Cisco Wireless :: 5580 Deploying Router Into A Data Centre
Aug 18, 2012
I'm looking at deploying a single WLC 5580 into a data centre and I'm trying to decide if to use flexconnect or to tunnel traffic back to the controller. There will be 2 offices each with 40 access points. The wireless will need to support roaming voice traffic. Will I have any issues with flexconnect and 30 access points? I'm aware that you can only have 25 aps per flexconnect group but I dont know if this has any limitations such as dirty roaming? Also is tunneling traffic back to the WLC ok for voice and video traffic as the traffic will have to travel back from the data centreto the local offices ?
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Jan 2, 2012
We currently have a single data centre with 2 x 100Mbps internet links from a single ISP. The 2 links are routed and terminate on separate ISP switches/routers with a /30 IP address, the links terminate on 2 Cisco 3900 series routers in the DC. eBGP and iBGP has been configured to provide high availability. We are currently using a private BGP ASN from the ISP and /24 subnet which is routed to the primary 3900 router and to the backup 3900 router in the event of a primary router failure.
We are looking to add a second data centre for DR and we need the /24 to failover over to the DR data centre in the event that the primary DC fails. The second DC will only have a single 100Mbps internet connection as resiliency in DR is not required. I understand how eBGP/iBGP willl be setup and configured for both sites but I would like to know the pros/cons and peoples experiences of using a single ISP to provide internet connectivity for both Data Centres? I understand that I will need a public ASN if I use separate ISPs.
Is using a single ISP for all 3 internet connections acceptable? The circuits will be connected to resilient parts of the ISPs network. If we decide to use a second ISP, would it be recommend to use ISP1 for the Primary and DR data centre primary links and ISP2 for the Primary data centre backup link?
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Sep 27, 2011
We have an aironet 1130ag in a remote office connected to the data centre over MPLS. The Radius server is based on server 2003.We have hundreds of these points set up exactly the same but this is the only one giving me issues, I even stripped the config and rebuilt it and then swapped with a new access point
The issue is that clients can't authenticate when connecting to the access point but provides nothing in event viewer. Checking the RADIUs server provides nothing either.The access point error logs just state station: authentication failed
On looking deeper into the problem I enabled RADIUS debugging on the access point and got some interesting results, in particular is the line:
no sg in radius-timers: ctx 0x12EF0A4 sg 0x0000.I can't find out what no SG in Radius-timers actually means, but after that line appears I just see more retransmits and no sg fails.
I inspected the packets on the RADIUs server and found lots access requests coming from my access point and lots of access-challenges returning back from my RADIUS server - I'm not sure how often that's supposed to happen or if it's a one time occurance. I did however see directly after the first access-request that the RADIUS server returns with UDP and is fragmented, length is 1514...... could this be the problem? If so why cannot it hanlde fragmented packets?
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Mar 1, 2012
In the Firewall Dashboard of my ASA 5580, I get data on every pane, except for the Top 10 Sources and Top 10 Destinations. Why is that, and what do I need to do to get data there?
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Mar 13, 2013
I am looking at deploying a Cisco Virtual Wireless LAN Controller (vWLC 7.3).
Do I need Prime Infrastructure to manage the environment, or can I manage my AP's (1200 series) using the vWLC alone?
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Sep 4, 2012
Is it necessary to understand web development to deploy a web server
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Jul 31, 2011
I tried to deploy configuration templates with Cisco LMS Template Center, due to the 10 Cool LMS Tricks to better manage your network i am able to do it now.Just i don't know why, after deploying these templates the configuration is not save to the startup-config.another problem i have with the snmp-server location configuration. It seems my template does not support spaces in the textbox. Any way to put spaces in the snmp location?
<parameter name="snmp-location">
<description>SNMP Server Location</description>
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Sep 27, 2011
We are deploying devices with IOS XR and wondered if deploying them with TACACS authenticating to the Cisco ACS 5.x platform.
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Jun 7, 2011
in one of the sites, the client has an exisiting 4402 controller which he moved to the DMZ in order to set it as an anchor & he purchased two new 5508 controllers to control the corporate APs. I configured all the parameters needed for the guest anchoring & then I tested the connection but there was an issue. (all the controllers are running the same firmware version)after testing the setup, the guest users could get an IP from the internal DHCP of the anchor controller (in DMZ), but then they cannot reach the internet or anything outside the anchor controller.Cisco confirmed that the 4400 is fully compatible with the 5500 to work in an anchor-foreign secnario as long as they are running the same firmware version. yet, when I temporarily used one of the 5500 controller in the DMZ as an anchor & I applied the exact same configurations on it as the 4400, it worked perfectly without any issues.
note: on the anchor controller (4400), the management & AP-manager interfaces reside on the same subnet & the wireless guest SSID is also mapped to the management interface. (may be this setup is causing the issue) but on the 5500 it is working just fine?
