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Hello guys, i have to use a tool, which is dependent on RHEL3/4.So i thought that CENTOS 3 will suffice the requirement. I installed CentOS 3.9 yesterday on my machine ...
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  1. #1
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    Ethernet connection absent in CENTOS 3


    Hello guys,

    i have to use a tool, which is dependent on RHEL3/4.So i thought that CENTOS 3 will suffice the requirement. I installed CentOS 3.9 yesterday on my machine which is Compaq presario SG35701L.It has ethernet adapter of ReaLtek RTL8139/810 Fastspeed, which works properly on my windows OS.But when i boot system in CentOS 3, then it fails to start any networking protocol, be it ssh, http, etc.When i checked the Network settings, i didn't find any eth0 or eth1.In the list of ethernet controllers, i couldn't find RealTek8139.Earlier, i have tried with CENTOS 5 also but it didn't work too and was giving the same problem.
    Doesn't Centos distro come with inbuilt networking drivers??
    please let me the right solution.

    rgds,
    Ashwani

  2. #2
    Linux Guru coopstah13's Avatar
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    Open terminal and post these codes
    Code:
    lspci | grep -i ethernet
    lsmod | grep 8139
    This will tell us if the module is loaded. It should be in kernel since 2.4.3 from what I'm reading.

  3. #3
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    I tried your commands and got
    " Ethernet Controller RealTek Semiconductor Co. Ltd: "unknow device 8136( rev 01)

    and on lsmod |grep 8139, i got nothing.

    rgds,
    Ashwani

  4. #4
    Linux Guru coopstah13's Avatar
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    can you just post the whole output of
    Code:
    lsmod
    please put it inside code tags

  5. #5
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    Yes this is the o/p f lsmod:
    Code:
    >/sbin/lsmod
    Module                  Size  Used by    Not tainted
    audit                  89944   2 (autoclean)
    usbserial              23292   0 (autoclean) (unused)
    lp                      8964   0 (autoclean)
    parport                36832   0 (autoclean) [lp]
    autofs4                16248   0 (autoclean) (unused)
    ipt_REJECT              4600   1 (autoclean)
    ipt_state               1080   1 (autoclean)
    ip_conntrack           27208   1 (autoclean) [ipt_state]
    iptable_filter          2412   1 (autoclean)
    ip_tables              15904   3 [ipt_REJECT ipt_state iptable_filter]
    sr_mod                 17784   0 (autoclean)
    microcode               5688   0 (autoclean)
    ide-scsi               12336   0
    ide-cd                 33920   0
    cdrom                  32416   0 [sr_mod ide-cd]
    sg                     36140   0 (autoclean)
    sd_mod                 14096   0 (autoclean)
    usb-storage            74496   0
    scsi_mod              107308   1 [sr_mod ide-scsi sg sd_mod usb-storage]
    keybdev                 2944   0 (unused)
    mousedev                5524   1
    hid                    22244   0 (unused)
    input                   5888   0 [keybdev mousedev hid]
    ehci-hcd               20008   0 (unused)
    usb-uhci               25740   0 (unused)
    usbcore                77600   1 [usbserial usb-storage hid ehci-hcd usb-uhci]
    ext3                   85864   1
    jbd                    50956   1 [ext3]

  6. #6
    Linux Guru coopstah13's Avatar
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    try inserting the module manually, you have to be root to do this
    Code:
    modprobe 8139too

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