For questions about wireless networking, including any licensed or unlicensed RF medium used to provide point-to-point or point-to-multipoint network links.
4
votes
2answers
84 views
AP3602 with rcvk9w8 image throws “%CDP_PD-2-POWER_LOW: All radios disabled”
We recently bought some new AP3602Es from Cisco.
I'm trying to understand why this AP will not turn on the radio when we are sending enough power to the AP. I'm using inline power from the switch, ...
2
votes
1answer
48 views
Difference between RREQ ID and DestSeqNum in RREQ packet of AODV protocol?
What is the difference between RREQ ID and Destination Sequence number (DestSeqNum) in RREQ packet of AODV protocol?
DestSeqNum in RREQ packet is used for a reverse route maintaining and should be ...
2
votes
1answer
54 views
Setting up a network that requires http authentication [closed]
I have seen networks (e.g. in airports and hotels) that do not require a password to allow your mobile device to actually connect to the wireless network, however when you try to navigate to any ...
0
votes
0answers
22 views
Wildcard Cert on WLC 5508 for WebAuth [closed]
I'm having issues getting my end devices trusting the WebAuth redirection. We used a wildcard cert for my organization on the WLC and am getting a "Certificate Warning" from browsers. Windows ...
2
votes
0answers
55 views
Optimising a Series Asymetrical Wireless Radio Connection
I have a series of radio sites are connected as follows:
A-B-C-D
Sites have the following radios:
A - AP- rocket m5
B -AP, STATION 2x nanostation
C- AP, Station 2x nano station
D-Station 1 x ...
2
votes
1answer
132 views
Securely sharing access across subnets with point to multipoint wireless
I might be over thinking things, but I'm lost. I'm trying to modernize our farm. Cable broadband comes into the farmhouse. Spread throughout our multi-acre property, we have a total of 7 buildings ...
1
vote
1answer
102 views
Setting up a guest network with isolation
Many of the wireless access points and routers now come with guest based access. However, they place the users on the same network as the private network giving them access to everything.
Do I need a ...
4
votes
2answers
126 views
Cisco commands to find rogue access point connected
Is there any methods in cisco switches (without using extra devices or softwares)to detect and prevent the unauthorised access points connected? I found a method using wireless lan controller (WLC). ...
0
votes
0answers
6 views
USB limits the speed of two network cards while doesn't limit the speed of two flash driver,why? [closed]
i used two network card to transfer data,it turned out that when one was working at a speed of about 2MB/s,the other one had little speed.they just couldnot work at the same time at high speed like ...
5
votes
1answer
61 views
Access Point over Wireless Extenders
Is there any real difference over placing Access Points over Wireless Extenders? How do you know when to use one or the other?
7
votes
1answer
59 views
NCS Cisco Prime licenses
I am almost 100% sure this is not possible, but just thought about double checking with someone with more expertise on wireless.
Suppose I have the following scenario:
WLC-1 with 25 licenses on ...
5
votes
1answer
91 views
Broadcasting wifi packets without a network
I have a question about Wifi, I couldn't find the answer anywhere.
Is it possible to send a packet over wifi without having joined any kind of network (ad-hoc or not)?
I would like to be able to ...
3
votes
1answer
86 views
WEP 152bit encryption key… Why?
As stated here:
http://documentation.netgear.com/wag102/enu/202-10120-01/v1/WAG102-4-10.html
and in many other sources, WEP key can be 64bit, 128bit (factors of 2) and 152bit length.
Factor of 2 ...
8
votes
1answer
164 views
High-Density WiFi & 2.4GHz Co-channel Interference design
The issue: CCI (Co-channel Interference) on 2.4GHz.
The Environment: 40 seats per classroom. Higher-ed, so extremely mixed client base.
AP-on-a-stick set to 24Mb lowest Mandatory data rate & ...
0
votes
1answer
46 views
Configure a Guest network on a Sonicwall TZ-205 N
I'm trying to configure a Sonicwall TZ-205 N to have 2 wireless networks. The first wireless network is a guest network which only has access to the internet (client isolation would be nice but is not ...
6
votes
1answer
149 views
Map the underlying structure of a VLAN
Is there any way to detect the underlying layout physical layout of a VLAN. For instance, to know whether two devices in the same VLAN are connected via the same wifi AP.
To clarify, this would be ...
