1 2 Previous Next 23 Replies Latest reply: Mar 19, 2014 8:08 AM by Dude! Go to original post RSS
      • 15. Re: How to start eth1 on boot.
        Dude!

        I don't know what you installed or configured, or what other network devices are online, but it might be a good idea to disable network manager, which may overrule the automatic startup of network devices. NetworkManager is a dynamic network control and configuration system that attempts to keep network devices and connections up and active when they are available.

         

         

        What is your following output:

         

        chkconfig --list network

        chkconfig --list NetworkManager

        • 16. Re: How to start eth1 on boot.
          1769248

          boot log...

          ip6tables: Applying firewall rules:                        [  OK  ]

          iptables: Applying firewall rules:                         [  OK  ]

           

           

          Bringing up interface eth0:  Determining if ip address dummy is already i

          n use for device eth0...

           

           

          Bringing up interface Auto_eth1.OLD:  Determining if ip address dummy is

          already in use for device eth0...

           

          ***************************************************************************

          chkconfig --list network

          network         0:off   1:off   2:on    3:on    4:on    5:on    6:off

           

          chkconfig --list NetworkManager

          NetworkManager  0:off   1:off   2:on    3:on    4:on    5:on    6:off

          • 17. Re: How to start eth1 on boot.
            user12611628

            Which version of Oracle Linux are you using? Just a guess, but can you try setting ARPCHECK=no in the ifcfg-eth0 file and then reboot to see if it helps?

            • 18. Re: How to start eth1 on boot.
              1769248

              OEL 6.5

               

              I made that change and it didnt help.

              • 19. Re: How to start eth1 on boot.
                Robert Chase

                Reading over this it sounds like the VM was cloned within VMware and has a duplicate MAC address which is why eth0 is having issues.  You might find this blog article I wrote a few years ago helpful for fixing the issues on eth0. Disclaimer: This is an Oracle Linux forum and it sounds like you may be having problems with the hypervisor layer rather than Oracle Linux.

                 

                Robert Chase: Resolving MAC Address Conflicts in VMware ESXi Word of caution this does require editing VMX files.  I would not reccomend this for a production system.

                • 20. Re: How to start eth1 on boot.
                  Dude!

                  What happens if you type the following:

                   

                  chkconfig NetworkManager off


                  and restart the system.


                  And btw, what is your current runlevel?


                  runlevel

                  • 21. Re: How to start eth1 on boot.
                    1769248

                    Could this really be the issue, I can start eth0 and I can remote into the server? eth0 just doesn't start automatically.

                    • 22. Re: How to start eth1 on boot.
                      1769248

                      We might be getting closer?

                       

                      Here's what I did..

                       

                      chkconfig NetworkManager off


                      runlevel

                      N 3


                      shutdown -r now


                      I couldn't ping the box so I ..


                      ifup eth0

                      RTNETLINK answers: File exists


                      ifdown eth0

                      ifup eth0


                      Then I could ping.

                      • 23. Re: How to start eth1 on boot.
                        Dude!

                        Are you using public or private TCP/IP addresses? If you use private Private network - Wikipedia, the free encyclopedia then there is no need to post "dummy" since those addresses are not usable over the public Internet anyway. Perhaps you can post the file without "dummy" so we can see if you have any typos.

                         

                        Second, does the interface come up if you remove the DNS entries from the file?

                        And last not least, what exactly are you using, e.g. Oracle Linux 6.5 x64.

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