How can I Sniff a wireless network?

I am a consultant in the Carolinas and deal exclusively with the Cisco wirless equipment. I do alot of site surveys and installations and I usually try to scan for existing wireless AP's prior to survey start using Netstumbler or Mini-Stumbler. This is only effective if the AP's are broadcasting their SSID's. If broadcast is turned off, then Netstumbler cannot see them.
Has anyone used or does anyone know of another product that would allow me to sniff for AP's other than NetStumbler? Any and all information would be greatly appreciated.
David B.

I have both Air Magnet and Airopeek NX. Airopeek is an excellent tool and quite a bit more easier to navigate as it runs on your laptop. I like to use Airopeek NX to troubleshoot actual problems and Air Magnet when scanning for rogue APs. I have found that Air Magnet is able to pick up APs at quite a further distance.
Eric Schuller
Network Engineer
UNC Healthcare

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How can I delete a wireless network from my MacBoork Ai

How can I delete a wireless network from my MacBoork Air.
I had set up a WEP Network but I need to set up a WPA (personal) network now and i cant seem to change the WEP network to a WPA2 network.
Thank you for any help you can provide me.
LShaps

The MacBook Air will autodetect WEP and WPA security changes and should allow you to reconnect again. If the password stored in the Mac is wrong, it will ask you to enter it again.
With that said, to forget a network do the following:
- Go to the Apple Menu and select System Preferences
- Click on the Network icon
- Highlight the Airport / WiFi entry (sepending on 10.6 vs 10.7)
- Click the Advanced button at the bottom
- Make sue the Airport / WiFi tab is selected
- Click on the network name you want to forget
- Press the minus button at the bottom of the list.
You may also want to consider restarting if you are having this issue.

How can i access my wireless network?

how can i access my wireless network at home?

Does your iPad see your WiFi network - Settings>WiFi>Tap your network name, enter your password and tap join.
If the iPad isn't seeing the network, try rebooting the router - unplug it for about 30 seconds and then plug it in again.

HT4259 How can I extend a wireless network from a 2Wire modem by usingan Airport Express? Years ago I could do this just by plugging in the (old) Airport Express. TIA Travelmonger

How can I extend a wirelss network from a 2Wire modem using an Airport Express? Some years ago using the old Express I was able to do so simply by plugging on the Express witha minimum of tweaking. Still the same?
TIA
Travelmonger

Still the same?
Unfortunately, no.
Apple's newer "Extend a wireless network" feature was designed to only work with other Apple products, so it would be extremely unlikely that it would work with a 2-Wire device if you plan to extend using wireless only.
If you plan to connect the AirPort Express to the 2-Wire device using a wired Ethernet connection, the Express can be configured to provide more wireless coverage that way.

How can I remove old wireless networks as a choice on my iphone?

I just picked up a new time capsule and i'm using my old time capsule to backup just one mac, just not wirelessly. I need the rest of the Macs and Iphones in the house to no longer default to the old time capsule. How can I delete networks I no longer use?

You're welcome.
This link provides instructions.
http://kb.mit.edu/confluence/display/istcontrib/Mac+OS+X+-+Remove+Preferred+Wire less+Networks

How can I extend a wireless network with my AirPort Extreme Base Station?

Today I purchased a brand new, dual-band base station to replace my Belkin N router, as I have had a handful of firewall, coverage, and other networking problems in my house lately. First off, I really like this router and it was very easy to setup. My MacBook Pro could use both bands and established a 300 Mbit/s link very quickly. After tweaking various settings to my liking, I was also able to maximize the connections on many of my non-Apple machines and devices. I noticed that the range of its network was better than my Belkin's, but unfortunately, it failed to completely saturate the area sufficiently. Since the Belkin still works well enough, I was hoping I could bridge them together one way or the other.
The Belkin router does not support any bridge mode that I know of, but the AirPort Extreme should be able to join a wireless network and then extend that over WiFi and Ethernet, correct? I would like to place them at opposite ends of my home so I can get strong WiFi signals everywhere inside. However, when I try to get the base station to connect to my preexisting WiFi connection, it tells me that I can't extend the network and fails to join.
So is this possible? And if it is, how would I go about setting it up? I know it would probably be easier if I had a simple range booster such as an AirPort Express, but I didn't buy one while I was at Fry's since I hoped I could make use of the older Belkin. This is its product page, if needed. Thanks for any suggestions.
-MacUser

