> -----Original Message-----
> From: centos-bounces@xxxxxxxxxx
> [mailto:centos-bounces@xxxxxxxxxx] On Behalf Of Mário Gamito
> Sent: Saturday, March 03, 2007 5:33 PM
> To: CentOS mailing list
> Subject: The most weird thing i've ever seen (networking)
>
> Hi,
>
> I've installed a mail server using CentOS 4.4
>
> Now, if i reboot the server remotely by ssh, when it cames
> up, i have no
> network.
> The interface is up and everything looks pretty fine.
> But i can't even ping other machines in the same intranet.
>
> If i reboot it locally at the console, the network cames just fine.
>
> Never seen nothing like this.
>
> The mind boggles :(
>
> Any ideas ?
How do you attempt to ping the other machines after you reboot via ssh, at the console?
Is it possible that a piece of network equipment is proxying the arp when you reboot via the network and will not let go once the machine comes back up, but when you reboot locally there is no network connection that would need arp proxying so a proxy entry isn't created?
You would have had to turn on arp proxying somewhere for this to happen though it doesn't happen automatically.
Need to know your network topology a bit more to fully diagnose this.
-Ross
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