Identifying Switches / Physical Path On A LAN?
Apr 21, 2011
I'm a network admin for a medium-sized (500-700 people) multi-site business and I have a simple question. Is there any utility or method I can use to identify the physical path a packet of data takes from a workstation on the LAN to a server on the same LAN?
For example, if I send a tracert command at google.com, I can see every router the packet touches before it gets to Google's router. Is there a method I can use to determine a similar path with switches in my internal network? If I use tracert or pathping, I only get a single hop since the workstations are on the same LAN as the servers even though I know there are two physical switches between them.
Basically, I want to send packets from a group of workstations behind a couple switches to a server and see if the packets are being lost in the switch somewhere to identify if there is a failing switch or something causing network slowdowns. map out the network more accurately so it would be useful to know.
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May 5, 2010
have just set up a WLC 4402 as a Guest WLAN controller on the DMZ of our network. I have successfully managed to get our internal controllers to connect to it, with the exception of 1. it says the control path is up but the data path is down. the other 14 controllers worked fine, and in testing the last one was OK but it is now not working properly. the 2 controllers can ping each other but just won't create the data tunnel. there is a firewall in the middle but that has been set up to allow traffic between the 2 groups of controllers to be unrestricted.
the internal controllers are 4404's and all controllers are running the same version of code. 5.1.151.0.
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Feb 12, 2013
Lets say i have 2 3750 switches stacked via backend stack cables. Now if a packet needs to go from 1 switch in the stack to second switch in the stack, will it travel via stack cable or do we need to connect both switches via uplink ports (ethernet or sfp). I tried reading datasheet but it no wheres mention the actual frame path between switches in stack.
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Sep 11, 2012
I am in the process of upgrading our stack of 4 switches consist of WS-C3750G-48PS. Upon reading release notes found that there are two versions of release notes 1 day apart, the one 02 Sep 2012 saying that WS-C3750-48PS is not supported in this version. Then in release next day 03 Sep 2012 that note has been removed. Which one is correct. Is it supported with my model of switch or not.also unable to update boot path in the stack switches, "switch all" is not supported in the current IOS. Master switch has new boot path but unable to change in slaves.
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Sep 19, 2011
What the problem that whenever I try to connect to the internet it will forever say "identifying" and never get internet access. It is the same problem with both wireless connections and when I have an Ethernet cable plugged in. I'm sure its not the internet that's the problem because I am using the same connection right now but with a different laptop.
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Sep 24, 2011
ok so the problem is our old modem/router combo finally died after 6 years of doing good. After that we bought a new router and used an old modem, that seemed to work for about 2 weeks problem free. But after that the internet would just drop when someone would play a online game, stream a big video, or after a random amount of time would drop on its own. The connection icon would loose its globe and have two screens with each screen flashing say identifying. after that we got a new modem and still have the same problem. We have two laptops connected to it and they can connect to the router but not the internet as-well.
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Mar 22, 2011
I'm at my girlfriend's house and every laptop in the house works beside hers! I tried mine and it connects flawlessly also my itouch and my eee-pc also connect without any trouble but her laptop is stuck on Identifying i tried the whole netsh reset thing and sadly we cannot have access to her router as her dad hates it when we play in his Linux based stuff anyways any simple fix would be welcome, i hope no one will suggest changing routers/reinstalling the whole OS[CODE]
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Apr 20, 2011
Out of all the computers in my house there is one computer that does not seem to be able to get an internet connection. Usally I would fire up the computer, then unplug and put back in the wireless device and it would start working but just recently no matter what I try it will not work. When I set the computer up to connect with a static ip, i get a local connection only (or at least thats what networking centre says) and when i rely on dhcp i get 'identifying network' forever. No network settings have been changed and I have tried an ethernet connection as well which also didn't work. I have tested the wireless device on another computer and it works fine.
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Jul 24, 2012
My work wireless network is stuck on identifying. It works for ALL other computers in the office. It works when I am wired to the router. I've tried most things that forums tell me to do. Below is the IP config. It is only this network and one other. Both are provided by verizon if that makes any difference.
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:UsersShaun>ipconfig
Windows IP Configuration
Ethernet adapter Local Area Connection 2:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
[code]....
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Aug 11, 2011
I've been having this problem on my computer for about a month. I've seriously done everything everyone has suggested after searching every inch of every tech forum. The above did not work for me.
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May 7, 2013
Region : Italy
Model : TL-MR3040
Hardware Version : V1
Firmware Version : TL-MR3040_V1_120822
ISP : Vodafone IT
Basically, the 3g port is absolutely not working in both devices.I've tried with 4 usb 3g adapter (all huawei and listed under compatible), THEN i bought a MA180 (yes, the TP-LINK 3g usb stick) and even this is not working.The MR3040 if i connect the MA180 simply will blink the MR3040 3g led ONCE, after that it simply does nothing.if i go under the status page on 192.168.0.1 it basically says:"3g usb: Identifying.." and it still stops there for even an hour.Same on the MR3020.
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Jul 25, 2012
I've recently been on a kick of acquiring a small collection of the old school stackable Linksys equipment, and in one of my searches I came across a picture of one I'd never seen before.
