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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Important IPv6 Policy Issue -- Your Input Requested
On Thu, Nov 11, 2004 at 03:00:04AM +0000, Christopher L. Morrow wrote: > On Tue, 9 Nov 2004, Randy Bush wrote: > > > In today's networks, printers do NOT need global addresses. > > let me make sure i understand this. in order not to have to > > pay for the address space for a my enterprise's printers, > > they are supposed to make separate ether runs to them > > parallel to all the workgroup runs, so they can route them > > funny. then they are supposed to maintain all that routing > > cruft, port(s) on the routers, ... > > not that it's a great plan, and excepting the popular router vendor > 'features' with respect to multiple ip addresses per interface... you CAN > put more than on broadcast domain on a single ethernet LAN. As this is about IPv6: IPv6 devices MUST be able to handle multiple Addresses on one interface. As this is a requirement anyway it is reasonably safe to assume all devices on an IPv6 network are able to do that. As long as you do not assume Vendors will build non-standard. If you start thinking into that direction, anything is possible, so it would be unplannable anyway. > this does make for some 'fun' in configuration management and in > deconflicting address space usages across larger enterprises as well. In > general each ip device really ought to have a globally unique ip address, > even if you never plan on connecting a network (something that would live > more than a testing cycle) to the global internet. business plans change, > partners come and go and technology is always making it easier to do > things 'on the network' than off. With IPv6 and autoconfiguration, you will at least have a link local address. So even with your setup, you will have a link-local and a globally unique address on each network interface. Nils
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