Thank's Alan, we just realized that since we are using layer 3. So we have to take a discussion with the network/firewall people here.
Have a nice weekend :) 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/