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Jan 21, 2012
i have tried many things i have tried to reset my router with the cmd prompt i have checked my drivers i have tried the simple things and at this point.
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Sep 2, 2012
A day ago, I was having trouble with my apartment modem, and due to a busy schedule, was only able to do a quick "Unplug and reset" which seemed to work at first, but eventually it stopped working all together. Today, I traveled from my apartment to my "home" home, where the wireless network is set at a "Home" security level. However, my wireless now will not connect at all. It continues to cycle through "Identifying" yet cannot make the connection. It works through a LAN connection however.So far, I've attempted the follow:
- run>ipconfig/all, ipconfig/reset, etc
- winsock reset
- system restore
My computer is a Samsung RC512, running windows 7. Here's the paste from my ipconfig/all:
Windows IP Configuration
Host Name . . . . . . . . . . . . : PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : hsd1.pa.comcast.net.
Wireless LAN adapter Wireless Network Connection 2:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
Physical Address. . . . . . . . . : DC-A9-71-93-16-52[code]....
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Aug 30, 2011
I cannot connect my laptop to any of the normal wireless networks I use.It says, it's connected with good signal strength but than it never stops "identifying" and doesn't load any pages.
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Feb 19, 2012
It all happened pretty suddenly, from 1 day to the other, suddenly i was unable to connect to my home network. I started to troubleshoot, search forums etc. But no luck. I triedand look for the problem myself and found that thenetwork was enabled but it stayed on "identifying network". By clicking buttons from here and there on thecontrol panel i found something like a network recognition or something like that and a yellow little prompt appeared on the top of the explorer saying something like the network idetification was disabled, so i clicked and selected enable but it prompted again, so i just entered to the advanced network recognition center and noticed that on the public and private tabs netowrk recognition was disabled, so i clicked enable on both and saved changes, but the changes dont save, its like if i wasn't on a administrator account (but i had no error messages, it just wont enable).
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Jan 19, 2012
Where I tried to conect to my home wifi or the school's wifi and it just says "identifying" on the network connections and on the list of wifi networks around in the notification area it says "No internet acces" and can't connect to the internet. I stoped trying to look for a solution but I don't have internet at home
[code]....
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Oct 1, 2011
Yesterday I got one my computer and was on my internet then i closed my browser and 10 minutes later got back on but then it wouldnt let me so I went to my networking and sharing center and its stuck at Identifying..
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Nov 22, 2011
So here's a fresh spin (and not in a good way) on the seemingly common port-flapping issue, where a windows vista/7 machine's ethernet port vacillates between "enabling, identifying,network cable unplugged." I've tried the fixes I've seen around, like forcing the speed to 10 or 100Mb duplex,etc. But I think the problem goes deeper than that -or drivers or faulty NICs. Its acting like it's in the cabling. . . but not. Any advice would be welcome.Just switched from one DSL provider (Bell) to another (Teksavvy). Connected via a dry loop. When the Bell tech first set it up a year ago, he did it like this: Patch cord frome the Bell 2Wire modem/router combo to a female coupler. Female coupler attached to cat5 cable running about 25/30 feet along baseboards around the corner to another female coupler. Patch cord from female coupler to NIC in the back of my box. This worked fine. New set up with Tek savvy is as follows: DSL modem via patch cord to (wireless) D-Link router. D-link router connected to computer by same aforementioned setup. This results in the port-flapping named in the title of this message, on the hard line only. Any change in my computer was ruled out by connecting a brand new, never been connected laptop and the same terminal as my computer. Results in port flapping. The same laptop connected to the router by just the patch cord results in a perfect connection. I've tried moving the patch cords around, it doesn't change the results, so they're fine. I have no way of testing this long stretch of installed cable in the middle, with the couplers on it, since I don't have an equal length cable to try out anywhere, but I'd be surprised if that just died after a year's use exactly when I connected new hardware to the other end of it. Running windows 7 with a RealTek NIC on my box. D-Link router (will check the model later, at work at the moment), and TP-Link DSL modem. The system delivers wireless internet flawlessly.
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Mar 16, 2011
My company uses an ASA 5520 to authenticate VPN using the Anyconnect client. We would like to deploy a second authentication method such as Host Scan (CSD.) Our ASA is currently running on a "Plus" license. As I understand CSD will only work with "Premium?" If this is correct are there other options for two part authentication? We're also considering using FOBs and have ruled out using the NAC.
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Aug 10, 2012
For a while now when I try to connect to my wireless router (Netgear WNR1000) It says "Identifying..." for a while, but then it will disconnect . My wireless only works sometimes if I reset the router every once and a while. Even then it will connect properly with my computer for two days tops. The wireless works on the other computers in the house, just not mine. I've checked all of the wireless settings to make sure they match correctly to the network .
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Feb 10, 2012
why I have perfect internet access on my Desktop and other lap top but on my Toshiba Windows 7 I get the "Identifying...""No Internet Access" every time. Ive tried deleting the bonjour service.
