Cisco Switches :: Sg 300-52 Constant Activity?
Apr 29, 2012
we recently purchased a sg300-52. i was told i would need to setup a port trunk to connect it our main catalyst. However, i was able to connect a patch cable on the two devices and ping endpoint devices on both switches. I also noticed that the activity lights are constantly blinking. I'm not sure why. Is there something i can do to slow the activity light? it blicks constantly even in times of very low activity by the endpoint.
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Apr 8, 2013
I have a Cisco / Linksys SRW 2016 switch, all was working fine. Powered off and powered back on a day later.Switch powered up and the system light lit.But non of the ports what had cables connected were active....If you connect a network cable to the switch and then a laptop / pc .. The computer knows that there is a connection, but only gives a 169 address. Presumably because the switch cannot get to my dhcp ?I have tried connecting a serial cable to the switch top see if I can see any error, but when running Hyper Terminal I only get the white screen and can not see any POST etc.As far as I under stand it is a straight through cable, do I need a null modem cable to console onto the switch?
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May 24, 2012
My previous setup was a ProSafe GS108 switch, 10/100 Dlink router/switch used only as a switch, and a DI-655 router/switch. With this setup, activity when I wasn't using any of my computers was zero. There would be no blinking activity lights.
I dumped the ProSafe and 10/100 switch, and use the DI-655 only for my internet uplink and wireless, and now have everything else plugged into a Cisco GS200 switch. There is activity now every two seconds. I presume this prevents the Green energy saving features from kicking in as the ports are in use.
What's the difference that's leading to all this activity that presumably wasn't there before?
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Jul 27, 2012
We presently have a guest wireless solution in place using 4400/5508 WLC controllers authenticating guests via a NAC Guest server. This has functioned well for the last year or so, but now our security team has requested that we begin logging guest activity. I already have RADIUS accounting set up on the WLAN configuration pointing to the NGS,I have added the NGS to the syslog set up on the controller (I have tried various syslog levels) but I am not receiving any guest activity info in the reports on the NGS. Any way for getting this data?
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Oct 7, 2012
detect botnet acitivity from network point of view.
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Oct 16, 2012
I want to secure our WLAN via Web Authentication with our new Cisco 2504 WLC. But where do i find user activity logs?
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Jan 5, 2013
I am using Bit meter (on Windows 7 64-bit) to measure up/down activity on the network adapter connected to the RV042 in load balancing mode. Is there a way I can, in real time, have a visual indication of up/down network activity on the WAN 1 and 2 port separately on the RV042?
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Aug 30, 2011
I'm running a wpa2-secured guest ssid on a particular vlan that allows traffic to the web but restricts any access to internal network resources. It had been working fine for a couple of weeks, until the network started intermittenly dropping - at first I tried swapping channels and rebooting, but there has been no progress. I keep a running log at all times as long as the network is still active, but once it drops, the only message I'm getting is
'Line protocol on Interface Dot11Radio0, changed state to down'
My understanding would be that this is the same message logged when a user manually turns off the radio from a terminal window, is this correct? Or am I missing some basic troubleshooting steps?
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Sep 17, 2012
I am not good at networking. My friend wanted me to set up his home network.because the modem is unable to supply a good wireless connection to the rest of the household when the door is closed, a second router was needed.I set both routers to run with DHCP as they have many devices that needs to connect to the router for internet. However, a few hours after setting it up, my friend's pc as well as all devices connected to the second router faced issues. The router's interface showed that it does not have connection to the internet. they are still facing this problem until now.
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Dec 21, 2011
I keep getting disconnect from the internet about every 10-15 minutes.I had a tech from cableone come over yesterday he installed all new wiring and a new modem.how can i tell if it's my computer that is the problem or if it's just a service i need to get rid of?
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Sep 12, 2011
I currently live in a fairly-large apartment in Downtown San Francisco and as you can probably imagine, I have ALOT of interference with nearby residential and business wifi's, microwave's, cell-phones and all that jazz.
I currently have the ATT Elite DSL package, which is I believe the 6MBPS(?) package? Anyway, it's the $40 package and I want to say it's either the second or third up from the basic 19.95/month subscription. Here's my problem: ever since I moved into this building, I get signal drops on my ATT all the time--like at least once an hour if not more often. I had a technician check the wiring and he even replaced the router box (they always do) in hopes of improving the situation but so far, no dice.
I have tried switching to different channels after using scanning to see what channels other internet users nearby were using, but I did not see any improvement.The best solution I've been able to come up with is to set my router to be on 802.11B only. For the most part,I have not disconnected but I do feel a certain amount of slow-down or lag compared to my 802.11G settings.Now,I might be paranoid but it certainly does take a good amount of time longer to load up pages and such as compared to previously.The tech suggested I look towards getting an 802.11A/N router, but alas ATT does not support routers of that caliber...not sure why. It's been years and they're still stuck with the 2Wire 2701HG-B model for DSL.
