On Wednesday, 02/02/2011 at 11:42 EST, Mark Post <mp...@novell.com> wrote: > >>> On 2/2/2011 at 04:51 AM, Ursula Braun <ubr...@linux.vnet.ibm.com> wrote: > > 1. Overwrite the z/VM-assigned MAC-address with a user-defined > > MAC-address using an LLADDR-definition line > > in /etc/sysconfig/network/ifcfg-eth<x>. Thus the MAC-address does not > > change after LOGOUT. > > I would strongly recommend _not_ doing this on a z/VM guest.
I was probably remiss in not pointing out that z/VM 6.1 now has the ability to "lock down" the MAC address assigned to a guest. VMLAN MACPROTECT ON and CP SET NIC <USER *|userid> vdev MACPROTECT ON When you engage it, the guest can set only the assigned MAC address in the virtual adapter, whether it is set dynamically by CP or statically via the MACID option on the virtual device. That makes overwriting the MAC impossible. For completeness, a new VMLAN USERPREFIX option has been introduced so that you can use different MAC prefixes for static MACIDs. Alan Altmark z/VM and Linux on System z Consultant IBM System Lab Services and Training ibm.com/systems/services/labservices office: 607.429.3323 alan_altm...@us.ibm.com IBM Endicott ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
