My 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 RepliesI have a WLC 2504 with 5 AP licenses for which I have installed an adder license via GUI. The installation completed successfully, but I still cannot view the new license. The maximum number of APs is still showing as 5 and in fact I cannot add more that 5 APs. I tried installing the license file again, but now I get a "duplicate" error.
View 4 Replies View Relatedi have currently a 2504 WLC and some 1602i AP's.Basically so far i have configured the WLC as per the guidelines on the startup and now i want to join the AP's (which i haven't managed to do yet) and the setup the wireless network.I can get the AP to join and pickup an ip address and that is it. It comes up with different error messages from the WLC, and through hyper terminal, none of which i understand but the main jist is the following:
*spamApTask4: Feb 19 15:05:56.171: #CAPWAP-3-DECODE_ERR: capwap_ac_sm.c:3844 Error decoding Join request from AP 6c:20:56:0e:23:e0
AND
0Tue Feb 19 15:06:19 2013AP with MAC 6c:20:56:0e:23:e0 (AIR-CAP1602I-E-K9 ) is unknown.
AND
I 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 RelatedI 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
First here is our network breakdown
8 Windows 2008 Servers - UN effected
5 Windows 2003 Servers - effected with dupe IP's
We have AP - A, B and C all configured static and outside of our DHCP scope
A - 104.240
B - 104.241
C - 104.242
WAP A is setup to allow the Mac's of A and B to repeat its signal. The issue starts about 1-2 minutes after I set B and C to client/repeater and select A in site survey then save the settings. Obviously its weird that only our 2003 servers are getting this error.
The system detected an address conflict for IP address 192.168.105.201 with the system having network hardware address *MAC ADDRESS OF ROUTER A*. Network operations on this system may be disrupted as a result.
Using windows xp. how do i find and delete network name?
View 1 Replies View RelatedI have multiple wireless access points plugged into a 3560X. When the wireless clients begin roaming they cause duplicate MAC enteries to be created and this causes the switch ports to flap. Is there a way to configure the switch to either ignore the duplicate MAC enteries on the switchports that have been connected to the APs or is there a way to have the ARP tables update and resolve the conflicting MAC enteries with out causing the switchport to flap?
View 3 Replies View RelatedIn the process of setting-up a E2500 Linksys router, I set-up my secured network which is working fine but also (I do not know how I did this??) set-up the same named network but it is unsecured. How do I delete this unsecured network.Do I need to set-up the router again?
View 4 Replies View RelatedI'm using .01 firware and I notice that after I reboot the router I get duplicate filenames on the HD attached to it with the video files. What folder or config file can I delete so it will do a clean rescan? please fix the E4200 media server in .02 firmware
View 9 Replies View RelatedIs there a way or software can I use to send messages to all wirelessPCs in my network without doing any configurations or installation on those PC.I've used net send command for that, but is there another way?
View 3 Replies View RelatedI have a WLC 5508 and several 1142 access points. The APs are not showing up in the WLC. When i console into the APs, im getting the following errors,
*Dec 26 23:04:28.035: %DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to 65.125.15.212:5246
*Dec 26 23:04:28.074: %CAPWAP-5-CHANGED: CAPWAP changed state to
[Code]....
Ive tried resetting the WLC, reloading the APs. I even factory defaulted one of the APs and still getting the same message.Ive verified that the WLC is set to accept MICs and SSCs.
I'm building the use case to test / detect for rogue devices on the network. I have in my enviroment Lan controller 5500 controller with AP (aironet 3500). I want to detect for rogue devices/ap connected to my network. I know before i can see this activity on the network i have to configure the controller / ap to detect this behavior.
Authorize AP's against AAA function to make sure that all the AP's registering to your WLC are authorized AP's of the network.By enabling this feature, only those AP's whose mac-addresses are present in the authorization list, will be able to register to the WLC. url...
Using Rogue detection. feature, the WLC will be able to detect any AP that is not a part of its RF group and contain it. url...the forum I have seen other talks about the same issue and saying that if I have any APs in "Rogue Detection" mode sitting on the trunk port on the switch then only, this AP will detect the Rogue on Wired.
I'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 RelatedWhen I tried with Security disabled, I could FTP and see my drive from an external network. However, once I rite & Security is enabled with write and read "" granted with a user profile created, the FTP Client has some error message; Could it be due to mode in FTP settings? (passive is set)
View 1 Replies View RelatedWe 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
Everyday 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 RelatedI'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.
I have tried changing adapter settings, did the ipconfig /release, renew and still no luck.
View 1 Replies View RelatedI 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
I 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 RelatedI 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)
In 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 RelatedI have a little problem with a Easy VPN, this is the topology:
-One router 2811: This is the Easy-client (Who has a ip address by dhcp)
-One ASA 5540: This is the Easy-server
I have just moved to the 3750X switch and have connected it to a 6509E. From the beginning I was having OSPF encryption errors, followed by flood warnings, LSA issue's, duplicate IP's which is baffling me.
There are no IP's which match on either switch however the 3750X was continually power recycling causing the interfaces drop continually.Even after disconnecting from the 6509 the 3750X continue to behave in the same manner. Could there be some issue with this switch?
I have a duplicate router ID problem that is confusing to me. A 6509 and 4510 swich both show the same router ID, but only the 6500 has the router ID IP address configured in it. We are running EIGPR. The 6509 has L0 as 164.72.239.1 configured, which is it's router ID. The 4510 doesn't have 164.72.239.1 configured on it, yet that's what it's router ID is. Below are a few show commands displaying this - and as you can see from the 'show run | include 239' from the 4510 there is no 164.72.239.1 configured on it:
6509 chassis
interface Loopback0ip address 164.72.239.1 255.255.255.255end
RS6509-Core-A#sh ip eigrp topIP-EIGRP Topology Table for AS(1)/ID(164.72.239.1)
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s -
[Code].....
why the 4510 has that router ID?
I know I can configure a different router ID on the 4510, but I'm curious as to why it is the way it is.
I 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 RelatedI 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 RelatedI have a setup where a spoke (cisco 1841) is sending a multicast feed to a hub (cisco 2951) via a DMVPN tunnel on the Internet. The feed arrives on interface fa0/0 of the cisco 1841 and is forwarded to the tunnel interface. It is about 160,000 kbit/s and 18 pps. This always looks the same:
cisco2951-1-hub#sh run int tu10
!
interface Tunnel10
description DMVPN TUNNEL
[Code]...
ISE 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.
Trying to apply this config to a 2900 router and getting this error message. [code] This works ok in in a 2800 router using 12.4(25d) spservices IOS
Not working on 2911 using 15.2(3)T2 ipbase image.
We'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.
In NX-OS release 4.2(8) a feature was introduced to supress duplicate IP address warning messages in DCI environments.When using the same HSRP addresses in both DCs but blocking the HSRP exchange, ARP still detects these duplicate configuration and writes log messages. There obviously is a feature to suppress this but I do not find any reference how to enable it.url...
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