. If he has a wired connection to the RAP he receives an address through DHCP just fine. ...
0
votes
0answers
12 views

Can we consider mobile signal strength as radiation level? [closed]

I developed one Android project which is able to read mobile network information like Which gives mobile/wifi signal strength in dBm. Basically what I want to see is - Radiation generated from ...
0
votes
0answers
93 views

why iperf3 UDP throughput is lower than the TCP throughput?

I'm running an iperf3 throughput test from my PC to another one, going through a router. I've tried the same configuration for TCP traffic and for UDP traffic. However, for UDP traffic, I get worse ...
0
votes
1answer
43 views

AP won't join WLC

I have a lightweight AP AIR-AP3802I-E-K9 that I'm trying to connect to my WLC, but it just won't. When I run a debug on the WLC, I can see the Join request from my AP, and I can see my WLC sending a ...
0
votes
1answer
32 views

Functionality differences between an Wireless Access Point and a Switch?

I have a WAP connected to a switch via a twisted pair cable. Aside from the communication medium to other nodes (electrical signal vs radio waves), do they operate the same way? Specifically: When ...
2
votes
0answers
25 views

First fresnel zone and Epstein-Peterson approach

Let's say we have the following wireless communication system with obstacles located as drawn in this picture Solving this using Bullington method is straight-forward, only obstacles that fall into ...
1
vote
1answer
34 views

IPerf3 UDP does not meet specified bitrate [closed]

We are currently performing tests over a wireless network and are having some issues trying to get the correct configuration of iperf3. Our server side command line is as follows iperf3 -s -p 5101 ...
1
vote
2answers
37 views

Airtime efficiency

How is airtime efficiency measured? How does one increase it, decrease power consumption, and minimize the amount of RF transmitted? cf. these comments
0
votes
1answer
35 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 ...
1
vote
2answers
78 views

Is it really necessary for APs to constantly send beacon frames (always be in “discovery mode”)?

Why do wireless APs constantly transmit (e.g., with a beacon interval of 10×/sec.), even when no devices are connected to them? Doesn't that just cause needless RFI? Is it really necessary to ...
0
votes
1answer
72 views

Cisco LAP1142, usable without WLC ? Alternatives to a WLC device?

The title pretty much says it all. A charity I volunteer for was given a whole bunch Cisco 1142 ligth-weigth AP's. (A demolition guy pulled them from the building he was taken down and donated them.) ...
1
vote
2answers
65 views

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?
1
vote
1answer
34 views

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....
0
votes
0answers
50 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 ...
0
votes
0answers
24 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 ...
0
votes
2answers
51 views

Calculating maximum distance for receiving LTE signal

I work for a large retailer who recently started adding outdoor Yagi antennas to try to boost their LTE signal for their LTE based modems at each store. I wanted to see if there was a way to calculate ...
0
votes
2answers
142 views

How to connect multiple devices with identical static IP into a wireless network

I've been searching StackExchange and the Internet for a while looking for a solution for my networking question. Some articles I found are here, here and here, but these don't need to deal with a ...
0
votes
1answer
93 views

ARP spoofing over WLAN

As I understand, in ARP spoofing (of any kind), there's a man in the middle that intercepts frames from a sender (Alice) by masquerading as a receiver (Bob) and passes this frame to the server by ...
0
votes
1answer
28 views

Range of SSDP messages [closed]

I am reading about SSDP from here and here. I understand that its purpose is to advertise and discover network services. My question: Is the broadcast range of a SSDP packet local (e.g.: in a WLAN) ...
2
votes
1answer
51 views

Get WLC running-config including ALL secrets as plaintext

Our WLC 5508 pair is going EOL. I need to migrate the complete configuration (including secrets) to a new pair of CT3504 WLCs. The problem I have is when I run show run-config commands, username / ...
0
votes
0answers
103 views

4 ssids with 4 public IP addresses on pfsense

I have a requirement for 4 WiFi SSIDs, each with a separate public IP. As I need some sort of firewall I was thinking to get a pfsense Netgate SG-3100 that would have its WAN port connected to the ...
0
votes
0answers
14 views

WatchGuard interface with secondary router holding WiFi splash page

I have a captive portal splash page I need to be presented to only 1 Open Wireless SSID on a WatchGuard AP controlled via the XTM330. The WatchGuard is not able to present the required splash page ...
0
votes
0answers
36 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. ...
0
votes
0answers
13 views

How to save authorization infos on UniFi Network Controller?

We have two "Ubiquiti UniFi UAP AC LITE Router". They are great! But ex.: annually, I want to upgrade the firmware on them. For this, I quickly install an Ubuntu LTS in a virtual machine, install ...
-1
votes
1answer
27 views

Stable connectivity in a high-density residential WiFi environment? [closed]

I live in a densely populated area and my devices see 10-20 wifi networks at any given time. Once in every few minutes a ping to my router goes up to the point of timeout and the device loses the ...
0
votes
0answers
74 views

Has anyone successfully deployed WLC 8.3+ anchored wlan with PSK and CWA?

