Hi again. I'm in contact with a network person here and is trying to explain what's it all about. He is somewaht confused and he says the problem is in VIO.
Is there anybody else having had this problem and succeeded in explain what to do ? We have a SLES10 maxhine with three network adapters and that works fine, but that is not in the same zone. The firewall hardwre and software is the same but obviously something differ here. Can I add the MACID statement for the NICDEFs and try that ? Do I need to fix that VMLAN MACPREFIX, or make sure it is set? Hmm, I have to dig into some manuals here it seams.... Cordialement / Vriendelijke Groeten / Best Regards / Med Vänliga Hälsningar Tore Agblad Volvo Information Technology Infrastructure Mainframe Design & Development SE-405 08, Gothenburg Sweden E-mail: [email protected] http://www.volvo.com/volvoit/global/en-gb/ ________________________________________ From: Linux on 390 Port [[email protected]] On Behalf Of Alan Altmark [[email protected]] Sent: Friday, July 09, 2010 15:09 To: [email protected] Subject: Re: Strange problems adding network adapter no 2 (eth1) in SLES11 SP1 On Friday, 07/09/2010 at 07:29 EDT, Agblad Tore <[email protected]> wrote: > It seams that from outside this server the two nicdef 700 and 710 have the same > MAC address > However from inside when issuing IFCONFIG to display, the MACs are different > and not any of these > MAC addresses seen from inside the server is even near the MAC address as seen > from outside. That is how a layer 3 (IP) VSWITCH works; the virtual MAC is not known by the real network. If you have network filters/firewalls that don't like different hosts using the same MAC, then you need to change the VSWITCH to be layer 2 (ETHERNET) and make any needed Linux config changes. With a layer 2 VSWITCH you will be responsible for MAC address assignments and so you will need to set up and manage the VMLAN MACPREFIX in SYSTEM CONFIG. Alan Altmark z/VM Development IBM Endicott ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] 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/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] 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/
