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Wireless Networking

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Wireless networking is anything related to the transfer of data between two (or more) devices without the use of a physical connection, ranging from getting advice on a new Bluetooth headset to configuring sophisticated enterprise level networks.

I am seeing some weird MAC flapping being reported by my cisco switches.  When looking at a MAC table it would shows the same MAC on two different VLANs.

Any ideas
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On an airport fake "free wifi" network, would you be safe if using VPN?

Two hazards come to mind:

1) The initial login page could be malicious to take advantage of any drive-by boobie-traps.  For example, when the fake auth page phishes for xfinityWiFi or ATTwifi credentials, it could include malicious code attempting to take advantage of un-patched vulnerabilities   Yes, you could randomly happen across a malicious page on the internet, but why concentrate your risk of doing so by deliberately connecting to a malicious network?

2) Maybe your legit NAT router blocks netbios or other ports that maybe the malicious router might not?   Maybe this is less of an issue in 2016 with the default windows firewall blocking all inbound except permitted ports ?

So, if you had tunnel bear VPN on your laptop and were at the airport, would you feel safe (and be safe) using malicious wifi?

Thanks for all thoughts on this matter,
Mike
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i have Motorola MC3190 PDT and i need to use connect with my laptop with WiFi. please show me how can i setup WiFi between PDT and laptop.
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I'm trying to get internet access at the local high school for a students MacBook Pro with El Capitan. She can connect to all other wireless connections and get internet access. However when she connects to the school wifi which has WPA2 Enterprise, she enters her user name and password and makes the connection, or at least it says "connected" but when she tries to access a website using IE or Chrome it will not display the page. There is no distinct arror message and all other wireless connections work fine.
I have reset the networking on the MBP by removing the "System Configuration" folder under System Preferences and restarted the computer and that didn't help.
Unfortunately I can't have the school restart the router and none of her friends have a problem with getting internet access. So I'm looking for other suggestions for what I should be checking out.

Thank you,

Craig
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I have wireless users authenticating to our Sonicpoints with their AD credentials through a RADIUS server with no problems.

I have the Sonicwall SSO agent installed and connecting the Sonicwall and our DC.
 
I have our Sonicwall sending logs to a SysLog server with no problems.

However I cannot see any authenticated users traffic appearing in the syslogs?

Any help would be greatly appreciated.
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actually a gsm/gprs server is connect with the internet of sim card
and i want to access that server from anywhere but i am unable to communicate even i have the public ip and port number of that server .
someone say the apn of the sim is shared that why it can create some problem
is there any solution to access the server
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Hello EE
Has anyone ever configured a Cisco 2504 wireless lan controller with a netgear gs724t.
here is my situation on a cisco 3650 the controller works perfectly fine:vlans,trunk ports,and all configs are good.
now i am moving  the controller to a netgear gs724t switch,i went ahead and created the vlans,did the pvid, and vlan membership.i also enabled routing on the switch. my issue is that i can't ping or hit the wlc management page. any input would be highly appreciated.. thanks
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Hi Guys,

Just a quick question. If I disable the 802.11b data rates on my access point the cell would obviously shrink somewhat. Can this loss be overcome by increasing the power on the AP either manually or letting an auto algorithm kick in like RRM? Does anyone know how much more power I would need roughly? Understand this would depend on the environment.

Thanks
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I have about 100+ stored Wifi profiles with passphrases on my current laptop. Each time I got to a hotspot for the second time, my laptop connects automatically.

I bought a new laptop. How can I transfer all of these Wifi profiles to the new laptop?
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Hello,

I have a question for this access point: DWL-2600AP. I want to configure a guest network, but I could not find this option. I found that there is a option Virtual Access Point (VAP) where is configured the default network, but when I added a second Guest network, i just does not work. I checked the manual for the devices and it says that I should configure a VAP and then connect it to a RADIUS server, but with no clear instructions.

Can someone help me on this ?Does this device support guest network, and how can I configure it in some simple steps?

Thank you
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I have a motorolla wireless router that was given by the ISP for my house.  I have another Netgear wireless router that I want to use in another area of the home.  Is there a way that you can  connect these 2 routers together wirelessely so I can get better signal when using devices in other areas of the home?
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Hey guys,

We have a open floor plan 4000 sq ft office with 50 users who strictly use WiFi. We are in a saturated office building, and currently using 2 ubiquiti AC routers with a 100mb fiber inet line.