The Belkin router does not support any bridge mode that I know of, but the AirPort Extreme should be able to join a wireless network and then extend that over WiFi and Ethernet, correct?
Sorry, but no. The AirPort Extreme Base Station cannot "join" a network like the AirPort Express or Time Capsule, but you wouldn't want to do this anyway because in this configuration these devices will only perform as wireless clients ... not routers.
Instead, the AirPort Extreme can either be extended or can extend another 802.11g or 802.11n AirPort ... or a very very few non-AirPort devices.
One option for your Belkin would be to connect it to the AirPort Extreme by Ethernet but this may not meet your requirements or be a desirable situation. Otherwise, you would need to get another AirPort to extend your current one.

How can I expand my wireless network with a Time Capsule and Airport Express?

My entire house is wired for ethernet access (2 floors). I have a Time Capsule on the 2nd floor that reaches the entire house except for one room.
In this one room I have an ethernet port plugged into an Airport Express.
The problem I encounter is that I have two separate wifi networks with two separate names. I realize I can extend the wireless network on the 2nd floor to the 1st floor but I can only do this wirelessly to my knowledge, and the entire problem is that the signal doesn't reach the front room. Also, there is really no place in-between that the AE can be placed to extend the reach. The building is concrete and steel, I think that has a lot to do with the problem.
My question is: Can I have two wireless routers (connected to the same home network via ethernet) broadcast the same wifi network? I also have a SONOS system that further complicates things, I'm afraid. Would it help if I drew some sort of diagram?
Thanks!

Your network is not working as you describe.. or I have misunderstood the layout..
What is the broadband type? Modem is where? What is the main router?
From your screen shots the main router is the airport express that covers one room which seems wrong.
Why isn't the TC the main router? or both bridged.. if you go back and look at the apple document.. one or both apple routers are in bridge mode..
You are having issues with setup .. half of which is caused by v6 airport utility.
What OS are you running? Please install 5.6 utility.. do it.. do it now!!
Easy for Lion.
http://support.apple.com/kb/DL1482
Messy but possible for ML.
How to load 5.6 into ML.
1. Download 5.6 for Lion.
http://support.apple.com/kb/DL1482
Click to open the dmg but do not attempt to install the pkg.. it won't work anyway.
2. Download and install unpkg.
http://www.timdoug.com/unpkg/
Run unpkg on the desktop.. it is very simple.. drag the AirPortUtility56.pkg file over to unpkg.. and it will create a new directory of the same name on the desktop.. drill down.. applications utilities .. there lo and behold is Airport utility 5.6 .. drag it to your main utilities directory or just run it from current location.
You cannot uninstall 6.1 so don't try.. and you cannot or should not run them both at the same time.. so just ignore the toyland version.. the plastic hammer.. and start using 5.6.. a real tool.

How can I extend my wireless network with the Time Capsule?

I recently bought a Time Capsule and set it up, backed up all my data, etc. It is currently plugged in to my AT&T Uverse wireless router via a LAN CAT5e cable. I am wondering if it is possible to wirelessly extend my preexisting network with the Time Capsule so I can move it somewhere else in my house where it can still pick up the signal but extend it. And if possible, how so? Or does it ALWAYS have to be wired'connected to my router for the internet to work?
Thanks in advance.

I am wondering if it is possible to wirelessly extend my preexisting network with the Time Capsule so I can move it somewhere else in my house where it can still pick up the signal but extend it.
Sorry but no. Extending using only wireless would require that the Time Capsule connect to another Apple router that is producing the wireless network.
Another way of saying the same thing is that you must have two Apple routers to be able to extend the signal wirelessly.