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May 2, 2011
About twice a week lately I'm having to reboot my router. All connections don't work. Logs captured don't show any time stamping so not as good as I was hoping but I do have some debug data:
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Apr 8, 2012
My router was working fine. Then 1 day I started having slow internet. My ping in games would jump up from ~60 to about 400-800. Did some troubleshooting with my ISP. Seemed like my modem was to blame. So I bought a Netgear one from BestBuy.
Everything was fine. Then 1 day the internet stated disconnecting. None of the computers could see the router in the wireless networks. I found the only way to solve the problem is to unplug the power and plug it back in. Strangely it seems to happen a lot late at night like around 11PM or 12 midnight EST.
Before with my old modem I just had automatic settings and DHCP. With the new modem it wouldn't work so I called DLink and the tech guy walked me through some steps, one of which was changing the ip address from 192.256.0.1 to 10.10.10.1. Whenever I reboot the router after a disconnect the computers say "there was an IP address conflict." Maybe this has something to do with it?
I saw in another topic someone said their router's time was wrong. Mine said it was 2010 so I updated it to automatically sync with ntp1.dlink.com and now it shows 2012. Let's see if it fixes now. My mom's laptop had a similar problem with Skype. For some reason the clock kept resetting to 2000 and Skype would not work (everything else did). When she resets the time to 2012 it starts working again.
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Aug 2, 2012
I was examining my router's logs the other day and I noticed a recurring entry stating that my PC's IP address was sending packets to the IP 172.16.30.115 on port 80, and that the router was dropping them.Except for the fact that my home LAN uses the 192.168.1.0/24 network EXCLUSIVELY. That is all it has ever used since this router was set up, and the only other networks we have EVER used are 192.168.0.0/24 and 192.168.2.0/24. So why, I wondered, is my PC repeatedly sending (presumably) HTTP traffic to a private IP that is not and never has been on my network?I wasn't worried about what these connections might be doing, since I figured they couldn't do anything, but I was kind of concerned about what was generating this traffic in the first place. So I downloaded Wireshark and ran a capture for 30 minutes. Upon completion, I filtered results to show only packets that contained the IP 172.16.30.115, as either the source or destination IP.Based on the router logs, I expected to see three packets with my PC's source IP address and a random source port sent to 172.16.30.115, port 80 every 10 minutes.And I did see that. These are TCP packets, and they appear to be completely empty. The only thing I noticed about them is that the SYN flag is set. I don't know what the significance of that is, if any, but that's what I noticed.
What I DIDN'T expect to see were the packets that had a source IP of 172.16.30.115. These packets (also TCP) had the ACK and RST flags set, and they contained the text "Go away, we're not home." So not only are there packets being sent to an IP that cannot possibly exist within my network, but there are also packets coming FROM the impossible IP telling me to go away.All of that is scary enough on its own. But then I hopped on Google and did a search for the phrase "go away, we're not home," and almost every result was related to the decline of the Storm worm. After reading about Storm, I was more confused, not less. In its heyday, Storm used UDP traffic to communicate between peers, and my mystery traffic was TCP. Storm usually did not use well-known port numbers, such as 80, which I read was part of what made it so resilient. Not to mention that the most recent posts I could find regarding the Storm worm were dated 2010 and were about the possibility of a second Storm, and I didn't get this PC until May 2011. Plus, even if we ignore all of this and operate under the assumption that I have the Storm worm on my PC, that still doesn't explain the fact that the traffic from my computer is heading to a private IP that is NOT, I repeat, NOT being used on my network, my router says it's dropping this traffic, but my PC is still somehow receiving a response from an IP address that 1) isn't on the network and 2) can't be having any packets forwarded to it, since the router says it's dropping the traffic.So, operating under the worst-case scenario assumption, I used two different virus scanners (not simultaneously, of course) to do the deepest scans they are capable of doing. They both turned up completely clean. In fact, I've had AVG Free installed on my computer since I got it, and even if you look at my virus history you only see a few tracking cookies, a corrupted EXE from the Skype setup folder, and a Trojan dropper that I never even ran because I thought the file properties seemed fishy so I scanned it and promptly deleted it. So I now have to go back to operating under the assumption that I do NOT have the Storm worm, and I am back to the drawing board.
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Mar 30, 2012
REmote desktop connection times out when there is no activity, I mean I open rdp to work computer from home ,If I am away from the computer I am not using keyboard , after few minutes I get a blank screen and if it is very longthe connection times out and I have to relogin to my computer, I need suggestion on how to retain the connection so that no blank screen appears and I alos dont loose connection .
