Laptop Says Duplicate Ip Address?
Apr 29, 2012I have tried changing adapter settings, did the ipconfig /release, renew and still no luck.
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Cisco Wireless :: 5508 Duplicate Client IP Address
Dec 1, 2012I am using 2 anchor controllers 5508 as DHCP server. Anchor controller A is primary and anchor controller B is secondary. From time to time, client will complain "duplicate IP address error" when they try to connect guest wireless.First question: both anchor controller should have a recorder of IP address which is assigned to each PC, right?Second question: is there any way this type of issue can be avoided?
View 3 Replies View RelatedCisco Wireless :: Cat4500 / Duplicate IP Address On Vlan?
Feb 18, 2009I am getting the following error messge on Cat4500:
Feb 18 23:37:53.098: %IP-4-DUPADDR: Duplicate address 10.237.66.3 on Vlan601, sourced by 001d.096b.4858
Feb 18 23:38:58.092: %IP-4-DUPADDR: Duplicate address 10.237.66.3 on Vlan601, sourced by 001d.096b.47ed
Cisco Switching/Routing :: Duplicate IP Address Catalyst 2960?
Mar 14, 2013I have two 2960's in this new environment that I am administering. I am receiving a message on one unit (Designate it 2960-2) of %IP-4-DUPADDR: Duplicate address 192.168.168.8 on Vlan1, sourced by 3037.a63e.540. The "sourced by" address is the 2960-1. I do not know how these units were originally set up. How can I determine where the duplicate address is originating from.When I perform an ARP -a the address that corresponds to the 192.168.168.8 is the mac address of the ethersvi interface on the 2960-1. I
View 3 Replies View RelatedCisco :: LMS 4.0.1 - Duplicate IP Address Caused By ACE Active / Standby Setup?
Dec 17, 2011I am using LMS 4.0.1 to monitor the data center network devices. I have two core switches, each core switch has an ACE module installed on it. I have configured many virtual context on each ACE module, and these ACE contexts are acting as primary and standby roles. The problem i faced with is LMS reports the virtual ip address configured on each ace context as duplicate ip address, and i didn't know how to deal with it. As to my understanding, this should be the normal behavior due to my setup, but how can i remove this alarm on LMS 4.0.1?
View 1 Replies View RelatedCisco :: Windows 7 2008 Duplicate Static Address When Using 3750
Apr 30, 2013ISE 1.1.3
Cisco 3750 switches
Windows XP / 7 / 2008 clients
I'm having some weird issues were if a client connects to a switchport and happens to be using a static IP address then the client warns of a duplicate address problem. Also the client will then only show the default gateway within ipconfig even though the IP address / mask is still in the GUI network properties of the adaptor. This is happening with Windows 7 and Windows 2008 devices.
Windows XP clients don't get the issue.
Some clients will use 802.1x native supplicant and some will be authenticated based on MAB. Not noticed the problem with 802.1x clients but it always occurs on MAB.
I came across a similar issue here: URL
Going of that blog I tried using the "ip device tracking delay probe delay" command but the switches don't recognise the "delay" keyword.
The switches are 3750 switches running version 12.2(58)SE2.
All I have is "count, interval, use-svi" as extra options.
Catalyst 4500 switch guide has "delay" option but no "count, interval or use-svi".
The only way I have managed to avoid the problem is using the second solution which is a registry hack on each client. This is fine for the odd server but not realistic when there will be hundreds of other clients.
Cisco Firewall :: 5510 - Duplicate IP Address With ASA Inside Interface
Apr 5, 2012We've had issues with our Exchange 2010 server (running on ESXi 4.1) since its default gateway was changed to our new ASA 5510. They manifested as frequent Outlook client connection dropouts or as IP address conflicts whenever Exchange was rebooted. The temporary fix was to disable the Exchange server NIC, bounce the ASA and enable the server's NIC again. We saw poor performance from Exchange after a while again, but after some research and testing I realised that disabling proxyarp on the inside interface fixed the problem permanently.