There seems to be something broken with Cisco WLC 8.3.140 and 143. 8.3 was the first AireOS release training to add MAC Filtering (CWA) and PSK. ISE is serving as the RADIUS server (v2.2). I can get ...
2
votes
2answers
57 views

wifi and vlans problems

I was given the task to come up with network design to change the existing one that we have since we are running a single network in the company with no VLANs in place to separate de departments. On ...
1
vote
2answers
35 views

How many public static ips do one need if a PC is behind a wireless router?

If a PC is connected to internet through a wireless router. How many public static ips do one got to get from the ISP. Do the router and PC both require one static IP. What if I want to add more PC ...
0
votes
0answers
23 views

Modbus Wireless

What is necesary to implement a modbus over wireless? I know that ethernet and modbus have different application layer different which evolves different package format and different physical ...
0
votes
0answers
25 views

Does mandatory/supported data rate prevent low speed clients from joining?

Let's say i have configured my wireless environment with following data rates: 6 Mbit/s -> Disabled 9 Mbit/s -> Mandatory 12 Mbit/s -> Supported 24 Mbit/s -> Mandatory 36 Mbit/s ...
0
votes
0answers
37 views

How does UMTS scrambling code work?

In my textbook it is stated that in a UMTS network, scrambling codes (Gold codes) are used to differentiate signals from different cells in the downlink channel, and signals from different user ...
3
votes
2answers
120 views

Wireless Multipoint Bridging / Backhaul Gateway Antenna and AP Selection

My company is replacing an old wireless bridging system with new 802.11ac gear. Layout is a central building with 4 remote buildings within 180 degrees line of sight. Bridging only. I think that I ...
-1
votes
1answer
43 views

How cellular networks gets internet? [closed]

Mobiles get internet but how? From the towers, we used to get signals and communicate with others like calling or a message but coming to the internet how in the terms of networking terms like radio ...
0
votes
0answers
33 views

Will LoRa work from Earth To Stratosphere?

I'm unsure if this is the most suitable exchange however I thought it seemed most fitting personally, please correct me if im wrong. I was wondering if LoRa would work to transmit GPS data from my ...
1
vote
0answers
40 views

What is the difference between Power control and Power allocation?

In the context of wireless communication (specifically device-to-device communication) what is the difference between Power control and Power allocation. I guess the latter is a form of resource ...
2
votes
1answer
58 views

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 ...
3
votes
1answer
72 views

Effect of physical travel on wireless connectivity [closed]

Given a stationary wireless router and a wireless device traveling from point A to B--passing directly by the router along the path--is there a speed at which the wireless device could travel to cause ...
2
votes
0answers
50 views

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 ...
0
votes
1answer
48 views

Routing in Wireless Ad-Hoc Networks

Let's say I have a mesh of sensors forming a wireless ad-hoc network. If one sensor wants to send data to the sink, it will transmit a packet via WiFi for example. My assumption is that there's no ...
0
votes
0answers
84 views

AIR-AP1832I-E-K9C no CiscoAirProvision SSID is showing?

Just trying to setup a AIR-AP1832I-E-K9C but no CiscoAirProvision SSID is showing? Anyone know what to try as the Mobility Express manual only has 4 steps and I have done them all and can't go any ...
3
votes
1answer
104 views

Does IEEE 802.11 allow soft-combining?

Out of purely theoretical curiosity, I was wondering whether the IEEE specification for WIFI allows for ARQ with soft-combining. I found a number of publications describing the benefits of soft-...
2
votes
0answers
110 views

Ad hoc vs Mesh, which one to use?

Say we have four nodes (A, B, C, D) that are arranged in a chain-like topology. A <-------> B <-------> C <-------> D Only the adjacent nodes are in range of one another (A can ...
0
votes
1answer
49 views

What does a LoRa Gateway actually do?

I have tried researching this question but I'm not quite fully understanding the benefits or true reasoning for having a Gateway. If you have two LoRa RA-02 modules they can communicate with each ...
2
votes
1answer
56 views

Wireless Controller 5520 Creating a dynamic interface

I'm hoping to determine the least intrusive way to configuring my WLC. I am working through the GUI interface and have created a new dynamic interface [Controller-> Interfaces] When I went to ...
2
votes
2answers
1k views

Cisco 899G-LTE Cellular 0 interface in spoofing mode

I have a problem. After I've reseted my router configuration it doesn't get IP from LTE SIM card. Seems like my celullar0 interface is in spoofing mode. > Router#show interfaces cellular 0 ...