We are still suffering from dropped signals and slow performance. We ran a spectrum scan, and i do see a lot of WiFi networks. I chose one that is not used as much (1 other router on that network it seems) yet we still suffer from issues.

Is there a more enterprise WiFI setup i can go with to help solve these issues??
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Hi experts,

I have cisco controller 2500 and cisco access points and through out the company all the laptops can connect with no issues.

I have one laptop that would not connect to the wifi. I tried multiple login and it says windows was unable to connect to the SSID.

What could be the issue?
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I have a customer with a special problem. They have very tight security in the wifi network, nothing gets on it without installed certificate. This rules out wifi-connected devices as printers, projectors and items like Miracast.
They would still like to send audio/video to a projector - while maintaining internet connection on the laptop.
I they could live without internet it would be easy as pie to connect a Miracast with an ad-hoc connection. But that is not what they want.
So I have as I can see it at least two choices, but do not know if either will work:
1. Use two different wifi connections at the same time (could be possible with an extra wifi-dongle, but have never tried). That is, the native wifi connected to the internet wifi, the second one as an ad-hoc to a Miracast.
2. Use a different solution all together, but I have found no good alternative.

To make it even more complicated, there will be a lot of different laptops connecting to the projector, and not all of them have HDMI out. And that is also why no software installation is acceptable. It should work with no hardware/software installation, on at least Win 8 and 10. If using a hardware to send a/v to the projector there have to be at least HDMI and VGA(plus sound) inputs, preferably connecting to a wireless HDMI only reciever.
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Hi Guys,

We have a rather interesting issue occurring with our wireless network here. I will provide some background on the setup. We have a 100MB WAN link ---> Cisco 3825 ---> HP 1400 Procurve Switch ---> 4 Unifi AP Pro's. From these AP's we have 2 SSID's being broadcast, HIP and HIP-GUEST both on 2.4 and 5Ghz. The AP's are placed around a large office in a square shape with the channels set to 1, 6, 11, 6 respectively and support on average 100 clients of varying make and model. Each AP has on average 20 - 30 clients connected and each client is capped at a max 2Mpbs. The Utilisation on the router port is only around 20% most of the time.

We are seeing some rather interesting statistics on our monitoring software where the OutDIscard percent of each virtual interface is extreamly high, in excess of 80% most of the time for all AP's and the physical WiFi interfaces report a high number of In and Out packet errors.  Does anyone have any insight as to what might cause this? We have changed out the switch, played around with RSSI and even tried lowering the TX power of the AP's to match the weakest device but all these didn't seem to have much of an effect.

I have attached some files to give a better understanding of what is going on. We are in a very congested area for Wifi, roughly 600 neighbouring SSID's as reported by the Unifi management software.

If anyone can help out with some suggestions to troubleshoot this or any explanation as we are pulling our hair …
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I am trying to separate my wired and wireless connections onto thier own VLANs.  The primary reason for this is that I only want wired connections accessing servers and VPNs.

This is what I want it to look like...

LAN design
I have two VLANs...

ID 1 - 192.168.1.0/24 - wired

ID 2 - 192.168.2.0/24 - wireless

DHCP for both VLANs is running from the router.

Wired connection are working correctly.

The problem is that, although I have configured the SSID, radio and bridge-group for VLAN 2, non-wired connections are receiving IPs from the VLAN 1 subnet.

It appears there is some cross over between VLANs over the bridge.

I have attempted to change the native VLAN on interface Wlan-GigabitEthernet0 of the router but it stops the AP's BVI1 interface from getting an IP.

It has been suggested that I move the VLAN2 DHCP scope from the router to the AP.

Can someone suggest what the recommended and best practice would be to achieve my wired and wireless separation please?

RTR config (redacted)...

ip dhcp excluded-address 192.168.2.1 192.168.2.9
ip dhcp excluded-address 192.168.1.1 192.168.1.64
ip dhcp excluded-address 192.168.1.127 192.168.1.254
ip dhcp excluded-address 192.168.2.127 192.168.2.254
!
ip dhcp pool LAN_pool
network 192.168.1.0 255.255.255.0
dns-server 192.168.1.9
default-router 192.168.1.9
!
ip dhcp pool WiFi_pool
network 192.168.2.0 255.255.255.0
dns-server 192.168.2.9
default-router 192.168.2.9…
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I have a Sonicwall NSA240 with 8 SonicPoints.

The WLAN works fine with with just one WLAN zone and one Sonicwall Provisoning Profile applied to the Sonicpoints.
 
