Am Dienstag, den 04.08.2009, 14:43 +0200 schrieb Brett Serkez:> Ran into a strange issue with XEN on CentOS that I think is specific> to CentOS, which is why I'm starting by posting to this list first,> I'll post on the XEN list depending on responses. My sense is this> issue has something to do with how CentOS handles network setup on> first boot of the XEN kernel.>> - Installed a brand new CentOS 5.3 server with minimal packages.>> - Installed XEN, modified grub.conf to boot off of the XEN kernel and rebooted.>> - After reboot, network connectivity was lost.>> - Investigation concluded the issue was that the HWaddr address of the> physical NIC matched the fabricated HWaddr that XEN uses for most of> its adapters: FE:FF:FF:FF:FF:FF.
When Xen starts does some trickery with your interfaces. You should seeFE:FF:FF:FF:FF:FF on device peth0 and the real MAC-address on deviceeth0.All Xen vif devices will show also MAC FE:FF:FF:FF:FF:FF. That istotally normal.
Chris
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