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Dec 21, 2012
I am having Dell Inpiron 4030. Following are specs
Quote: Quote:
Processor: Intel(R) Core(Tm) i3 CPU M380 @2.53GHz
RAM - 2.00 GB
OS - Windows 7 ultimate 32 but
I am unable to connect to the wired network. We have a 4 port prolink router and there is no error with it. I know because I am using the same cable for my laptop, which I am using for my desktop. I just unplug it from the desktop and plug it to laptop. I am unable to provide any specs from the desktop because there is an error in that computer.
However, I can give ipconfig/all data from my father's computer, which use another port of the same router.
My laptop is working perfectly with the Mobile BroadBand. And this is a dual boot computer with Ubuntu 12.04 LTS and the cable is fine with Ubuntu.
Following is the result of ipconfig/all
Quote:
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:Usersyohan>ipconfig/all
[Code].....
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Mar 22, 2013
Region : India
Model : TL-MR3220
Hardware Version : V2
Firmware Version : V2
ISP : Reliance netconnect Vendor (ZTE Model AC2736) CDM
Region : India
Just now I bought this router. When I am trying to configure it with default firmware is not identifying the modem itself. So Afyter facing this problem, I updated my Router firmware(TL-MR3220_v_2_120822) and retry the process. But this time, It identified the modem for few seconds, then its changes its trying to connecting, after that its change it state to unplugged.
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Oct 2, 2012
So we have multiple ISE Servers with differing personals. I was having an issue with our new ISE setup not identifying AD Group Attributes when using them in Authorization rules. We have 2- 3395 appliances running Admin and Monitoring/Troubleshooting Personas and 2- 3395 appliances running as Policy server personas. We are running v1.1.1.268 with the latest two patches. I was unable to pull Active Directory Group Attributes in any of my Authorization rules. After Resyncing all the boxes with the Primary Administration box I was able to do this. There is no bug listings for this occurrence nor do we have Smartnet to call support for other reasons.
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Jun 27, 2011
I purchased a new Acer 5742G-6600 from Newegg about 2 weeks ago.When using my wireless connection, I am randomly dropped, then reconnected to the internet. This effects gaming (constantly disconnected from WOW after maybe 2 or 3 minutes) and streaming video. I can connect directly to the router or modem by cable and the issue never occurs. My girlfriends laptop is able to connect to the wireless connection with no issue. We also had a friend over on his laptop, and he had no issue with the wireless connection.I have uninstalled and reinstalled the wifi card drivers (Atheros AR5B97 Wireless Network Adapter), disabled the power management features, and updated Win 7 64-bit.
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Mar 28, 2013
I'm thinking of purchasing a Cisco Linksys EA6500. I need a router that can one monitor bandwidth used by device. Keep exceeding our ISP's network bandwidth allocation, need to identify the devices that are causing this high usage and be able to do so from the router. Does the EA6500's standard software support this, is their router software one can obtain for the unit that does this or is there another home router option that can perform this function?
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Jan 29, 2012
i want to know the physical connectivity of the two pc's
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Apr 22, 2011
I have tried changing both the router setting and the computer to force a 100 Mb/s connection, but this results in a complete failure to connect. The LAN connection only works in 10 Mb/s mode.This is the first time I've ever experienced a LAN that was slower than my internet connection.Yes, I have upgraded to 1.02A firmware.
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Aug 9, 2011
Is-it possible to configure a dedicated virtual IP address for VPN terminaison on ASA in version 8.3 and later ?I don't want to use physical IP address on my outside interface.
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Apr 12, 2013
Here is the current logical routing path of the network I've inherited:ISP_ASA_1800 --- P2P link_ LAN, However, the equipment is setup up in this inefficient physical topology: Internet_ASA_LAN switch --- 1800 --- P2P link_LAN, The 1800 is the default gateway for all LAN hosts. This means that all traffic not destined for the LAN goes first to the 1800 which has routes for the Internet and for the P2P. If traffic is destined for the P2P, this is no problem. If traffic is destined for the internet, then in my opinion this is an inefficient routing path because the traffic ends up doing this:LAN host > switch > 1800 > back to the same switch > ASA > Internet, So I am thinking of setting up the physical topology to match the logical topology like this:Internet, ASA_1800 ---- P2P link_LAN switch_LAN hosts This means I will connect the 1800 and ASA directly to one another. Am I on the right track? Is this the best way?
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Dec 18, 2012
I recently bought my book live 3TB everything works well with it, I can stream movies upload them, remote access and much more with a good speed, the problem is when I direct connect my book live to my PC via Ethernet, windows can't find the path of the drive. However, I tried to direct connect via Macbook and it works with no problem.I tried to fast reset my book live to factory default settings and direct connect from my book live to my PC via Ethernet, simply it worked! But then it stopped working for some unknown reason.Its a pain when i need to transfer large files via wireless.
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Dec 26, 2012
Recently I've changed my all local I.P. series in the server from 192.168..to 10.219..& the server 2008 providing through DHCP.So, I've to re mapped the share folder to change the path in every system.But few files in 1 PC are still keeps the old share folder path when trying to open & failing or taking long time! NOT all files in that machine
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