Linux on 390 Port <LINUX-390@VM.MARIST.EDU> wrote on 07.12.2006 06:25:33:
> On Wednesday, 12/06/2006 at 07:26 MST, Lee Stewart > <[EMAIL PROTECTED]> wrote: > > Getting close to trying this, but... > > > > For Linux to use it, I have to give a MAC address to Linux, right? (In > > Yast/Network Devices/Network Card/Advanced Options.) > > I don't know how to set the MAC manually on Linux. Please check your Linux on System z Device Drivers, Features, and Commands manual. > > > What do I use for a MAC address? And if I just pick one, how do I know > > it's valid and not a dup on the net? > > This is the beauty of a layer 2 (TYPE ETHERNET) VSWITCH. You can pick the > NIC MAC in the directory (NICDEF) and not worry about Linux. Locally > Assigned Addresses (LAAs) have to be unique only within their local LAN > segments; MACs do not travel through the entire network. > Well, whether you define the locally assisgned MAC in Linux or whether you choose to do so in the guest directory (and have Linux observe it as a pseudo burn-in (universal) address) doesn't solve the problem of MAC uniqueness in your network segment. Whether you choose the one or other way is a matter of administration policies - and in case of using the OSA layer-2 feature in an LPAR setup you don't have a choice in the first place ... http://standards.ieee.org/regauth/groupmac/tutorial.html provides a little MAC address tutorial that gives you some context > But the bottom line of LAAs is that if they are to be used, then they must > be managed. That means there has to be a process in your networking group > who assigns them. > > Alan Altmark > z/VM Development > IBM Endicott > Best regards, Ingo -- Ingo Adlung, STSM, System z Linux and Virtualization Architecture mail: [EMAIL PROTECTED] - phone: +49-7031-16-4263 ---------------------------------------------------------------------- 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