However I've now realised that the client VPN no longer routes properly because proxyarp is disabled on the inside interface, so I still have a problem.
Changed IP Address Of Canon IRC 2880 Printer / Duplicate Name Exists In Network
Jul 24, 2011The company I work for has a small network and it has a windows 2000 server. When the Canon iRC 2880 printer is connected the server gives a error saying that a duplicate name exits in the network. I tried changing the IP address as well. When I changed the IP address of the printer the duplicate IP address moved the new IP address.
View 10 Replies View RelatedCisco Switching/Routing :: Nexus 7000 Not Generating Log For Duplicate IP Address?
Sep 19, 2011Recently I had came across 1 issue where one of the server IP had conflicted with VIP of Nexus core switch. The blade server was physically connected to Nexus Distribution switch which in turn connects to Nexus core. Neither Nexus core nor distribution had generate any logs in regards to IP conflict which ideally happens on Cisco catalyst switches. I haven't find any document on cisco as well as on internet for this issue . I dont know what logging need to enable on Nexus for this specific case . There are different logging levels define for every feature like hsrp, ip,monitor etc...
We have Nexus 7k with latest release 4.2(6) Software
BIOS: version 3.22.0
kickstart: version 4.2(6)
system: version 4.2(6)
Cisco Switching/Routing :: 3750G Found Duplicate Mac-address Error / Not On More Than 1 Port
May 11, 2010I've run in to this on 3750G's in a various sized stacks. We apply port security for a mac address on a single port (not existing on more than one port - that's a different issue that appears in multiple posts already).In this case:
1) We do a 'sho mac address-table and see that the device with the mac address in question lives on one port, port 1/0/x.
2) We apply mac port security for this exact same mac address to the same port it is already attached to. switch(config)#int g2/0/2 switch(config-if)#switchport port-security mac-address 001a.1ec8.abcd
3) Get this error: 'Found duplicate mac-address 001a.1ec8.abcd'.We again confirm that that is the only port on the entire switch that has this mac-address.Try the command again, same error.
4) We do a bunch of show commands, get in and out of the switch, go back and then try it again, and now it works, same command, same port and same mac address.
-Aging is default 300
-These are Cisco wireless AP's attached to the switch
-This occurs on different switches with different ports using different mac addresses, always same symptoms.
Cisco Switching/Routing :: 3750 - HSRP Duplicate Address 0000.0c07.ac01
Oct 23, 2012I have some question about HSRP in 3750 switch. I have two Cisco 3750 switch which configured HSRP. Let say, we have interface vlan 100 that join in HSRP group member 1. The configuration on both switch is like as follows :
SWI-3750-A (Active)
==========
interface Vlan100
description *** gateway User NPL ***
[Code]....
Cisco :: (Duplicate TCP SYN From Inside)
Nov 8, 2011I'm seeing a TON of traffic in my ASA logs (via ASDM) indicating the following:"Duplicate TCP SYN from inside: (valid internal address of one of our laptops)/50164 to inside: (address on our other subnet, still trying to trace it)/9100 with different initial sequence number"This looks like an attack to me, likely someone's downloaded something they shouldn't have and got an infected laptop. Why it's trying to "call home" to something inside our network is what puzzles me, though.Is there any VALID reason I would see these sort of messages in my log?
View 3 Replies View RelatedDuplicate Name Exists Even After Changing Name
Aug 29, 2012Everyday a few of the computer will error with "A duplicate name exists on the network:" A quick Google search shows the same answer EVERYWHERE on the internet. So I changed the names of a few of the computers too something I knew was unique. Still though the problem persists/ it afters the two XP bases computers the most, but my main workstations (windows 7 sp1) has had this error a few times, although it appears to have left for a while. I have a feenas server but Active directory is not turned on.My router is a e4200. I was using DHCP server on there (and would very much still like to) although I have turning it off, rebooted both the router and the computers but to no avail.
