5 Replies Latest reply on Jun 13, 2012 7:35 AM by Space_Robinson

    duplicate address detected with Linux host/guest

    stet86 Lurker

       

      Hi all,

       

       

      i've got this question for you: I have VMware server 1.0.4 and a number of linux and windows VMs on it.

       

       

      Everytime I start networking on linux machines, I get "duplicate address detected" error in /var/log/messages log, on EVERY linux machine.

       

       

       

       

       

      Is this normal? How can I fix this?

       

       

       

       

       

      Thank you

       

       

      Stefano

       

       

        • 1. Re: duplicate address detected with Linux host/guest
          Peter_vm Guru

          Best way is to find out where are those duplicates are coming from.

          Shutdown machine on which you have got duplication error. Ping that IP from another machine to find out if duplicate system responds. If it does, find out where it is and resolve this issue by changing it (on either one).

          • 2. Re: duplicate address detected with Linux host/guest
            stet86 Lurker

             

            Well thank you, but I wasn't clear enough I think.

             

             

            I have this problem on ALL Linux guests, and I double checked there aren't duplicate IP or MAC addresses....

             

             

            So what's wrong!?

             

             

             

             

             

            Thanks in advance

             

             

            Stefano 

             

             

            • 3. Re: duplicate address detected with Linux host/guest
              Peter_vm Guru

              Post "ifconfig -a" from Linux guest.

              Also, post error message and "vmware.log" from guest directory.

              • 4. Re: duplicate address detected with Linux host/guest
                stet86 Lurker

                # ifconfig -a

                eth0      Link encap:Ethernet  HWaddr 00:0C:29:B6:3F:C9

                          inet addr:192.168.0.202  Bcast:192.168.0.255  Mask:255.255.255.0

                          inet6 addr: fe80::20c:29ff:feb6:3fc9/64 Scope:Link

                          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

                          RX packets:176117 errors:0 dropped:0 overruns:0 frame:0

                          TX packets:61281 errors:0 dropped:0 overruns:0 carrier:0

                          collisions:0 txqueuelen:1000

                          RX bytes:17551540 (16.7 MiB)  TX bytes:2888931 (2.7 MiB)

                          Interrupt:177 Base address:0x1400

                 

                lo        Link encap:Local Loopback

                          inet addr:127.0.0.1  Mask:255.0.0.0

                          inet6 addr: ::1/128 Scope:Host

                          UP LOOPBACK RUNNING  MTU:16436  Metric:1

                          RX packets:205 errors:0 dropped:0 overruns:0 frame:0

                          TX packets:205 errors:0 dropped:0 overruns:0 carrier:0

                          collisions:0 txqueuelen:0

                          RX bytes:26482 (25.8 KiB)  TX bytes:26482 (25.8 KiB)

                 

                sit0      Link encap:IPv6-in-IPv4

                          NOARP  MTU:1480  Metric:1

                          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

                          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

                          collisions:0 txqueuelen:0

                          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

                • 5. Re: duplicate address detected with Linux host/guest
                  Space_Robinson Lurker

                  I'm having this same issue on 9 VMs running Player 4.0.3 with CentOS Linux.  My non-Player Linux boxes don't get this error.

                   

                  The Player VMs getting this error only have one inet6 line when I do an ifconfig like this:

                   

                       inet6 addr:  fe80::20c........................ Scope:Line

                   

                   

                  The non-Player boxes have two inet6 lines like this:

                   

                       inet6 addr:  2001:480:20:.................. Scope:Global

                   

                       inet6 addr:  fe80::baac...................... Scope:Line

                   

                  Any ideas?