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 11-nov-04, at 16:36, Adi Linden wrote: What are my options today to obtain ip address space? My requirements are This is not unlike the situation in IPv6 where you will get a /48. :-) About half of the devices within my on private network are statically Use unique site locals for them in IPv6. You were talking about devices that need no connection to the rest of the world. So how does NAT enter the picture?NAT is my technology of choice to connect to the global internet, but other solutions are possible. For anything that needs to connect to the internet at large, yes. For stuff that only needs to be reachable from within your sites and people you work close together with, ULAs fit the bill.If I understand correctly, ipv6 will force me into using provider dependent globally unique address space. Unless my provider of the day isThink of it this way: provider A is called IANA. They seem to offer a great deal: you get to keep your address space forever, and it costs (next to) nothing. However, your connectivity sucks: there is none. We'll all have to learn some new tricks with IPv6. A model that appeals to me is to give all hosts within a site a unique site local address, and everything that needs external connectivity an address from the ISP of the week. Then, treat all the ULAs as "internal" and all the ISP derived addresses as "external". This means there is no need to have extensive access lists that contain ISP derived addresses, as all access to internal resources must be done using the ULAs, which don't change. (When properly implemented, default address selection will make sure the appropriate source/destination addresses are used for different types of connections.)
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