NAC Out-of-Band Deployment for wireless networks

I am evaluating the NAC appliance for my wired and wireless users. I have read that the only way to deply NAC for wireless is in-band mode but it looks like the following link says that it is possible to deply NAC for wireless networks in-band or out-of-band mode:
"NAC Appliance can be deployed for WLANs as an in-band deployment for full-time endpoint scanning or out-of-band within a central site for periodic scanning to confirm posture compliance. The NAC Appliance server performs authentication, posture assessment, and remediation. The server securely controls authenticated and unauthenticated user traffic by managing traffic policies based on protocol/port or subnet, providing bandwidth policy management based on shared, or per-user bandwidth, or using time-based sessions and heartbeat controls. (Figure 1)"
http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps6521/prod_brochure0900aecd80355b2f_ps6128_Products_Brochure.html
Does anyone know if it is possible to use NAC out-of-band deployment for wireless networks? If you can point me to some documentation it will be appreciated.
Regards

Thanks Robert.
In my case I am planning to deploy a central NAC appliance at the main office to control some branch offices and local wired users at the main office. The NAC appliance will operate in out-of-band mode. But for wireless users at the main office I will need an aditional NAC appliance operating in in-band mode, is this correct?
Regards

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If there are lots of other networks in the area you are probably getting a lot of RF interference.
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Hi
Can anyone offer any advice please.
My 4s has developed an wifi issue. It cant scan for wireless networks My bluetooth is intermittent also.
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I am under a two year contract with Vodafone and went into their branch at Merry Hill, Dudley today and they failed to help me saying it was nothing to do with them.
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There are a lot of complaints about this (a LOT), yet Apple continues to stick its head in the sand instead of owning up to providing shoddy hardware and/or glitches software. They certainly don't want to be in the business of replacing phones, so they put the onus on us by charging $200 for a replacement... such a deal for Apple!
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TS1398 iPhone can't search for wireless networks. Any suggestions?

My iphone 4S displays a message saying that it, "Can not search for wireless networks. Any suggestions? I've turned it off, reset the network settings, taken out the sim card, turned on/off airplane mode . . . what else can I do? When I've phoned the help line I've been waiting to get through for over an hour!!

Try Resetting Network Settings from Settings > General Reset.
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4 Reset All Settings
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iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
iOS: Recommended settings for Wi-Fi routers and access points http://support.apple.com/kb/HT4199
Additional things to try.
Try this first. Turn Off your iPad. Then turn Off (disconnect power cord) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
Change the channel on your wireless router (Auto is best). Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
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How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
If none of the above suggestions work, look at this link.
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
Fix Slow WiFi Issue https://discussions.apple.com/thread/2398063?start=60&tstart=0
Unable to Connect After iOS Update - saw this solution on another post.
https://discussions.apple.com/thread/4010130
Note - When troubleshooting wifi connection problems, don't hold your iPad by hand. There have been a few reports that holding the iPad by hand, seems to attenuate the wifi signal.
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

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Hello there, MattBrear.
The following Knowledge Base article provides some in-depth steps to try in resolving your wi-fi connectivity issues:
iOS: Troubleshooting Wi-Fi networks and connections
http://support.apple.com/kb/TS1398
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Could this be the problem?
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The password for wireless network was changed. Airport keeps trying to sign in automatically with old password and won't let me put in new password. Any ideas?

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Here is a solution that might help. I too had the unhappy message of " could not scan for wireless networks". Thinking it was a wifi hardware problem or software problem made me give up until an idea hit me. Maybe it was an app. that was giving me problems. So I deleted an app. I had , which was Devicescape Easy Wifi, and did a reset network setting. This solved my problem. So look at your app. list and delete any wifi app. and see if that works.

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I'm working on getting wireless running on my Thinkpad T40 with an Atheros AR5211 a/b adapter. The ath5k module loads automatically, and the dmesg output seems to indicate that it is properly detecting the card:
% dmesg|grep ath
[ 4.767272] ath5k 0000:02:02.0: registered as 'phy0'
[ 5.042780] ath: EEPROM regdomain: 0x61
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[ 5.478553] ath5k: phy0: RF2111 2GHz radio found (0x23)
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% ip link show wlan0
4: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
link/ether [redacted] brd ff:ff:ff:ff:ff:ff
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Last edited by Gavster (2014-01-15 02:57:56)

I got a chance to play around with this a bit more, trying wireless_tools this time:
% sudo iwlist wlan0 scan
wlan0 Failed to read scan data : Resource temporarily unavailable
As before, the load average then continues to increase until the system becomes unusable. This would lead me to believe that I have a driver or kernel issue, since that would be the commonality between the two tools.
The other interesting output is this:
% dmesg|tail
[ 280.973316] ath5k: phy0: too many interrupts, giving up for now
[ 280.989985] ath5k: phy0: too many interrupts, giving up for now
[ 281.004548] ath5k: phy0: too many interrupts, giving up for now
[ 281.019983] ath5k: phy0: too many interrupts, giving up for now
[ 281.034543] ath5k: phy0: too many interrupts, giving up for now
[ 281.049984] ath5k: phy0: too many interrupts, giving up for now
[ 281.064543] ath5k: phy0: too many interrupts, giving up for now
[ 281.079983] ath5k: phy0: too many interrupts, giving up for now
[ 281.094544] ath5k: phy0: too many interrupts, giving up for now
[ 281.109122] ath5k: phy0: too many interrupts, giving up for now
Looking at longer tails, this message repeats many many times, interspersed with:
net_ratelimit: 321 callbacks suppressed
With various values for 321. Some interrupt getting stuck would make sense for why the load average blows up, but I really don't know how to fix that ...
I verified on the ath5k site (http://wireless.kernel.org/en/users/Dri … rted_Chips) that my chip is supported:
% lspci
02:02.0 Ethernet controller: Qualcomm Atheros AR5211 Wireless Network Adapter [AR5001X 802.11ab] (rev 01)
Any tips for what might cause a stuck interrupt like that?

TS1559 could not scan for wireless networks.

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If no change after powering the iPhone off and on and/or after a reset which is similar to a computer restart, try resetting network settings on the iPhone at Settings > General > Reset.
If no change after that, try restoring the iPhone with iTunes as a new iPhone or not from the backup but update the iPhone's backup immediately before doing so for later use.
If no change after restoring the iPhone with iTunes as a new iPhone or not from the iPhone's backup, the iPhone has a hardware problem.

Iphone 4s cannot scan for wireless networks

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NAC Out-of-Band Deployment for wireless networks

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