Thanks, I'll give it a try tomorrow. I do use static assignment for the primary ether and generic IPoIB interfaces, but this is a dedicated VLAN, passing through an IB to ethernet gateway, used to access specialized storage. The interface will be brought up only as needed, and taken down when the job is through. I'll probably make the lease fairly long. Will never try to boot over this interface, so PXE is not an issue.
> On Mar 16, 2021, at 8:46 PM, Jarrod Johnson <jjohns...@lenovo.com> wrote: > > It can handle them. > > If you want dynamic range only, shouldn't matter, just set it and go > > > If you want fixed address and you don't care about pxe, then I'd use the 8 > bye port guid rather than the 20 byte address. E.g. 00:11:75:01:01:0d:cd:c7 > (technically that's an omnipath > but it's the same as far as dhcp is concerned). > > > Pxe actually lies and converts to a 48 bit mac. If that matters I'll write > more info on that. > > > Of course, I would tend toward static addressing without dhcp even for the > primary nic nowadays. > From: David Johnson <david_john...@brown.edu> > Sent: Tuesday, March 16, 2021 7:24 PM > To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net> > Subject: [External] [xcat-user] Can xCAT DHCP server offer addresses on IPoIB? > > I've got an entry in my networks table for a special-use subnet > 192.168.180.0/22 on IPoIB. > > I'd like to give a dynamic range 192.168.180.100 to 192.168.183.199 on this > 22 bit supernet. > Most hosts on the network will not be active on this partition, as long as > each host that brings > up the interface gets a unique address at the time, I'd be happy. > > Can the stock DHCP server handle 20 byte mac addresses? > > Thanks, > -- ddj > Dave Johnson > > _______________________________________________ > xCAT-user mailing list > xCAT-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/xcat-user > <https://lists.sourceforge.net/lists/listinfo/xcat-user>
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