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Re: DHCP will not grab ip.



2008/10/9 Michael Magua <mmglug gmail com>:
> On Thu, Oct 9, 2008 at 12:15 AM, Dave Feustel <dfeustel mindspring com>
> wrote:
>>
>> On Wed, Oct 08, 2008 at 10:20:17PM +0100, Laura Speck wrote:
>> > Hey all,
>> >
>> > I am having a problem with a brand new install of Fedora 9. This
>> > machine has two nic's, eth0 and eth1. They are both . We currently
>> > have eth0 plugged into a router, had eth1 plugged in earlier to try it
>> > as well but we have this problem on both nics.
>> >
>> > Basically, on install we specified that both nics were to be dhcp, and
>> > to come up on boot. But neither of them get an ip on boot. I know that
>> > it's not a problem with the cable, as we plugged it into a different
>> > machine and it works fine. I don't think it's a problem with the nics
>> > as I can't see both of them being toast on a new machine.
>> >
>> > ifconfig eth0 up does nothing. I've gotten someone local to the server
>> > to try dhclient eth0 and then tail /var/log/messages. We see
>> > DHCPREQUEST, a bunch of DHCPDISCOVER lines and then end with a "No
>> > DHCPOFFERS received" message. ifconfig never shows either interface as
>> > having an "inet ..." line, but they get an "inet6 ..." line. I know
>> > it's not a problem with the dhcp server because it's our isp's, and
>> > our other machines can grab an ip fine.
>> >
>> > I've shut off Networkmanager (service NetworkManager stop) and started
>> > the network (service network start).
>> >
>> > service network start outputs:
>> > Bringing up loopback interface [OK]
>> > Bringing up interface eth0:
>> > Determining IP information for eth0... failed. [FAILED]
>> > Bringing up interface eth0:
>> > Determining IP information for eth1... failed. No link available.
>> > Check cable. [FAILED]
>> >
>> > Our /etc/sysconfig/network-scripts/ifcfg-eth0 looks like...
>> >
>> > DEVICE=eth0
>> > BOOTPROTO=dhcp
>> > ONBOOT=yes
>> >
>> > Any tips would be greatly appreciated. Thanks in advance!
>> >
>> > Laura
>>
>> I have F9 running on a computer with just one nic. Everything worked
>> until about a week ago, when the nic suddenly no longer automatically
>> got a dhcp address. My work around is to run dhclient etho &. DHCP
>> connects then. I still haven't figured out why this happened or what
>> the correct fix is.
>
>
>  You're missing the HWADDR= stanzas in your configs. This tells the kernel
> which NIC is actually eth0 and eth1 by identifying the MAC address.

Thanks, but nothing seems to change when I add the HWADDR to both
eth's configs, so the problem is still existing.

--
Laura


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