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Aug 21, 2011
Is it possible to upgrade the software images on ACE 20 modules and/or ACE 4710 Appliances?
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Jul 22, 2011
I just recently replaced an older linksys pre-N router with a RV 120W. I thought this would be a good choice as a more professional router. I installed this router last week and things seemed to be working normally for web browsing, though I was receiving more incomplete pages and broken graphics. Yesterday, I tried to watch a youtube video a friend had sent me and it would not play. I tried several other videos from youtube and other sources with the same result: stalled videos, partial played videos followed by a spinning wheel. It was late, so I figured something was going on with Comcast and went to sleep. This morning, I was trying to download Anti-virus updates. The updates failed multiple times. I then tried some videos again with the same results. I tried downloading .ZIP files from several sources, and while the file completely downloaded, each and every file was corrupted and unusable. Before I called Comcast to complain about my Internet being flaky, I unplugged the Comcast Arris TM502G device from the Cisco router and plugged it directly into my computer fully expecting the problem to persist, but the problem immediately dissapeared. The immediate evidence is that the problem lays with the Cisco Router. It appears that I can't make any changes on the Comcast device as it has a comcast public IP address and does not seem to have any web or telnet interface to change the settings.
- On the Cisco router, I disabled every non-essential service: VLAN, QOS (bandwidth profiles), IPV6, etc
- I updated the FW to the newest version the day I installed the router
- I power cycled the router
- I power cycled the comcast device
I need to resolve this issue as soon as possible, but I'm not sure what to try next, and I'm confused about my support options after trying to navigate Cicso's support pages. It offers live chat, e-mail support, etc, but everything I go into requires a contract number.
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Nov 5, 2012
I've a WRT54GL still working well after 5 years of use. I've got one Ethernet cable attached PC (computer "A"), and two WI-FI attached, (computers "B" and "C"). They're all running Windows XP. I've heard much about how intelligent devices and intelligent systems can route the traffic in the most efficient manner, but not sure how or when it works. For example, if I sit at computer "B": and copy (or move) a file from computer C to computer A, what route does the data take? Does it pass through computer B?
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Jan 10, 2012
I have a 1.5 TB USB hard drive attached to me E4200. Configuring it so that multiple computers have access and can read and write their files is quite simple. I've followed the instructions and had no difficulty.
My problem is this, after about a week's time has passed any file that has been on the hard drive for more than a week become undeletable. Any attempt to modify it or remove it pops up a message saying I need permission from a specific user (always the user that I am currently logged in as!) to perform the operation on the file.
When this starts to happen, the device is, otherwise, perfectly functional. I will still be able to create new files and delete any newly created files from the drive without difficulty even when those files are in the same directory as the files that the device will no longer let me edit. Examination of the file properties dialog shows that the files that the device refuses to allow me to delete are identical in every way to any new file that I create. Yet newly created files are removable but these older files ... are not.
I'm quickly coming to the conclusion that the HDD mounting feature of the device just doesn't actually work as advertised.
FWIW: all my computers are using Windows 7 with the latest build. I do access the device from these computers wirelessly.
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Mar 26, 2012
I have E4200 v1 with 1.0.3 firmware and an old 2.5"/120GB hard drive. Today I discovered that all my data where lost. They were there not longer than a couple of days ago. I'm almost sure it's not my fault and the drive is healty. I'm now moving back datas onto it and I will check for them daily.
1) I had no power loss;
2) I didn't reboot nor I didn't switch it off/on;
3) I didn't copied files since days;
4) The last time I used it I just browsed files;
5) It's not exposed to the internet but just to local network;
6) The router hasn't logged admin logon other than from my computers.
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Dec 27, 2011
I'm using E4200 (fw 1.0.03) as AP and EDIMAX 6675nD as a client. I can't get over ca 10MB/s data througput even there aren't any other communication loads. Test conditions are: 5GHz band, no other networks in the band, distance 2m without any obstacles, no other data transfers (except the test), data source is NTB on GLAN port of Linksys, data sink is NAS at GLAN port of Edimax, test file is 0.5GB file. The NTB and NAS doesn't seems to be a bottleneck, because NTB connected directly to the Edimax does over 50MB/s. Both the E4200 and 6675nD are (should be) capable of 450Mbit/s @ MCS23. Strange thing is that none of them allows setting of MCS23 in their manual settings. It ends with MCS15. While forcing the E4200 to a specific MCS (in the hidden wireless_advanced menu) the MCS15, 14, 13 and auto give very similar results. The throughput drops by MCS 12 and lower indexed MCSs.The 10 MB/s seems to be a low number.... and (based on internet forums) I'm not the only one fighting the magic number 10MB/s. What is the reason of the ca 10MB/s bottleneck? And the resons why both of the routers are quiet about the MCS16 to 23 schemes in their menus, while their labels aren't?
