Change of network adapters in radius server

Roland Pinches rolypoly at
Fri Dec 2 00:40:17 CET 2011

On 12/02/2011 12:21 PM, Sven Hartge wrote:
> Roland Pinches <rolypoly at> wrote:
>> We've run into a problem with our freeradius server virtual machine.
>> It's a RHEL5.5 VM running on ESXi 4.1 and it talks to a cisco NAS. It
>> currently works but we have performance issues, which I have partly
>> tracked down to a very specific VMware issue - if running linux with
>> more than 1 vCPU, vmxnet3 NIC connected to a distributed vSwitch. The
>> work around is to change the network adapters to something other than
>> a vmxnet3 adapter.
>> However, this is where my radius problem comes in. When I change the
>> NICs, the MAC address changes, which means I need to setup the static
>> IP addresses again. Not a problem and I can then ping the cisco device
>> and the cisco device can ping the radius server. The problem is, no
>> radius traffic flows between them.
> You can override the generated MAC. Try putting in the one fromt the
> vmxnet3 NIC and see what happens.
> Grüße,
> Sven.
I tried that, but it won't let me take the previous mac address since
it's outside the range VMware allows you to allocate (it comes up with a
message saying it outside the range allowed).


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