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Dec 28, 2012
I heard my brothers' conversation in our house. One was asking another, if he is downloading things. The other one replied, saying no, he didn't. And then the one that was asking said, he knew he was lying. He can detect and monitor that person's IP address to know enough if the other person is downloading or not.
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May 24, 2011
Sometimes when I actively use the LAN (copy a file or stream media), my PC loses connection to both the internet and LAN. It doesn't always happen though. I can always fix it by opening network connections and disabling Local Area Connection and then re-enabling it. However, if I don't do this, the connection stays off indefinitely. The PC that loses connection is on Windows 7 64-bit with Asus P5K integrated ethernet controller with latest drivers. Modem/router is Linksys WAG320N.
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May 11, 2011
During the last month or so my internet connection keeps stalling and will not work until I repair the connection, however I am still connected to the network, I just can't send or receive packets. In particular when I am downloading things, it will stop after 2MB is downloaded or 300MB, it just random. After sending/receiving 7,000 packets or 700,00. This only happens to my computer with the wifi adapter. Prior to this I didn't have any issues for over two years. My phone and laptop still connect via wifi to the internet. And the xbox and blu ray player are connected via ethernet and have not had any problems. The log for my router states "deauthenticate reason 3", which I have found to mean "The access point went offline, deauthenticating the client". So, I figured that the issue could be the wifi adapter which I installed on the laptop and that too never had an issue. I used inSSIDer 2.0 to see the close by networks and changed channels to get away from the strongest ones. I tried switching to wireless n only instead of g and n, the problem still persists.
Then I figured the issue must be my computer and no malware, spyware, adware nor any virus was found. The same thing happened while in safe mode. I also tried the winsock fix to no avail, reinstalled the wifi adapter and made sure all firmware for the router and adapter were up to date as well as XP. I also tried with my firewall shutdown but I still loose the connection. So I then reluctantly did a clean install and even with the bare essentials it still stopped working. I also bought a 15ft USB extension to get a better signal but still, even though I have a good or excellent signal I still have problems. My latest thought was this was the only machine running firefox 4 so I went back to 3 and that didn't either. I checked my usage with my ISP and I am no where near the 250GB a month.
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Dec 25, 2011
I keep getting disconnected and blocked from using even LAN on my computer. This happens whenever I visit certain websites. For instance, I registered on a website that has me "kept signed in", and whenever I click to view that website, it partially loads and then for precisely 1 minute any network activity I try (like visiting my router configuration page, or clicking refresh or home to load google) will not go through. Only after that one minute is over with, I can resume browsing that website; however, if I leave it for too long, and then return, the same thing happens.
I've also noticed that if I sign out of that website and then visit it, that disconnect issue won't happen.But that isn't the case with other websites, as they require no accounts and are just pages with news and other stuff.I tried uninstalling and reinstalling my ethernet drivers, tried flushing dns, renewing ip, releasing and some other /cmd stuff that I found online.This also doesn't happen on any of the computers connected to my router (although, they are all using wireless - I am using cable to router).I'm on windows 7 x64, using a realtek ethernet card, Nod32 security suite (think it may be the settings on this thing? I set everything to super safe settings so I don't get any dumb viruses). Windows is updated (well, at least 3-4 months ago it was updated). I have no idea what is causing this, and why the precise 60 second interval until I regain access to the internet.I'm using Firefox, but this also happens on IE8 or 9 or whatever I have installed, so I don't think it's a browser issue.Things like facebook, youtube, pennyarcade and other junk work, but as soon as I go to google looking for, say, apartment rentals and open some pages, one of the links in the search results is bound to make my connection freeze.
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Aug 2, 2012
My office uses a Windows domain network. Is it possible for them to track which IP/Port I'm using through some network software. Sometimes I do SSH access to my server. Can they get notified any how about this ? We use Windows XP SP2.
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Jan 4, 2013
I am wondering if I can log all activity on my network. Right now I can log activity with MAC addresses, but if I add a device I have to keep adding MAC address. I also have to have several policies because I can only put about 7 MAC address in per policy.
I noticed the option to add 'other machines' and I am not sure how this works. I have tried it and can't get it to work.
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Apr 28, 2011
Is there any way to hide my activity on the network? My network administrator monitors our network activity, specifically chat.
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Jan 31, 2012
Model E2000
Firmware: 1.0.04
Using 2.4 channels
All devices that are connected wireless through this access point have the difficulty of dropping internet momentarily. When ping from wireless devices to comcast.com with -t I get:
This happens about once every minute. Wireless connection itself does not drop just access to the web. Every single wireless device does the same thing including Ipad, ipod, mac and windows machines. Two machines that are directly wired into the router do not have this problem. Thier Ping status stay at around 60ms. Things I have tried:
adjusting MTU
Beacon interval in both faster and slower directions
Fragmentation threshold
RTS threshold
Made sure no other devices in range are on same channel
firmware updates
different security settings
changing SSID
This is causing streaming problems for both security cameras and client music.