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Dec 14, 2011
I have had an e4200 for about a month now and its been pretty good. But I have noticed that it completely locks up when I go to copy mass amounts of data through it. I have a NAS drive plugged into it and my laptop is on the 2.4 spectrum. I went to transfer 8gigs of data from laptop to NAS drive and the entire wireless portion of the router locks up. All my wireless clients drop and I have to unplug the router and plug it back in. Even the 5ghz clients drop as well. I have not tried hardwire, but the main reason I got this was for its throughput.
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Sep 26, 2012
I currently have a E3000 router. I have set up a shared USB drive successfully through this router. After a couple of months, I needed to re-locate my router into a different room. After doing so, I plug back in the USB drive and cannot access it. If I go through the GUI, it tells me that the drive type is not supported, and if I just plug it into a computer to obtain the infromation off of it, I get a "drive is corrupted" error
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Dec 16, 2012
I had my external drive plugged into the e3000 with the network drive mapped on 2 laptops. One day my connection was slow so I backdoored the router ip (I didn't use cisco connect) to reset the router from my iPhone. I'm not sure exactly what was changed, but the partition disappeared from the drive. I've used a couple file recovery programs to try and retrieve the 250+ Gb data that was on the drive with no luck. They only find "deleted" files. Not the 13k files that were there and not deleted. The drive was never bootable. What to be used to recover the files.
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Sep 30, 2012
I've lost about a TB worth of data. I'm rebuilding a computer and had my hard drive, a Western Digital Caviar Black WD1001FALS 1TB, in an external enclosure so that I could access files from it until I could move them to a new drive. I just happened to hook the drive up to the USB port on my new Linksys EA3500 router and now I can't see anything. I believe the process of plugging the drive in, allowed the router to mess with the partition table of my drive. Before, when things worked I saw three logical drives. one of about 50-75 MB of reserved space. One of about 80 GB that was my original system drive and one of about 920 GB that was my main data drive. All of these were NTFS. Now when I look at the drive, all I see is one drive FAT32 drive of about 71 MB.If I look at the drive under Computer Management, Storage, Disk Management, I see the drive is made up of a 71 MB FAT 32 Primary Partition and a 932 GB Unallocated partition.Am I totally screwed? Is my data still there and is there any way for me to access it or any utilities I can use to get to my data in this unallocated partition? What the heck did this thing do to my drive without permission?
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May 3, 2011
My setup is as follows:
Linksys E2500 as DHCP client, all default network settings (MTU auto configured to 1500), connected to:
ZTE 831 II ADSL2+ modem in bridged mode
The issue is that whenever any large file is downloaded over HTTP, the download stops after about 4 minutes and never resumes. This results in:
1) HTTP downloads of anything > ~80 MB failing; tried using several browsers and CURL, all with the same results
2) iOS downloads in iTunes timing out
3) YouTube videos stalling every few minutes
Interestingly, Netflix streaming works OK. Perhaps that's because the protocol for Netflix is not a single large download but a bunch of smaller ones, but that's conjecture.
This all occurs over both wireless and wired connections to the E2500.
If I connect my Mac directly to the ZTE modem, I don't have the problem.
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Feb 27, 2012
I have WRT160NL with Firmware Version: 1.0.02. After 3 days of trying to connect my WD Elements 3TB I succeeded with 2 partitions of 1TB and one of 700 Gb not visible from router. I'm ok with that. The problem now is when I copy my files. I'm trying to create TV Series library for my Apple TV. Everything is working fine except the size of the files. When I'm copying files from PC USB they are corrupted on the network storage and not accessible. When I'm copying one file of size 350 Mb on the Network Storage via WIFI working fine but is saved with size of 2,7 Gb.
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Aug 11, 2010
I have just bought an E3000 router when my old router died last week. I am having two problems:
1. The data rate slows down after a period of time (long message trail elsewhere)
2. I cannot see everything on the network.
I have several Win 7 computers, two win xp computers, three NAS devices (linux based), and a printer sitting on the network, along with two switches to cope with all the traffic (not to mention iPods, iphones etc.)With my old router, I couold see everything plugged into the network from my main Win 7 computer. (note: the win 7 network map does not always work, but the windows explorer window of the network always showed everything).With the E3000 router, I can only see 1 or 2 of the devices on the network. If I reboot the router, then sometimes all of the devices appear on the windows explorer window (sometimes not)I am running a workgroup (not a domain) and i am not using win 7's homegroup because that will not work with the non-win 7 devices.Is there a setting that will see all of the devices in Win 7 (either on the router or on the computers). I suspect it is a router issue as it worked with my old Zyxel router.