View 19 Replies View RelatedWarning - Got Duplicate TCP Line
Feb 20, 2011I'm running web server on Linux Redhat when i run
# /etc/init.d/tomcat status
I got a number of lines:
warning, got duplicate tcp line
warning, got duplicate tcp line
warning, got duplicate tcp line
warning, got duplicate tcp line
Tomcat running in normal mode Also , I can see that Tomcat unstability makes some strange behaviour in the system overall.
New Laptop Cannot Acquire Ip Address?
Jun 6, 2011Just got my old laptop for my son to use , but when i try to connect it just keeps saying aquiring network address, but nothing happens. no good on laptop, but my other one works perfectly ok.
View 4 Replies View RelatedARP Behavior In Case Of Duplicate IP Addresses In Same LAN
Aug 24, 2012In case I configure duplicate IP addresses to the same VLAN(two interfaces in VLAN 1100 have IP address 192.168.2.2) I see following ARP messages rapidly(those six messages were received in less than 2ms time-frame)
View 2 Replies View RelatedCisco :: LMS 4.2 Duplicate Events With Different Component Name
Apr 16, 2012We have LMS 4.2 installed and added devices;Now if for example a device is not reachable we get two messages with same failure ;only the component name is different
- one event with "dns" in component name
- one with "dns(ip)" in component name
dns == hostname
Wireless :: Ip Address Is Not Showing In Laptop?
Jul 7, 2011i am trying to connect(internet) my laptop but its is not connecting through WIFI.diffrent ip addresss is showing on a laptop but my ip address is not showing and it is not connecting.
View 1 Replies View RelatedTracking Stolen Laptop With MAC Address?
Jan 26, 2011my laptop has been stolen but I still have the box with all the details( Serial Number, MAC address for LAN and Wireless Product code etc) and I was wondering if there is any possibility in tracking it using for instance the physical MAC address.... I am sure that the thief reinstalled windows on drive C, as I was able to use and register my genuine copy of Win7 on a different laptop.
View 2 Replies View RelatedLaptop Does Not Change IP Address Through DHCP
Mar 8, 2011The laptop can connect to the internet using the wifi card. However, it cannot connect to the internet when using the wired connection but it can be pinged from other machines at work. The NIC does not pick up a different IP address even after releasing and renewing the IP address through cmd. I have uninstalled and reinstalled the NIC. The NIC is working because when I set a static IP address the machine can connect to the net. Using DHCP it goes back to that same IP address. I have tried a winsock repair as well with no go, as well as taking the machine off the domain and re-joining it. Is there something I can do on my end to get a different IP address through DHCP or do I have to get a Network engineer involved? This is a machine on a corporate LAN?
View 15 Replies View RelatedConnect My Cell To Laptop Using Ip Address?
Apr 1, 2012i want to connect my cell phone nokia-c1 by using mac or ip address with my laptop dell inspiron5110 .how can i do that.just want lo learn
View 1 Replies View RelatedHow To Get Ip Address In Windows 7 64bit Laptop
Mar 6, 2013i want to execute my project in lan so i need ip address in laptop.
View 1 Replies View RelatedUnable To Obtain IP Address On 2nd Laptop
Feb 7, 2011I have a netgear wireless router, not sure on the model but can find out if required. My xbox360 is hard wired to the router and my Laptop is connected wirelessly to the router using the internal wireless connection on the laptop. The other half has a laptop too, for some reason her will not connect wirelessly, just gets stuck on a constant loop of ''aquiring ip address'' and does not get past this point. Laptop works if hard wired to the router. how do i get ip address to assign.
View 1 Replies View RelatedTrack Stolen Laptop With MAC Address?
Oct 22, 2011Is there a chance of tracking a laptop using Their MAC or IP Addresses?
