Date: Thu, 25 Jul 2013 13:54:52 +0700 From: Olivier Nicole <olivier.nicole@cs.ait.ac.th> To: krad <kraduk@gmail.com> Cc: Olivier Nicole <on@cs.ait.ac.th>, freebsd-net@freebsd.org, "freebsd-questions@freebsd.org" <questions@freebsd.org> Subject: Re: Same MAC address in 2 different VLANs Message-ID: <CA%2Bg%2BBvgg0x7eTpGJba2E-Mt_-cXiv0FhepkOj%2BXmhk-5MGnUtA@mail.gmail.com> In-Reply-To: <CALfReyfLNbPtdhVE0gGVyhM0sdJX_EGzfEYHPi3TYfF8FLc9iw@mail.gmail.com> References: <u9txjqdhix.fsf@banyan.cs.ait.ac.th> <CALfReyfLNbPtdhVE0gGVyhM0sdJX_EGzfEYHPi3TYfF8FLc9iw@mail.gmail.com>
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> I think you maybe ok. Ive just looked at my esx config and the esx > management interfaces use their own generated macs, not the physical > interfaces ones. All the vms obviously use generated macs as well. > > However I only looked over it at a superficial level. > > Have you considered using a tap or spare phyical interface on your flex box > and not linking it to the network? Thank you, that was a brilliant idea: Flex only needs that one interface, with the specific MAC, exists on the host, it does not specifically try to use that interface for managing licenses, so a tap hanging to nowhere is the solution. Best regards, Olivier > > > On 19 July 2013 10:29, Olivier Nicole <Olivier.Nicole@cs.ait.ac.th> wrote: > >> Hello, >> >> Could any one comment about the use of the same MAC address in 2 >> separate VLANs? >> >> All my machines are connected to 2 VLANs (one public and one private) >> with no routing in between the VLANs. >> >> I used to run a FLEX license manager to a physical machine. When I >> virtualized that service, I had to use the MAC address of that physical >> machine for the virtual machine (FLEX is linked to the MAc address and I >> coul dnot issue new license as licensed the pproduct is not supported >> anymore). The virtual NIC that has the old MAC address is connected to >> the public VLAN. >> >> Now I want to reuse the physical machine as a VMware server. Dell nor >> VMware offer a solution to change the MAC address (like >> ifconfig em0 link xx:xx:xx:xx:xx:xx would do). So I plan to connect the >> NIC with the incriminated MAC to the private VLAN. >> >> Most (if not all) my servers are FreeBSD. Most will access the virtual >> machine running FLEX and may access the VMware server also. The servers >> are not VLAN aware. >> >> Will this be an issue? >> >> Best regars, >> >> Olivier >> >> -- >> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to " >> freebsd-questions-unsubscribe@freebsd.org" >> > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
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