I have created another wireless Zone called Corporate, a Subinterface for Corporate, a VAP for Corporate and VAP Group with just Corporate in it.

I have assigned one of my Sonicpoints to use the VAP Group, it broadcasts the SSID and clients connect and authenticate with no problems.

Unfortunately, no traffic flows. The client does not get an IP address for that  subinterface and even when I give it a manual IP address still nothing flows.

I have allowed all traffic in Firewall Access Rules.

What am I missing?

Any help wouldbe greatly appreicated.
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We use a 5508 Wireless Controller. Currently, when the controller goes down for maintenance, our APs drop clients and basically wait for the controller to come back up.

Is there a configuration option within the controller web UI that will instruct the APs to go into an autonomous mode if the controller is unavailable?
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We had two WS-SVC-WiSM-1-K9  WiSM modules in our 6509, our primary module failed and is operating off the secondary one. We purchased a brand new WS-SVC-WiSM-1-K9 and I'm wondering if I can just plug in the module and it will take the configuration from the 6509 core switch?

Any advise would be very helpful.
Thank you Experts!
Ron
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I have successfully been using a Linksys E1200 router for several years. A friend recently offered me a used Linksys E4200 router as an upgrade. It worked fine for my friend as of a week or two ago.

I can't get the E4200 router working. I can ping the router and access the settings from my computer, but I can't get an IP address or ping anything past the router. I've done a hard reset, which takes me back to the setup page for the router settings. However, I also noticed that in Network and Sharing Center it shows the old network name (the name my friend had created) even after 10 hard resets.

I've switched back to my old router which works fine, so I know the issue is with the new E4200 router. I'm using the exact same Ethernet cables for both routers, just switching from one to the other.

I don't think the MAC address is an issue, but I've set both the old one and new one to clone my PC's MAC, and the old one works while the new one doesn't.

I updated the firmware of the new router, but it didn't work before or after updating.

I've run out of ideas, so I'd appreciate any help. Thanks!
0
We are using WLC 2504 with 2 Access Points AIR-CAP2702I-D-K9. I'm facing some slow performance issue with wifi enabled clients(Macbook Pro). As all the clients we use are Macbook Pro laptops which supports 802.11ac, I created a new WLAN(SSID) with Radio 802.11a only to force all the laptops to use 5Ghz band to check what it makes difference. The SSID is not visible as a available network at the client if the SSID radio is set to '802.11a only' though it is marked to broadcast ssid. '802.11ac' is also enabled in the network at '802.11a/n/ac' sections of Wireless.

Does this mean my Access Points don't support 802.11ac?
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People,

I'm just a server support engineer so I have no clue in networking, so I need you help to assist me in what software or technology to find which IP address in my network is consuming the largest bandwidth ?

I have extended the network bandwidth for Guest wireless from 10 MBps to 20 MBps but it is still maxed out.

Note: all of the network switch and WLAN AP are Cisco brand, the Firewall is Juniper brand.

If possible the solution is the freeware ones or not more than $250 in terms of software license.

Thanks
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Hey All.

Went to setup a school other day.

Their complaints were running out of DHCP addressing.

Current setup

Xyzel firewall running one IP scope 10.0.16.x/24

800 Students

WAPS (Engenius) all running to firewall on same IP.


Since low budget, how do we segregate to sub IP subnets and DHCP blocks by classroom.

I proposed this

master ip 10.0.16.x
classroom 1 192.168.1.x
classroom 2 192.168.2.x
classroom 3 192.168.3.x
and so on...

Can this be done with VLAN (SAY NETGEAR MANAGED SWITCH AND MULTI DHCP SCOPE)

Thoughts?
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I've set up two wifi access points to give good access in a house. They are both connected via cable to the same switch and are configured with identical ssid and identical encryption type and key. APs are made by different manufacturers. No wds is used. Quite often it seems like mobile phones (Samsung) loses connection to the network. Phones are set to automatically connect to the ap with the best signal. Turning wifi off and on brings the connection up again, but it is a bit anoying...  Any ideas how to fix?
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Does anything think it's possible for the scammers to identify your public IP and then your LAN devices based on your phone number?  Just wondering what their capabilities are for my own edification.

best
Craig
0

Wireless Networking

17K

Solutions

19K

Contributors

Wireless networking is anything related to the transfer of data between two (or more) devices without the use of a physical connection, ranging from getting advice on a new Bluetooth headset to configuring sophisticated enterprise level networks.