View 6 Replies View RelatedWireless :: Duplicate Name Exists On Network Error?
Feb 10, 2011Using windows xp. how do i find and delete network name?
View 1 Replies View RelatedCisco WAN :: Duplicate License Error On 861 Router
Apr 3, 2011I am installing a advance ip service licnese on cisco 861 router but it gives the following error message
Router#license install flash:FCZ143294BM_20110221232946625.licInstalling licenses from "flash:FCZ143294BM_20110221232946625.lic"Installing...Feature:advsecurity...Failed:% Error: Duplicate licenseInstalling...Feature:advipservices...Failed:% Error: Duplicate license0/2 licenses were successfully installed2/2 licenses were existing licenses0/2 licenses were failed to install
Router#
Also show ver shows the following
License Information for 'c860-data' License Level: advsecurity Type: Permanent Next reboot license Level: advsecurity
Cisco Wireless :: Different Duplicate IP Messages In 2504?
May 26, 2013My customer is seeing these Errors coming up on one of his 2504 WLC's (ver7.3) The MAC's and IP addresses Mentioned seem to be completely fictitious as the customers IP plan is way off these subnets and the vendor lookup tool cant resolve the MAC addresses.I can confirm that there is no conflict.I've seen them appear on other 2504's across his network on seperate occasions.
View 4 Replies View RelatedCisco Firewall :: Duplicate ARP Entry With ASA 5510
Jul 17, 2012I am having peculiar issue in my setup. I recently replaced my ASA 5505 (8.2.1) with ASA 5510 (8.4.3). Everything works fine for a while suddenly I see some of the servers will not be reachable from the LAN all the servers gateway is my switch. If I check on my Dell switch the particular server's arp entry on the connected port is same as ASA physicall MAC. If im reverting to 5505 ASA everything goes smooth without any issue.
View 6 Replies View RelatedCisco Firewall :: Duplicate Rules On ASA5585
Oct 17, 2012I got some issues with my CISCO ASA, the thing is that when I add a new rule on the device this rule duplicate and goes to the bottom. We already tried to delete the duplicate rule but it always show an error.
-Model 5585
-ASA Version: 8.2(5)
-ASDM version: 6.4(5)
Laptop Can't Acquire Working IP Address Wired
Mar 8, 2011. The laptop can connect to the internet using the wifi card. However, it cannot connect to the internet when using the wired connection but it can be pinged from other machines at work. The NIC does not pick up a different IP address even after releasing and renewing the IP address through cmd. I have uninstalled and reinstalled the NIC. The NIC is working because when I set a static IP address the machine can connect to the net. Using DHCP it goes back to that same IP address. I have tried a winsock repair as well with no go, as well as taking the machine off the domain and re-joining it. Anyone see this before? Is there something I can do on my end to get a different IP address through DHCP or do I have to get a Network engineer involved? This is a machine on a corporate LAN.
View 3 Replies View RelatedLaptop Will Not Connect To Wifi / Cannot Renew Ip Address
Jan 27, 2012I purchased this pocket wifi last year and I use it with my iPad and used to use it with my current LAPTOP. It still connects to the iPad, but will not connect to the Laptop anymore, the laptop says it cannot renew IP address.
[code]....
Asus X53E Laptop Saying About IP Address Conflict?
May 26, 2012My Asus X53E laptop says I have a conflicting IP address. I should be the only computer on my network and able to access my internet. I have had my credit used up before but Telstra said this isn't possible. How can I stop any neighbour or anyone else accessing my laptop and internet
View 1 Replies View RelatedWindows 7 Laptop Doesn't Have Valid IP Address
Nov 14, 2011I can sign on with all tools (i.e. phone, PC, etc.), but for whatever reason, I am having issues connecting my laptop. I'm running Windows 7 on a newer laptop. I tried changing the password and it worked for a minute, but now that's not doing the trick. It keeps telling me it doesn't have a valid IP address.
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