Cisco :: 3845 Router - DFM 3.0.2 False Alert On E1 Controller
Jul 20, 2011
I have the following problem with DFM 3.0.2:
One of my customers has got a Cisco 3845 router with some E1 controllers in it. DFM sometimes generates an alert that says the controllers are flapping, meanwhile there is no syslog, or snmp-trap generated in the router itself. If the cables disconnected/connected, or a shut/no shut command was issued ont the interfaces, the router generates the syslog and snmp-trap as it is required.
So in a nutshell it seems that there is no flapping ont the controller, but for some reason DFM thinks that there was one.
I searched for bugs, but wasn't be able to find anything relevant neither in DFM, nor in the IOS itself (c3845-advsecurityk9-mz.124-24.T2.bin)
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Dec 18, 2011
I have a few new ASR 1001s throwing false environmental alerts.According to the logs, the inlet temp is in excess of 100 degrees C.When I telnet to the routers, they're well within tolerance (30-32C),Running 15.1(1)S and bug toolkit shows no related issues or caveats.
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Dec 29, 2012
I am having problems with a customer's ASA 5505 with Anyconnect 3.1 - it is generating captive portal false-alerts which are stopping users from connecting. This issue began when I upgraded from Anyconnect 2.4 to 3.1, and it appears like this: A user downloads and installs the Anyconnect client and is able to connect fine, to begin with. However, once they reboot their computer and try to reconnect, the VPN session will not come up and they receive the error message below."The service provider in your current location is restricting access to the internet. You need to log on with the service provider before you can establish a VPN session. You can try this by visiting any website with your browser."
Reading other posts, it seems this message appears when a captive portal is restricting internet access. It must be a false alert in this case as there is nothing of the sort here. Apparently, Anyconnect 3.1 can generate a false alert like so if the name of the firewall's SSL certificate doesn't match the CName listed on the Client Profile. I've set this up to match, to no avail. Although users can connect by reauthenticating through the SSL VPN login web page, I am stumped as to how to get rid of this captive portal error that pops up when they try to use the Anyconnect client.
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Nov 24, 2011
I am directly plugged into the router on my computer, and it is used wireless for the rest of the computers in the house. Frequently (3-4 times a day usually, sometimes more like every 20 mins, other days not at all), the router and Network Magic will tell me my computer has lost internet connection, and browsers and any program I try to start won't be able to connect to the internet. However, I know the connection is still live because any program that was running and accessing the internet beforehand (multi player games and instant messaging programs, for example) still run fine with their connection and I can continue to play or chat online until I close that program.
Trying the 'Repair Connection' on network magic doesn't work, but unplugging and replugging the power cable to the router fixes the issue(again, so I know it's the router and not the internet)whatever reason the router is deciding to tell me it's not active and refuse access to the internet for new programs when existing connections don't show any problems.
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Feb 18, 2013
I connected my desktop with n300netgear -router. It was working fine until I reset it.After that I am facing this problem of not able to access internet. It shows limited or no no connectivity. But when I plug the internet cable directly to my desktop its working fine. When I connect it via router.
C:Documents and Settings
agaraj>ipconfig /all
Windows IP Configuration[code].....
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Dec 10, 2012
Is there any physical or technical diferrences between PWR-3845 AC/2 and PWR-3845 AC? We are trying to order replacement parts and wondering if PWR-3845 AC is for one power supply and AC/2 means you get two with one order?
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Dec 7, 2012
Is there any physical or technical diferrences between PWR-3845 AC/2 and PWR-3845 AC? We are trying to order replacement parts and if PWR-3845 AC is for one power supply and AC/2 means you get two with one order.
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Jan 5, 2013
Facing false alarm issues with ANM 5.2.1. Basically ANM is sending device down (ACE-30 module) messages occasionally, but in real the device has never went down.
Message:
ANM Server Host Name : anm-1
ANM Server IP Address : 10.9.20.1
Device ID : AGG-B:3
Component Name : AGG-B:3
Severity : info
[code]....