How can we put our wireless networks on a schedule

We have two 5508s in a boarding school environment and about 5 wireless networks. Administration wants to know how can we shut down the student networks @ 11:30pm and then have them come on @ 6:00am. Othern than doing it manually is there another way?

create a time based ACL and apply it on the switch that is connecting to the AP. Keep the following in mind, LWAPP is UDP, the Data is 12222 and LWAPP Control is 12223.
With ACL block the data path but keep the control path up so AP(s) keep joined to the wlc.
time-range STUDENT
                  periodic weekends 00:00 to 23:59
                  periodic weekdays 00:00 to 05:59
                  periodic weekdays 23:30 to 23:59
access-list 101 deny udp any any eq 12222 time-range STUDENT
access-list 101 permit ip any any

How can i extend a wireless network with time capsule

How can i extend an existing wifi verizon wireless network with time capsule? the router is connected on the bottom floor. want to boost the signal to a home office on the top floor, four flights up. connect time capsule via ethernet cable to iMac on 4th floor? Do I have to start a second wifi network or can I set it to just boost the one I have? thank you

How can i extend an existing wifi verizon wireless network with time capsule?
It all depends on what you mean by "extend".
If you plan to "extend" by connecting the Time Capsule to the Verizon router using a wired Ethernet cable, this can be accomplished.
If you were hoping to connect the Time Capsule to the Verizon router using wireless only, unfortunately the Time Capsule and Verizon products are not compatible for that purpose.
Check with Verizon to see if they offer an "extender" or "repeater" that could be located very close to the Time Capsule.
This would provide both more wireless coverage and also allow you to connect the Time Capsule using an Ethernet cable from the "extender" or "repeater".

HT202663 how can i block another wireless network?

I've noticed that at periods throughout the day my network slows down considerably. I did a wireless diagnostics report and found an external wireless network with a TW (Taiwan) country code is nearby. I'd like to block it. How can I do this?

You may want to check if the adjacent networks are using the same WiFi channel you are using.
Try a utility such as iStumbler.
For 2.4GHz frequences, you want to be on a channel all by yourself and 5 channels away from the strongest signals. That means channels 1, 6, or 11 typically. Outside the US, some countries allow channels 12 & 13, so you may play different 5 channel apart games.
The 5GHz frequencies are better spaced so as long as you are not using the same channel, all is OK.
If you are using channels that conflict, then you can get interference that may slow down your WiFi.
Another approach is to make an Ethernet connection instead of WiFi, and see if your performance improves. If it does, then it may be WiFi interference. If it does not improve, then it may be how fast your Internet connection is working.
I know a lot of people using Cable based broadband that see performance slow down when school lets out and the neighborhood kids start watching YouTube videos and chewing up the shared neighborhood bandwidth.

How can I create a wireless network in my office for my itouch?

I am in an office Windows environment with a G3 Mac that is connected to the internet via the Ethernet port. I can get to the internet with my Mac through a Proxy server. I have tried to setup up Airport to get through the firewall without any success. Is it possible to create a wireless network for my itouch if I install an Airport card in the Mac, start Internet Sharing and install Airport Express? I have no experience with the Internet Sharing options in OSX. I am assuming that my Mac with an Airport card would pass the internet connection to Airport Express. Airport Express would then create a wireless network for my itouch to connect to the internet. Any advice is appreciated as I would really like to get to the internet with my itouch.

You don't need the AirPort Express to do this.
You can set your Mac to share it's wired connection over the wireless port and the iTouch can connect directly to the Mac.
You could also do it with the AirPort Express, but you don't need to - it's overkill for what you've described.

How can I extend my wireless network using Airport Express and an Airport Extreme on BT Infinity?

I have BT Infinity and I am using the Time Capsule with Airport Extreme as my router. Working well (even on wireless). I want to extend the wireless network with an Airport Express, but I cannot work out the settings necessary in Airport Utility. I am using Mountain Lion 10.8.2 on a Mac Pro. Please help!

BT,
I've read several of your posts, thanks for taking the time to share your wealth of knowledge.
I'm in a situation similar to the one described by 'scoutusmaximus'. Seeking the flexibility of a standalone router, I finally upgraded my 4-yr old ATT DSL gateway (modem+router) to a Comcast standalone modem + the ASUS RT-AC66U: http://www.asus.com/Networks/Wireless_Routers/RTAC66U/
Typically, I stick with all things Apple but the ASUS router seemed fairly superior to the current-gen base station (on paper, anyway; time will tell when it comes to performance) so, for once, I jumped ship. My plan was to extend the ASUS wired/wireless network using my TimeCapsule and 2 Airport Expresses in bridge mode, however, a google search turned up several unhappy customers that claim those devices don't play well with non-Apple routers, especially when it comes to 'extending' a network.
Questions:
1. Can I successfully extend the wired/wireless network created by the ASUS router using the 3 airport devices listed above w/out negatively impacting performance? I'd rather have 1 wireless network as opposed to creating a new wireless network with the TC and then extending it with the AP Expresses... though I'd consider that option down the line if it came to that.
2. Will the LAN ports on the TimeCapsule remain functional?
Btw, my house is wired so, I can reach all 3 devices via ethernet cable coming off of a central, managed switch. Supposedly, you only lose the LAN ports on the TC if you extend wirelessly.
Any advice would be appreciated.

