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Search found 587 results on 24 pages for '802 1q'.

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• Trying to understand why VLANs need to be created on intermediate switches

  - by Jon Reeves

  I'm currently studying for the Cisco switching exam and having trouble understanding exactly how 802.1q tagging works. Given three daisy chained switches (A,B, and C) with trunk ports between them and VLAN 101 defined on both end switches (A and C), I'm not sure why the VLAN also needs to be defined on the middle one (B)? Note that I am not…

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• Slow wifi on Ubuntu 12.04 wifi driver ath9k

  - by lunar

  For the last couple of days my wifi connection is extremely slow. I am pretty sure that it is caused by the driver. Can this be improved? lo no wireless extensions. wlan0 IEEE 802.11bgn ESSID:"MyWiFi" Mode:Managed Frequency:2.437 GHz Access Point: 00:18:68:FE:7B:C7 Bit Rate=58.5 Mb/s Tx-Power=15 dBm …

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• Networking- Wireless and Wired not working

  - by JJ White

  So everything in Ubuntu has been working great until networking stopped working. I've spent the better part of two days scouring for a fix with no luck. Here is my info...your help would so be appreciated. grep -i eth /var/log/syslog | tail Sep 25 16:31:59 jj-laptop NetworkManager[970]: <info> (eth0): cleaning up... Sep 25…

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• Bluetooth not found on BCM43228

  - by TK Kocheran

  I've got a Broadcom BCM43228 mPCIe card which came with my motherboard (ASUS ROG Maximus V Extreme, can't seem to find a link to what the card is) which is working great for WiFi right now, but I can't detect the Bluetooth hardware onboard. In Windows, I have full Bluetooth 4.0 support. $ lspci 00:00.0 Host bridge: Intel Corporation…

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• how do i fix this: the networking and wireless are enabled. but list of networks under wireless networks not available

  - by Ayesha Ahmad

  i started working with ubuntu 11.10 last year. i upgraded to 12.04 a week back. since then i have had all sorts of problems with network connection. first had to install the new driver. the hardware switch somehow got disabled then the above problem arrived. even tho the options are all enabled, the OS is not able to detect…

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• Unable to make properly work the Ralink rt3090 wifi card on my Lenovo B575 with Kubuntu 12.04 64bit

  - by Sebastien

  I look and tried many solution from many thread but I still unable to make this wifi card work properly (very slow, unable to connect to some wifi spot, etc.). I tried to compile the driver from the ralink website but it doesn't work. Tried to blacklist many mod, withou any result. So here are some command results, hope their help…

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• Dell 3721 Wifi problem Ubuntu 13.04

  - by Sebastian

  I have a Dell 3721 which comes original with windows 8. I managed it to install ubuntu 12.10 on this laptop, even there was no out of the box drivers. With 12.10 I was forces to install this .deb package couple of times. After installing it, it was ok for some weeks before I have to install it again. Maybe some security updates…

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• How do I get to work my Atheros AR9485 Wireless card in Ubuntu 14.04 LTS?

  - by Ivan Kreimer

  I've recently installed Ubuntu 14.04 LTS in my ASUS D550CA, and so far things have gone great. The only problem I've got is the Wi-Fi. It doesn't work. I've got an Qualcomm Atheros AR9485. I've tried installing the drivers, but the sytem says it doesn't find any. So I started looking around this forum for solutions. I've…

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• iPhone core data problem : referenceData64 only defined for abstract class

  - by occe

  I have an application that downloads/parses a big XML file and store the information using core data (approx. 4000 objects (entities)). The XML is loaded/parsed in a different thread, which has its own NSManagedObjectContext. When trying to save the entities to the persistent store, I sometimes get the following error…

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• Fedora 12 Wireless problems (Intel Wireless 4965AGN Card)

  - by Ninefingers

  Hi All, I'm having an interesting experience with my wireless card at the moment. Basically, it does like this: I connect to the local wireless network (netgear router) It works, briefly, allowing me to browse a webpage or maybe two, if I'm lucky. It then stops working / sending any packets, whilst reported still…

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• Creating a dynamic lacp trunk from HP Procurve 2412zl to Proliant DL380 G7

  - by Maalobs

  I'm configuring an IEEE 802.3ad (LACP) dynamic trunk from a HP Procurve 2412zl (firmware version K.15.07) switch to a HP Proliant DL380 G7 server. The DL380 has 4 NICs and is running Win2008 R2, so I'm teaming the NICs together and leaving everything on the recommended "automatic" setting in the HP NIC configuration…

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• No Wi-Fi after installing Ubuntu 10.04

  - by EpsilonVector

  I have an HP Pavilion dv6500 with a Broadcom 802.11g Network Adapter. I installed Ubuntu 10.04 and the Wi-Fi doesn't work. I am new to Linux. How do I go about troubleshooting/fixing this? Is there a diagnostic script I can run and post results from?