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May 31, 2012
I am seeing SNMP coldstart traps that either are delayed by many hours or are false (e.g. right after receiving the coldstart trap a query to sysUptime shows the nodes been up for days).I seen this twice this week in a new network environment for me for two different C2900s running C2900-UNIVERSALK9-M Version 15.0(1)M3 Assuming the coldstart traps are coming from the actual source nodes, I am curious what could be going on here.
1) One guess I have is possibly the system clock changed could cause the SNMP agent to send a false cold start trap. Then my guess is in the device log I should see a system time change syslog message.
2) I recall hearing once that syslog and possible traps messages are held in configurable buffer who default value is 1 and if not sent are held and then suffer a delayed sent. Is it true for both traps and syslog ? In the past I assumed this was simply the logging history buffer and applicable to syslog traps only. My assumption in the past was that last trap or last syslog message is sometimes held on reload and sent immediately after restart regardless of device connectivity to the management target.
I always assumed coldstart traps are never delayed for any reason and that they were pretty accurate substitutes for system reload syslog messages. Does anyknow know any reason for false or delayed coldstart traps on a C2900 with IOS 15.0(1) ?
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Feb 6, 2013
We have two ACE4710 in a failover configuration with Software version A4(2.0). SNMP is setup and the receiver is able to receive SNMP traps.The issue is we are receiving a linkDown trap notification at least once every other day, followed shortly by a linkUp notification a minute later. We have checked all layer 2 devices connected to the ACE and cannot see any evidence that any link actually disconnected. We experienced no traffic lost, but this could be because a couple of the ACE links are bundled. The trap notification does not actually indicate which interface changed status. All links are Gigabits, and there are no packet drops either on the ACE or the layer 2 switch.
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Aug 13, 2012
Everytime the console port is plugged in, the alarm contacts (1-4) randomly assert (trigger) and then clear themselves in random orders. Nothing is plugged into the ALARM port and all Alarm setting are default. Below is the syslog message and Alarm Settings:
CGS2520-C#show env allSYSTEM TEMPERATURE is OKSystem Temperature Value: 45 Degree CelsiusPOWER SUPPLY 1A TEMPERATURE is OKPOWER SUPPLY 1B TEMPERATURE is DisabledPOWER SUPPLY 1A Temperature Value: 49 Degree
[Code]......
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Apr 17, 2013
I recently purchased a Linksys AE3000 Dual-Band Wireless-N USB Adapter as an upgrade to my Dell Desktop Computer and to compliment the Linksys EA4500 Router that I recently installed. Generally it seems to work well and the 2.4 GHz network status typically shows speed to be 450 Mbps. However, I’ve discovered if the computer goes to sleep based on my power plan, when it comes out of sleep the “Available Networks” will show the network I’m connected to (2.4 GHz network) and a false network identified as “Other Network” with a Red “X” where signal strength would normally be. When I mouse over it; it shows Network Name: Other Network; Signal Strength: Excellent; Security Type: Unsecured; Radio Type: Unknown; and SSID: Other Network.
Initially I thought this was an anomaly caused by having both bands of the Router (2.4 and 5.0 GHz) set to the same SSID, so I changed the 5.0 GHz band to a different SSID and set my Media Players to access the new SSID. However, now when the computer comes out of sleep mode, Available Networks will initially only show the Router’s 2.4 GHz SSID and the phantom “Other Network”. It takes a while before the Router’s 5.0 GHz SSID shows up. We live in the country, so there are no other networks close to us, just my home network. It never shows the “Other Network” when I start or restart the computer and if I disable the adapter and then enable it, the phantom network goes away until the computer goes into and out of sleep mode again. Also, I uninstalled and then reinstalled the Driver and then reinstalled the Adapter using the Cisco Connect Software and the problem still exists. Finally, I disabled the Router’s 5.0 GHz network and the phantom network no longer appears under any conditions. The Dell (Atheros Communications) Wireless Card in the computer doesn’t have this issue under any scenario. On both the AE3000 and Atheros Adapters the 2.4 GHz network shows a signal strength of Excellent (5 out of 5 bars) and the 5 GHz network shows Good (3 out of 5 bars).
