Topic
11 replies Latest Post - ‏2009-10-30T19:34:59Z by SystemAdmin
SystemAdmin
SystemAdmin
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Pinned topic IBM x3550 7978 Ubuntu NIC issues

‏2009-09-11T19:37:35Z |
Hi All, first time poster on here and first time user of IBM servers.

I'm having a few problems with the interface card on my server, I have installed Ubuntu 8.04 and also tried 9.04 but having the same problem, install goes well and discovers that I have two Ethernet adapters (install thinks its two) which are eth0 and eth1, I get asked which one I would like as the primary card and I select eth0.

Install goes well and finishes with no problems, I very LAN connectivity by using ping, so as it stands I have eth0 with an IP address of 192.168.3.242.

Now I want to add an IP address to eth1 so I issue the command
'ifconfig eth1 192.168.3.240'
'ifconfig eth1 netmask 255.255.255.0'
'ifconfig eth1 up'

Which at this point I can ping 192.168.3.240, problem is I have not inserted the Ethernet cable, and when I do insert it eth0 drops.

Has anybody come across this issue before and if so I would I go about resolving.

Many thanks for reading and if you need more information I will happily provide

Martyn
Updated on 2009-10-30T19:34:59Z at 2009-10-30T19:34:59Z by SystemAdmin
  • ishields
    ishields
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    Re: IBM x3550 7978 Ubuntu NIC issues

    ‏2009-09-15T14:08:30Z  in response to SystemAdmin
    If you're using Network Manager, then I think that's the expected behavior. See the thread on internet connection sharing on the Ubuntu site which describes related issues.

    Ian Shields
  • SystemAdmin
    SystemAdmin
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    Re: IBM x3550 7978 Ubuntu NIC issues

    ‏2009-10-14T12:15:37Z  in response to SystemAdmin
    Still having the same problem, can anybody help at all?

    Thanks
    • ishields
      ishields
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      Re: IBM x3550 7978 Ubuntu NIC issues

      ‏2009-10-14T12:37:15Z  in response to SystemAdmin
      Did you try stopping Network Manager?

      Ian Shields
      • SystemAdmin
        SystemAdmin
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        Re: IBM x3550 7978 Ubuntu NIC issues

        ‏2009-10-14T13:54:04Z  in response to ishields
        Network Manager, is that in GUI mode only?

        Thanks for the reply
        • SystemAdmin
          SystemAdmin
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          Re: IBM x3550 7978 Ubuntu NIC issues

          ‏2009-10-15T11:10:45Z  in response to SystemAdmin
          I think that NM is only whilst in GUI, I have no GUI at all.

          Thanks
          • SystemAdmin
            SystemAdmin
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            Re: IBM x3550 7978 Ubuntu NIC issues

            ‏2009-10-20T22:00:23Z  in response to SystemAdmin
            Please, can anybody help at all?
            • ishields
              ishields
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              Re: IBM x3550 7978 Ubuntu NIC issues

              ‏2009-10-20T23:16:14Z  in response to SystemAdmin
              Network manager isn't intended for servers, but runs as a daemon, so possibly could be installed and running. What do you get from running
              dpkg -l network-manager

              Ian Shields
  • SystemAdmin
    SystemAdmin
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    Re: IBM x3550 7978 Ubuntu NIC issues

    ‏2009-10-30T10:04:27Z  in response to SystemAdmin
    Thanks for the reply Ian

    dpkg -l network-manager
    No packages found matching network-manager

    This is a strange one
  • SystemAdmin
    SystemAdmin
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    Re: IBM x3550 7978 Ubuntu NIC issues

    ‏2009-10-30T10:13:42Z  in response to SystemAdmin
    Just loaded Webmin and looked at the networks side of things and have this.

    Name TYPE Address NETMASK STATUS
    eth0 Ethernet 192.168.3.243 255.255.255.0 Up
    Ethernet fe80::214:5eff:fe17:3970 64 Up

    eth1 Ethernet 192.168.3.140 255.255.255.0 Up
    Loopback ::1 128 Up
    lo Loopback 127.0.0.1 255.0.0.0 Up

    As you can see on eth1 looks different to eth0, there is no MAC address and also an added loopback.
    • ishields
      ishields
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      Re: IBM x3550 7978 Ubuntu NIC issues

      ‏2009-10-30T13:41:20Z  in response to SystemAdmin
      eth0 is up and has both ipv4 and ipv6 (fe80::214:5eff:fe17:3970) addresses.
      eth1 is up and has an assigned IPv4 address and a default IPV6 address (::1).
      lo is your local loopback address (127.0.0.1)
      There are no MAC addresses displayed.

      Looks like you have both interfaces up. What symptom makes one appear down?

      Ian Shields
      • SystemAdmin
        SystemAdmin
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        Re: IBM x3550 7978 Ubuntu NIC issues

        ‏2009-10-30T19:34:59Z  in response to ishields
        When I remove the cable from eth1 I can still ping its IP address, even though its shows its interface going down.

        At the minute the only cable that is plugged in is eth0 and I can ping both addresses.

        Cheers Ian