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• WLAN device on Dell Inspiron not detected by Fedora 11

  - by Randell

  I recently installed Fedora 11 on a Dell Inspiron 14. I think it uses a Dell 802.11b/g Wireless LAN. Windows Vista can detect it but Fedora 11 can't. How can I fix this?

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• Wireless not working on ubuntu 12.04

  - by Yosef

  I just install ubuntu 12.04 but wirelless not works(windows 7 wirelless works). I open my windows 7 and see under Network Adapters: Edimax 802.11n Wireless Adapter Realtek PCIe GBE Family Controller Which drivers i should download to install them on ubuntu 12.04 to make wireless work? And how i install…

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• No wifi after installing Ubuntu 10.04

  - by EpsilonVector

  I have an HP Pavilion dv6500 with a Briadcom 802.11g Network Adapter. I installed Ubuntu 10.04 and the wifi doesn't work. I am new to Linux. How do I go about troubleshooting/fixing this? Is there a diagnostic script I can run and post results from?

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• activate wireless chip on ubuntu

  - by Charles

  I am currently using ubuntu 10.10 on my laptop , the model of my wireless chip is broadcom BCM4312 802.11b/g LP-PHY . I tried to activate the driver for the chip by clicking menu bar System - Administration - Additional Drivers . and activated Broadcom STA wireless driver. But the laptop can't detect any wireless…

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• NetworkManager will not allow me to select WPA

  - by Mala

  Hi I have a fresh install of Crunchbang (basically Ubuntu with Openbox instead of Gnome). In any case, I can't connect to my WPA network - when I click on it in the nm-applet and it asks me to authenticate my only options are: WEP 10/128-bit key WEP 128-bit Passphrase LEAP Dynamic WEP (802.1x) wpa_supplicant…

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• How can i configure country code in wireless WEP communication?

  - by Renjith G

  hi I need to configure country code between my wireless communication points. I am using madwifi, wireless tools and hostapd set up in my ap(board- linux OS(2.6.10)) , and am using OLITEC stick usb 802.11g card in my windows machine. I can communicate successfully using WEP,WPA-PSK and WPA , but i need to…

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• POSTFIX bouncing when destination is my domain

  - by ZeC

  I am using provider mail hosting to send emails. On my Webserver I also have Postfix running and configured. Here is my main.cf smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no append_dot_mydomain = yes readme_directory = no smtpd_tls_session_cache_database =…

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• Running Radius on a Novell Backbone

  - by YsoL8

  Hello I am a rookie network engineer and I've been asked to create a secure wireless system intergrated with an existing network. So far I'd decided to use 802.1x secuity with a Radius enabled server over a Novell backbone. My question is: does Novell still support this…

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• Can you disable the wifi on the BT Voyager 2000 wireless modem?

  - by Paul D. Waite

  Can you disable the wifi on the BT Voyager 2000 wireless modem? I use an Aiport Extreme for my wifi (on 802.11n), so I’d rather have the modem’s wifi switched off (I’m starting to think it might be interfering with my Aiport’s wifi signal).

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• Computer Networks UNISA - Chap 12 &ndash; Networking Security

  - by MarkPearl

  After reading this section you should be able to Identify security risks in LANs and WANs and design security policies that minimize risks Explain how physical security contributes to network security Discuss hardware and design based security techniques …

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• Need Drivers for D-link DWA 525 PCI Wireless adapter

  - by Hari

  I'm using Ubuntu 12.10 32-Bit Edition. I have racently purchased D-link DWA 525 PCI Wireless Adapter. But i can't find the drivers for the adapter. I have been searching in internet for a while. Tried many options, including ndiswrapper. When i run lspci command, it…

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• Wifi hotspot to connect to Android using non-AP supported cards

  - by 3l4ng

  I'm running Ubuntu 13.10 64b on a Dell Inspiron N5010. My wireless device (found using lspci) is Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01). I bought a new android phone and want to connect to Internet by using the laptop as a Wireless…

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• Wireless card disappeards when restart ubuntu

  - by Kristian Jones

  I used 'additional drivers' to install 'Broadcom STA wireless driver' and it returns an error. WIthin jockey.log it says the following numerous times. 2011-02-14 21:24:06,945 DEBUG: BroadcomWLHandler enabled(): kmod disabled, bcm43xx: blacklisted, b43:…

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