How to correct this issue? With the issues I’m having with the EA4500 and the AE3000; they are both probably going back to Amazon.
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Apr 10, 2012
I would like to receive Cisco's email alert for bugs, security vulnerability, etc. if there is such service.
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Dec 12, 2011
I have WCS 7.0.172.0 where as i have very frequent alert about DoS : CTS flood In channel 60, the system has detected 212 CTS frames in the last minute, which matches the traffic pattern of the form of denial-of-service attack, CTS (Clear-To-Send) attack. A wireless denial-of-service attacker may suspend the wireless media for communication by taking advantage of the privilege of CTS frame to reserve RF medium for transmission. By transmitting back to back CTS frames, an attacker can force other wireless devices sharing the RF medium to hold back its transmission until the attacker stops transmitting the CTS frames. The system detects the abuse of CTS frames for denial-of-service attack.
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May 5, 2012
I receive email when an interface comes down but because i have a lot of routers with a lot of interfaces i can' tell which one came down , is there any way to include the description under the interface in the email ?
Also can i monitor the existence/not of specific route in the routing table and receive email ?
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Jan 31, 2013
I have an issue with my lms 4.2 installation.I have created a fault notication group which sends me an email when an alert is active on a device.Some of the devices are deleted from the inventory, but when I restart my deamon manager. I receive alerts for all the devices I have deleted in the past.I get this email in my inbox.When I check "Monitor - SNMP traps - fault notification group" I can't see any of the devices for which I receive the email alert?
EVENT ID = 00024PS
TIME = Fri 01-Feb-2013 11:03:59 CET
STATUS = Active
SEVERITY = Critical
MANAGED OBJECT = switch
MANAGED OBJECT TYPE = Switches and Hubs
[code]....
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Apr 14, 2013
My SCE1010 show the alert "Not enough disk space" in log.I find old discuss , someone say can delete the file: /tffs0/SYSTEM/PREVDBG.TXT , because the file is too big.But I don't confirm delete the file will not effect system work fine. [code]
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Mar 27, 2013
I have a WAP321 here, which is running at firmware version 1.0.3.4. The E-Mail Alert setup works for me, meaing I receive notification E-Mails from the Access Point. I am wondering however, why those E-Mails are blank, meaning, I only receive header information (to, from, date, subject) but no body content. I was expecting to receive the error message as content of the E-Mail Alert.
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Oct 7, 2012
If asa finds the abnormal behavior, can set up and send email to administrative mailbox?
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Apr 26, 2010
I am trying to setup email alert on our ASA 5520 so that i can receive emails to my exchange account below is the configuration [code] The smtp server is in our internal network.first i am not able to ping 172.17.1.12 as ping is blocked.i did this confgi like two days before..but ca see alerts and error messages through asdm but no mail is coming in.
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Oct 31, 2012
With LMS 4.1.How do i create an Email alert when stack/switch become non responsive?
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Mar 3, 2011
Is there a software out there, that will send me an alert when a user is installing a program on there computer? Whether is sends me an email or a text, really dont care. I have a guy in one of our remote locations that likes to install his own IT Tools on everyone's computer and i need to know when he is doing this.
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Aug 19, 2012
I have recently enabled the SMTP alert function in ACS 5.3. It seems to work well for most of the alerts. One thing though, the active sessions are over limit warning that comes up every so often. I know it is not impacting operations and it is ACS's way of clearing out sessions that had no accounting stop, but how do I disable this alert from being sent by e-mail from ACS 5.3?
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Mar 22, 2012
Below memory status alerts of are seen on our syslog server for Nexus 7K switch(Default VDC).
PLATFORM-2-MEMORY_ALERT_RECOVERED: Memory Status Alert : CRITICAL ALERT RECOVERED
PLATFORM-2-MEMORY_ALERT_RECOVERED: Memory Status Alert : MINOR ALERT RECOVERED
PLATFORM-2-MEMORY_ALERT_RECOVERED: Memory Status Alert : SEVERE ALERT RECOVERED
Memory threshold Not created on Nexus. Can we ignore this alert or does it impact our current network traffic?
