[CentOS] Not firewall, but what?

On 05/08/2010 12:26 AM, Jussi Hirvi wrote:
> On 7.5.2010 16.40, Benjamin Franz wrote:
>> Post the results for 'route -n', 'ifconfig', and
>> 'arping -D 62.236.221.71' on the machine.
>>
> 
> The values in the previous message and below are from the xen host 
> (62.236.221.67/62.220.237.104), which displays just the same errors as 
> the xen guest (62.236.221.71).

Hmmm have you got more than one bridge on your network?  If so you need
to make sure you have STP turned ON on all your bridges.
If you have any services that require network at start up (nfs), you'll
need set you network start up delay to more than 10 seconds
as well, so STP has some time to settle.

I encountered similar problems when I plugged a _second_ virtualisation
host into my network.

Kal