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Feb 3, 2013
My phone and my friends phones can connect to the wifi but I cannot receive nor send data from it. The phones work completely fine elsewhere. Here is the kicker, my computer works completely OK on the router and my phone used to work for 3-4 hours before this issue started going again. Now it is constantly. I restarted the modem, default reset it and still nothing. I get an IP address too and it stays connected. Cisco thinks its the phone, but its multiple phones that are having the problem and my phone and other works completely fine at other places.
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Oct 15, 2011
accessing my cisco ASA, last night we were doing VA on our ASA, after that iam not able to access it through ssh nor telnet. its not giving me any error.. i tried from different system also. SSH & telnet allowed from inside to 0.0.0.0 i have re-generated rsa keys when it was working. ASA version is 8.2 now when i connect telent is giving me blank prompt. i can login using ASDM.
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Jun 20, 2012
Our ASA is a 5580 version 8.1(2) and is the L2L VPN peer for a handful of remote offices including a L2L VPN with a vendor who will provide a service for these remote offices. I have two questions/issues:We will need to provide this vendor access to the remote office network(s) only on port 9100 (printing to specific printers at these offices). I know there is an issue with L2L VPNs ability to see each other but if there is a global command allowing all to see each other that would be bad as we have others and don’t want all to see each other.The remote offices are using CIDR 172.20.0.0/16 so each one is assigned for example 172.20.3 the next office is 172.20.4 and so on. For the crypto map access list for this vendor can we use 172.20.0.0/16 or do we need to specify each individual network?
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Sep 27, 2011
I got a problem with a cisco asa 5580 like two days ago and the device stop working (there was a mainteinance window and after that the device didn't work). Now we receive the RMA and we are trying to configure the failover so the new device get the configuration form the one that is working.
But this is the message that I gettin:
Failover message decryption failure. Please make sure both units have the same failover shared key and crypto license or system is not out of memory
We already changed the shared key and crypto license but the failover is still down, what are the features that the cisco need to activate to enable the failover?
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Feb 11, 2012
I am receiving allot of Errors "%ASA-4-405001: received ARP collision from IP/MAC on interface dmz1 with existing ARP Entry IP/MAC
When i checked this MAC address in the same firewall it shows too many IP Addresses. What could be the reason ?
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Jul 2, 2012
We have a corporate site with a Cisco ASA 5580 (8.1), a remote office with a Cisco ASA 5510 (8.2) with a L2L VPN to corporate. A vendor has a L2L VPN to the corporate ASA with access to the remote office across the VPNs (hairpinning). The corporate office accesses an application at the vendor on port 23. Everything is working with regards to the vendor accessing resources to the remote office and the corporate office accessing the application at the vendor. Our goal now is to restrict the vendor to port 23 from the corporate network and port 9100 to the remote office. On the corporate ASA I setup a VPN filter and applied to the vendor's L2L vpn but when I apply the filter (see below) all traffic stops to the vendor such as telnet.
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Mar 26, 2013
I connected my intranet cable to coreswitch 4510 created one vlan 600,that vlan gateway is routable from asa5580.now my intranet people able to ping my vlan gateway but iam unable to ping their ip.i added static route on asa route inside 192.0.0.0 255.255.255.0 10.100.106.1 1 but iam unable to ping remote ip.
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May 23, 2012
We are using Cisco ASA 5580 (8.2) firewall. When i try to ping from inside lan to firewall DMZ interface IP it is not pingable and but from inside users i am able to ping firewall inside interface IP address.
I think we can't ping to other interfaces of ASA by default. But can we allow the single IP address who can ping all the interfaces of firewall?
We are not doing any natting in firewall, for that we used the Load Balancer.
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Mar 29, 2011
Our company has a handful of sites that use the EasyVPN technology.On my remote router (Cisco1841) - I add the crypto inside to the FA0/0 and the Loopback0 interface.On the other end my Cisco ASA 5580 - 8.41 code - I have RRI enabled and the tunnel comes up fine.However I only see the static route from the fa0/0 interface on the remote router. I can not figure why I can not see the Loopback0 address?Wondering if this is a limitation or feature not enabled.
I added multiple interfaces on the Cisco 1800 and can see the networks.I run "show crypto ipsec sa" on the Cisco ASA and see the spi encaps/decaps for the loopback, but the SH ROUTE does not show the static route being injected.
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Apr 28, 2013
I have a strange issue with certificate based authentication anyconnect. We have an ASA with two internet links, both have a CA authenticated Cert for anyconnect VPN’s. We have an anyconnect client profile also, when we simulate a link failure on the ASA the anyconnect should automatically attempt a re-connect to the backup server list in its configuration (which is the other interface on the ASA 5580) which it does but we get a certificate trust error.
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May 16, 2011
A customer's ASA is presenting the System LED flashing red.I have already analysed the show tech-support and show environment output: Found nothing, everythink seems OK.Cisco ASA 5580-20 - 8.2.1.Single appliance, no failover, multiple context and transparent mode.
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