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Feb 22, 2012
I would like to know if there's a way to show Current-Utilization percentage within the messages generated by the Fault Management Module in LMS 4.0 [code] As you can see above CurrentUtilization percentage is not shown in Event Description section.
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Mar 24, 2011
I am installing Cisco blank CF upgrades (double the capacity of the CF that came with the router) in Cisco 3845 routers and I cannot get the IOS to load.
Network security requires tftp be disabled, so I am limited to xmodem. Slow, but it works. I know the IOS download is good, because I can load it on the CF that came with the router.
I can install, format and read the new flash. But the download locks up and bombs about 1/3 of the way through.
Note: CF that came with the router was "C" so I used the format flash: command. The new flash reads the same as the old, except that there is no file IOS loaded.
I've never had an issue upgrading an IOS, but this is my first shot at installing on a new CF.
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Apr 26, 2011
1841 & 3845 router. We send 30 GB data on 100 Mbps link. First time we use 3845 router for sending the data and 47 Min are required to complete the data, during this link utilization was 100%. After that we send same data through 1841 router & 46 Min are required for the same. Only difference in data transfer is CPU Utilization of 1841 router goes 30% & 5 % of 3845 router Can we use 1841 router instead of 3845 router ? .
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Apr 26, 2011
I have 3845 router where 200 branches are connect. Ho have database server where branch are synch interval period.some of days observation cpu load average 70 % and sometimes it reaches 100 %.yesterday when I give command clear arp then instant cpu load reduce and 20 % yesterday cpu load 12-20 %. Today morning when I give command Cpu proc history then I found cpu load 60 % and at night it was 3 times reaches 100 %. so my question is after clear arp command at least 10 hours cpu utilization 20 % but after that it increase.so for any LAN broadcast it happend ? how i understand cpu high for Broadcasting or anything else.
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Jun 8, 2011
I am facing a issue on Cisco 3845 router, IOS is :c3845-adventerprisek9-mz.124-22.YB8.bin
I have changed the IOS as well as the Hardware but again the router is restarting. I have put the show tech-support and crash-info in Output interpreter, result is below:
ERROR MESSAGE NOTIFICATIONS (if any)
%PAR-1-FATAL (x): [chars]
Explanation: A parity error has occurred. The problem might be caused either
by a motherboard that has failed or motherboard settings that are incorrectly
set.
[Code].....
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Aug 16, 2011
Can i Use 1 single IOS in all 3845 Router?
I have S384AESK9-124xx (T) version IOS in one of my 3845 router, can i copy the IOS and install it in my 4 x 3845 Router as i require (T) Version IOS to support HWIC-2FE module.
Like wise, i have Cisco 1800 IOS- S184AESK9-124xx (T) and Cisco 2800 IOS- S28NAESK9-124xx (T) installed in my routers, will there be any issues if i copy and use the same IOS in all my respective devices?
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Oct 20, 2011
we have 3845 routers with internet service providers connected on it.we have configured router bgp 2.xxx as our AS. What is the concept behind router bgp 2.xxx with ISP ?
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Dec 19, 2010
Can I delete the running IOS from flash on an operational 3845 router to make room for the newer version? The flash isn't large enough to hold two versions. Doesn't the IOS get loaded and run from NVRAM? I don't want to take down an operational router but may have no other choice?
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Jun 25, 2011
I am looking for example of ACL to deny overlap fragments,i have 3 messages on a router 3845 , follow cisco documentation it might be an attack on a host the recommendation was to create an ACL to deny overlap,
.Jun 25 07:35:49.097: %IP_VFR-3-OVERLAP_FRAGMENTS: GigabitEthernet0/0: from the host 183.216.33.100 destined to xx.xx.205.102
.Jun 25 07:35:49.101: %IP_VFR-3-OVERLAP_FRAGMENTS: GigabitEthernet0/0: from the host 183.216.33.100 destined to xx.xx.205.102
.Jun 25 07:36:29.566: %IP_VFR-3-OVERLAP_FRAGMENTS: GigabitEthernet0/0: from the host 183.216.33.100 destined to xx.xx.205.102
[URL]
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