The log on NT says Duplicate IP found with the mac address xx.xx.xx.xx.xx.xx
All NT servers say the same thing with same exact mac addrss, but I cannot find the mac address at all. The log on the switches show nothing interesting. Thanks wrote in message news:[EMAIL PROTECTED] > Searching CCO, connot find a thing. Do you have logging enabled, if yes what > do the switches say? Try a protocol sniffer(receive span a problem server > port), sometimes it is nice to see ip handle things. And learn a lot... > > What did the NT system log say? > > Tried newer IOS? (long shot....) > > Martijn > > -----Oorspronkelijk bericht----- > Van: Firesox [mailto:[EMAIL PROTECTED] > Verzonden: maandag 11 augustus 2003 14:19 > Aan: [EMAIL PROTECTED] > Onderwerp: 3500XL - duplicate IP and Windows NT/2000 server [7:73868] > > > I have a bunch of 3500XL switches thruout my customer's lan. > They are having a problem with unknown mac keep appearing and disappearing > from the network. > > I can trace the mac-address of the unknown station by "show mac" from the > swtich CLI. > What's strange is that it appears at one switch, but a minute later it > appears in the different switch. > > what's even more strange is that all NT/2000 servers log shows there is an > IP conflict with this mac address. > Of course, the servers IP function stops due to this duplicate IP, but comes > back in a few minutes. > All the servers report the duplicate IP comes from the same mac address. > > Has anyone seen this problem? > > Thanks > **Please support GroupStudy by purchasing from the GroupStudy Store: > http://shop.groupstudy.com > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > **Please support GroupStudy by purchasing from the GroupStudy Store: > http://shop.groupstudy.com > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73915&t=73868 -------------------------------------------------- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