2
votes
2answers
86 views
Ruckus ZoneDIrector frequently issues new IP addresses
We have a ZoneDirector 1100 appliance with 8 access points. Our software engineers are accessing the network via DHCP-provisioned IP addresses. Normally, whatever IP they land on is irrelevant to ...
7
votes
3answers
157 views
Is there an automatable way to backup the configuration from a WLC 2504 controller?
I am looking for a way to backup the controller configuration file via an automatic process. I've seen links to the web interface which appears to do a one-time tftp copy of the config to a remote ...
8
votes
2answers
220 views
Wifi TCP iperf throughput: 1 stream vs multiple streams?
In a WLAN iperf TCP throughput test, multiple parallel streams will give me higher throughput than 1 stream. I tried increasing the TCP window size, but I still cannot achieve the max throughput with ...
1
vote
1answer
81 views
AODV sequence numbers and loop prevention
I am learning about the AODV (ad-hoc on-demand distance vector) protocol. I saw a "sequence number" with a value like "A 46"; however, I don't understand why incrementing this sequence number can ...
7
votes
3answers
153 views
Cisco WLC: Per user authentication, many Vlans, few SSIDs
We have a simple problem. We want to restrict our wireless users to certain business websites based on their username when they login. We have many kinds of wireless devices: voip phones, cell ...
2
votes
0answers
42 views
Is there any software only 2G/3G mobile network simulator? [closed]
I am a beginner in networking and looking for a second generation mobile network simulator for a better understanding of cellular network components. Until now all I got are software bundled with some ...
1
vote
0answers
71 views
How can I protect my network from WEP access point [closed]
I have to add some kit to our network that involves a WEP access point to communicate with a remote outdoor display. The software communicating with the remote display will be on one of our ...
5
votes
1answer
114 views
Cisco WLC Mobility Group between 7.0.x and 7.5.x
Our customer has two Cisco WiSM(1) blades running code 7.0.x and wants to migrate to Cisco 5508 controller which have code version 7.5.x
The WiSM(1) blades are EoL and they aren't able to run newer ...
2
votes
3answers
128 views
Is router with high penetrate power WIFI really useful?
I always has this question in my mind.
For example, FM Radio Station and Radio player, strong signal from Radio Station could help, because Station --> player is one direction only communication. ...
-1
votes
1answer
52 views
Hardware config for private wireless network [closed]
I need some help with a wireless network configuration. I have a Windows laptop running IIS with video files on it. It's connected to a Netgear 6200 wireless router. There is no internet connection, ...
0
votes
2answers
125 views
What information does a router have about a computer? [closed]
like ip address, mac address, OS,...
I can't really seem to find a clear list on Google so I was wondering if anyone had any information about that.
Also, is there a way to prevent the router & ...
5
votes
1answer
126 views
Cisco wireless: APs with and without CleanAir
We have a Cisco 5508 wireless controller, Cisco Prime NCS, and the Cisco MSE. Our company needs three SSIDs, and each SSID must have a different Vlan. We have a mixture of Cisco 1242 and Cisco 3602i ...
6
votes
2answers
190 views
Wifi dropping randomly on Cisco AP-1602
I have a single Cisco AP-1602 broadcasting 3 SSIDs in a small office. Some of my team are complaining about random drops in network connectivity. (Over 3 days, I've had 3 different users complain ...
2
votes
1answer
135 views
Wireless coverage for 55 apartment complex
Hello a relative of mine is the administrator at a three story 55 small apartment complex. The residents stay there only during summer and they decided to setup a central internet connections for all ...
8
votes
1answer
107 views
Why does a Cisco AP keep its static IP when erasing NVRAM?
When I erase the nvram on a Cisco AP (1252 and 1262), the static IP assigned to interface BVI1 is not erased. When I do a show startup-config it says there is no startup config. But it always boots ...
1
vote
1answer
59 views
How to configure D-link Acces point to translate IP to desire network? [closed]
most of the office computers are connected to the net using wire or UTP cable, this net uses the range of IP from 10.30.11.1 to 10.30.11.99 , users can print and scan , scanned documents are copyed to ...
5
votes
2answers
119 views
Does a wireless access point has a role between two wireless devices?
When I send packets to another computer (both computers have wi-fi) is the AP required to communicate or can the other machine receive the information directly from my computer without the AP?
4
votes
2answers
155 views
How are multiple SSID's handled on same access point?