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Aug 8, 2011
I have 1 WLC AIR-CT5008-K9 version 7.0.98.0. with iPads connected to a WLAN with [(WPA+WPA2)(AuthPSK)].and have constant disconnections. But the Laptops do not have problems.
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Nov 27, 2012
I am constantly getting a few errors in my ASA 5510 and 5505 from the same IP. The IP of my NMS server, which has also stopped recieving SNMP data from these two VPNs.
Syslog Id: 713048 Error process payload: Payload ID: 1
Syslog ID: 713902 Removing peer from peer table failed. No Match.
Syslog ID: 713903 Error: Unable to remove PeertblEntry
I have tried to configure ACL to let traffic through. SNMP traffic to be more precise, but since I am fairly new to cisco firewalls and SNMP in general this has proven very difficult.
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May 29, 2012
I am triing to migrate my old ACS to the new one. I am using ACS 5.3 on appliance CSACS-1121. Sometime, i loose the connection to the appliance and i could not connect to the appliance with SSH, i could not start the GUI and the authentication is switched to the secondary instance. As soon as I have traffic, the connection is restored.
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Aug 19, 2012
The setup is Windows 7 64 bit transferring a 10 GB file to a Linux Ubuntu distro. Both have 1Gb NICs and the Switch is also a 1Gb switch.
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Sep 17, 2011
I am an unlucky person who still has a belkin router. Not only do i have a belkin router, my PC is also connected via 2 switch boxes all ethernet cabled together in and around the house.
I am unable to forward and ports succesfully because after i have saved the settings i check it with a port checking site and it says they're all closed.
I have also been getting disconnected from my router when its under stress (Most recently playing League of Legends) but my Dad's Pc (Which is only connected to the Belkin) still stays connected and hasn't experienced any disconnections.
My router model is F5D7634-4 v2, DHCP is enabled but only my Dad's PC appears, UPnP is enabled but doesn't seem to work and my fireware is up to date.
I used to have a different router before this one which never had these disconnecting problems.
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Jul 30, 2011
Ive been through 5 routers. All of them, except ONE has had a very annoying problem. The WiFi disconnects like anything randomly. The funny thing: The 4 that disconnect have all been working on 802.11n 300mbps. The 802.11g DG834Gv5 is as solid as a rock, maintaining connection for months on end, no wireless dropouts. Ive tried fiddling with the 4 routers (DGN2200, DG834N, Belkin N1 Vision, and another one ive forgotten), putting them onto 54mbps, which always works perfectley. When its on 145mbps or 300, they disconnect. No pattern, just fall off. When reconnecting, I can see them in the network selection thingy, but it just gives me the error 'Cannot connect to XXXX', only solution is to turn off the wireless radio and turn it back on via router interface.
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Dec 17, 2012
In the past week I have been getting totally random disconnects from my modem. Sometimes it works great, other times it will essentially cease to function as it tries to sync to bells lines, it seems to be worse at night from what I've seen. I have called my ISP over 4 times, had 3 separate techs come to my house and replace everything from the router to the Internet port down the road.The only thing that has not been replaced is the actual phone jack in my wall but every tech has looked at it and said its functioning fine. I am at a loss, and on the verge of canceling my service with my ISP at this point. Problem is I cannot get rogers for various reasons, so bell is my only option for high speed internet, so canceling with them sorts leaves me high and dry.
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Jul 28, 2011
When i look at the network wirless connection status something is constantly sending and receiving Bytes and lots of them.the modem gets warm from all of the activity.
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Feb 6, 2011
I've recently been being disconnected or dropped in multiple online games, but this is mostly aimed at World of Warcraft, It can be fine for hours or even days but it often comes to a point where I can't stay online for more then 10 seconds.The thing is, it works fine if I connect directly to the modem with out the router, but I have the same problem with 3 different routers including a rather expensive new one I just got.
- The Problem persists on multiple differnt computers with differnt OS and anti viruses
- I've forwarded all the necessary ports
- I've updated all the routers firmware
- I've adjusted my networking card
- I've power cycled the router many times
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Mar 19, 2012
After many many problems with my PC's wireless card since i bought it, i have finally got it to connect to the internet, and to allow myself to browse the web, but yet another problem has occurred, my download rate goes from fast (opening 4 links in quick succession) and all content is on the screen, to 20 seconds later, not being able to open 1 link without seeing a white screen, and it very slowly downloading all the stuff on the page, and this happens at random. so basically my internet goes from quick to slow to quick to slow
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