I have a mid-2010 iMac and just purchased a 2TB TC, can't join existing wireless network with AC standard so attached to iMac via ethernet with TC wifi turned off. How do i access TC now? not showing up in disk utility or on desktop. working fine with TM

I have a mid-2010 iMac and just purchased a 2TB TC, I just found out that it can't join existing wireless network with new AC standard so attached to iMac via ethernet with TC's wifi turned off. How do i access TC now? not showing up in disk utility or on desktop. It is working fine with TM. My cheeper seagate drives etc kept crashing, so i didnt trust cheeper back up options anymore. Connected those drives to TM via firewire and could see the drives and access them.
Also, I didn't want to bridge TC with my new fios router that I paid 100 dollars for, to get N speed and also paying 10 dollars more a month for fast speed. I heard that bridging slows down everything and then there can be port issues with mail etc. I connect to the internet via airport only and it is pretty fast. Getting over 50mbs downloads and over 30mbs uploads. Plus everything in my home it connected to my fios router, airport express for music streaming, two apple tvs, vuezone camer system. I really didn't want to monkey around too much with my system. But are there other options to connect the new TC. Can't find info anywhere for this and called apple who gave me the info above. after hanging up, i see that i cant access my TC and I am wondering if i would have to reset it to turn wifi on again to make changes to the drive, turn off blinking light or repair it in disk utility if it should become corrupted.
For other with similar issues i did solve some other problems: when i connected it to my ethernet port on my iMac wifi stopped working. Found that I had to turn off the ethernet in the system>network screen, but then TM didn't see the TC so i restarted after changes and then it saw it.
Now a rant. I can't believe in this wireless age that Apple would make a product that cant join a wireless net work. The apple rep said i could return it and look for the previous TC that would join an existing wireless network. Are we going backwards?
Thanks!
lennydas

Ok... it is getting a bit clearer but there are still some questions.
I connect to the internet via airport only and it is pretty fast.
I was assuming airport in this statement in your first post meant the TC or the Express.. but I now realise we are still in the mass confusion stage where apple calls everything wireless an airport. So what you mean is the airport internal card of the computer??
Also, I didn't want to bridge TC with my new fios router that I paid 100 dollars for, to get N speed and also paying 10 dollars more a month for fast speed. I heard that bridging slows down everything and then there can be port issues with mail etc.
I think this is mistaken.
Putting the TC in bridge mode plugged into your FIOS will not slow the network.. nor will it cause mail or port issues.. in bridge the TC is just a fancy WAP and switch plus the network hard drive.
If the computer is close it will be faster than the FIOS.
You can run both wireless networks with different names.. so it is clear which is which. But you can also setup roaming so the computers themselves pick which is the best wireless.
I tried extending the wireless net work and tried joining wireless network, but the TC kept crashing and I had to keep resetting the TC. the Apple support person said these, extend wireless network and joint wireless network, are no longer a connection option with the new TC because of the new AC protocol.
Thanks again!
You cannot extend to a non-apple wireless router.
You cannot use join a wireless network because when you do the ethernet ports will be cut off.
But that has not changed.. I don't think Apple support is correct.. there has been no change with the AC model.. it is simply a fact that apple routers do not work in join wireless mode other than as a dumb client. The same applies to AC as to the earlier version.. but I have asked another person to check this.
Join in the express is the only apple router that still allows an ethernet connection.
For now you best use of the TC is bridged to the FIOS. Wireless you can sort out between several options.

How can I not allow wireless access when extending a network?

I have two Airport Extremes, one extends the network of the other. How can I not allow wireless access on the remote Extreme when extending a network? I could do it with Airport Utility 5.6, but not with version 6 on Mavericks.

Correct. Use another Mac or even a PC running Airport Utility 5.x. Once you have the extending Extreme configured the way you want, Mavericks will not change the setting on the extending Extreme.

How can I Sniff a wireless network?

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