In case of multiple SSID's on some AP, how is the information forwarded?
I mean, the simplest AP's have just one wireless interface so its basically receiving trough one antenna and send it trough ...
1
vote
3answers
237 views
What OSI layer do Access Points operate on?
I am studying for CCNA. In my book I read that wireless access points belong to OSI layer 2. I did some research and I found that is correct. This raised lots of questions in my head so I hope I don't ...
2
votes
0answers
114 views
CISCO Wireless roaming: best practices
We are deploying a Cisco wireless network with a Cisco WLC 2504 controller and 2602 AP's.
Can you tell about your recommendation to deploy good L2 wireless roaming? What about such features as 802.11k ...
6
votes
1answer
172 views
Staging Many Lightweight Cisco AP's for Deployment
My organization is soon going to be deploying approximately 600 new Cisco 2602i access points in a CAPWAP deployment with several 5508 controllers.
This is an infrastructure refresh; currently we ...
-1
votes
1answer
234 views
Use Wifi over Wired(Disabled Internet Connection) and allow Remote Desktop Connection [closed]
I have This Two Computers, a Laptop and a Pc. The laptop has a better and powerful specs, the problem is the screen was broken and keyboard is not functioning very well but no performance issue. I use ...
0
votes
2answers
124 views
How to keep office LAN private from public WLAN
I handle the network at a small business; it's not my primary job but one that I am in charge of. My boss owns a house next to the office that he uses as a general meeting area and as a guest house ...
-1
votes
1answer
37 views
one client makes packet loss to others [closed]
I have a D-Link 2640 modem in my room in an indoor area. When my friends connects to modem via wireless, I got a huge packet loss while pinging 192.168.1.1, and when he disconnects, everything works ...
3
votes
2answers
194 views
CISCO WLC: use LAG or not?
Could you advise from your own experience is it good practise to use LAG (Link Aggregation) on CISCO wireless lan controllers on not?
Benefits (as for me): redundancy and a little bit simplification ...
4
votes
1answer
87 views
Wireless antenna polarization
I am testing a new 5GHz 6db patch antenna with an 80 degree spread in the horizontal direction and a 30 degree spread in the vertical direction. The antenna has a marking with 'top' on it.
My ...
12
votes
2answers
157 views
Identifying a Cisco access point post-install
We have about 50 Cisco 1242 access-points and we're managing them with a Cisco 4404 Wireless Lan controller. The guy who installed the APs did not assign a location to the access points in the ...
17
votes
1answer
259 views
All WiFi clients losing connectivity at the same time
In order to provide WiFi coverage for a small office area, a Cisco autonomous single-band 1041 (AIR-AP1041N-E-K9) is used, running software version 12.4.25d-JA1. The access point is having a basic ...
6
votes
0answers
83 views
Spontaneous TCP Packet Re-transmissions on Cellular Data Connection [closed]
While monitoring a socket with Wireshark on a Verizon cellular data connection, I've noticed that sometimes the socket endpoint will receive TCP re-transmissions that I haven't sent.
I've been ...
14
votes
3answers
257 views
Can a probe request be answered on a different channel?
I am monitoring the 802.11 traffic in my network, and especially the active probing from my smartphone. I am sending Probe Requests for certain hidden SSIDs, but also an Undirected Probe Request, ...
8
votes
2answers
226 views
Simulating a poor network
I'd like to set up a poor wifi network in my office for developers to test on. What is the best way to simulate real world crappy wifi? High latency? Dropped packets? low bandwidth?
8
votes
1answer
223 views
WLC - How to disable 2.4Ghz
Is there any way I can disable the 2.4Ghz and just leave 5.0Ghz channel enabled on a per WLAN (SSID) basis? Or the only way is to disable the AP's radio and leave 5Ghz enabled?
10
votes
2answers
471 views
LAP ignores DHCP Option 43 and uses CAPWAP UDP broadcasts
I am trying to redeploy Cisco 1242 LAPs on new Cat4507R+E switches, which means the IP address of the WLC is changing for that LAP. For some reason, I have to configure ip helper-addresses on my LWAP ...
3
votes
1answer
83 views
IPAD Roaming on HP APs
Was just wondering if anyone has any insight into this. I have an issue with IPADs roaming when connected to a specific SSID in a large campus network design. The APs are managed via a WLC from HP. I ...
