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Questions tagged [wifi]

WiFi is a layer 1 and 2 networking protocol for wireless communication between devices. It is typically used in local networks for client access, but can also be used in point-to-point network links. WPA is used to encrypt traffic.

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Creating a bridged WiFi AP (hotspot) in Centos 8 (or Fedora)

I am trying to create a bridged WiFi hotspot on a Centos 8 system, using NetworkManager. The machine is Dell EPC3000, with two built-it GigE's and ath10k wireless adapter, plus an LTE WWAN. Creating a NATted hotspot works nicely: nmcli con add type…
Pasi Hurri
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Are caching proxy servers still be helpful for saving bandwith, now that major services have migrated to https?

I live in Turkey and am part of a group planning to build a WiFi-based ISP to service my home town, as we believe it will be easier to connect all the sub-villages that are not close to our town center wirelessly. During our research about the…
Fatih Kesova
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Is there any open source solution for controlling multiple Access Points from a central server?

This question stems from an answer to one of my previous questions. In that answer, Oskar Duveborn says the following: Most likely there are some open source alternatives perhaps with custom firmware for some cheap consumer access point that…
Max Schmeling
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How secure are wireless networks?

If I'm on an open wireless network, can a 3rd party capture packets and see all the internet traffic to and from my computer? What if WPA encryption is used, but someone has the key already? If I use HTTPS, can someone with direct access to the…
Lin
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One second delay before tcpdump returns packets

Using Ubuntu, I'm trying to sync tcpdump sniffing with self-identifying "pings" from a client device. The problem is that getting precise starts and stops is made difficult by what looks like a built-in delay in tcpdump. Here's the key line from my…
dlanced
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Adjacent channel versus co-channel interference

What is the difference between the two in terms of affecting signal strength or performance? Where I work, everything is on channel 1 6 and 11 for the 2.4GHz spectrum and I've been told that co-channel interference is more manageable or better than…
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What is difference between `Wireless Universal Repeater` and `Wireless Distribution System(WDS)`?

I have a DWL-2100AP, which has more extra modes other than Wireless Access Point: Wireless Acess Point Wireless Client Universal Repeater WDS with AP WDS My question is: what is difference between Universal Repeater and WDS ?
pylover
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Creating a network link between 2 very close buildings

I have a charity who have two adjacent medium sized modern detached houses (in the UK): the buildings stand next to each other and are less than 5 metres apart. They have DSL connected to a single computer in one of the buildings. They want to add a…
Daniel Johnson
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What benefits are there to enabling STP on a WiFi access point?

Our network switches have STP enabled, and I see that my APs have an option to enable STP as well. The purpose of STP is to prevent network path loops, but the AP only has one connection back to the switch, and only one connection to each client.…
Bigbio2002
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Corporate Wireless policies

Our corporate laptops are restricted to only allow internet access through our proxy (connection profile in Internet Explorer pushed through a GPO). On a remote/3rd party connection this is allowed by creating a VPN back to the corporate network…
Patrick
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wireless between 2 buildings

I am setting up a wireless LAN between two buildings -- one with Internet and one without. The distance between the buildings is about 900 feet. This goes across a 4 lane street and up/down a hill. It is line-of-sight with a few trees. I don't…
jftuga
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Should I be on different Channels for this WiFi network?

I'm not sure if our 3 routers, in our wifi network, should be on separate channels (so each can maximize the bandwidth per channel) ? Our office is networked via WiFi. It is in the shape of a 'L' and is made up of 4 rooms. In 3 of these rooms are 3…
Pure.Krome
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Have Ubuntu auto-connect to wireless AP without logging in

We have an ubuntu box set up to do some monitoring but due to the placement are unable to run CAT5 to the box itself. I have an Atheros PCI card that works great as long as someone is logged into Gnome and it doesn't disconnect from the AP during…
dragonmantank
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Are there any tests I can run on a network to simulate 100 heavy network users?

I will be hosting a Ruby on Rails workshop at a small hotel in the near future, and while they have 'Wifi' everywhere on the property, and the property normally hosts 150 - 300 people, I am not 100% confident that they have hosted 150 tech people…
marc.gayle
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How many simualtaneous users can WRT54G handle?

I am need to setup wifi connection for an expected audience of 100 users connected via Laptops. I currently have 3 802.11 G routers, that are all designed for home usage such as the WRT54G APs. Google didn't really turn up anything helpful. And will…
Nina Sonbolian
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