nanog mailing list archives
Re: Draft internic ip allocation doc
From: Vadim Antonov <avg () sprint net>
Date: Tue, 16 May 1995 19:17:51 -0400
There is an easy solution -- do not allocate less than /16s. This would relieve InterNIC from caring about IN-ADDRs (and will do good things for routing, too). --vadim All ISPs receiving /16 prefix blocks from the InterNIC will be responsible for maintaining all IN-ADDR.ARPA domain records for their respective customers. The InterNIC Registry will only be responsible for the maintenance of IN-ADDR.ARPA domain records for those CIDR blocks with prefixes longer than /16 issued directly from the InterNIC. I think you mean shorter, as in: The InterNIC Registry will only be responsible for the maintenance of IN-ADDR.ARPA domain records for those CIDR blocks with prefixes SHORTER than /16 issued directly from the InterNIC. No, I think he means longer. IN-ADDR.ARPA can only be delegated on octet boundaries, so IN-ADDR for /16 and shorter prefixes will be delegated in /16 chunks. IN-ADDR for prefixes longer than /16 must still be maintained by the root, since they cannot be delegated. For example, assume an ISP has been allocated the prefix 204.160/14. Along with this, the InterNIC will delegate the corresponding IN-ADDR domains: 160.204.IN-ADDR.ARPA 161.204.IN-ADDR.ARPA 162.204.IN-ADDR.ARPA 163.204.IN-ADDR.ARPA If the ISP were instead only assigned 204.160.0/17, the associated IN-ADDR range would be: 0.160.204.IN-ADDR.ARPA ... 127.160.204.IN-ADDR.ARPA which is not octet-aligned and therefore cannot be delegated. --Vince
Current thread:
- Re: Draft internic ip allocation doc Vince Fuller (May 16)
- Re: Draft internic ip allocation doc Mark Kosters (May 16)
- <Possible follow-ups>
- Draft internic ip allocation doc Mark Kosters (May 16)
- Re: Draft internic ip allocation doc bmanning (May 16)
- Message not available
- Re: Draft internic ip allocation doc Randy Bush (May 17)
- Re: Draft internic ip allocation doc Paul Holbrook (May 17)
- Re: Draft internic ip allocation doc Vince Fuller (May 16)
- Re: Draft internic ip allocation doc bmanning (May 16)
- Re: Draft internic ip allocation doc Louis A. Mamakos (May 16)
- Re: Draft internic ip allocation doc Vadim Antonov (May 16)
- Re: Draft internic ip allocation doc bmanning (May 17)
- Re: Draft internic ip allocation doc David R Conrad (May 18)
- Re: Draft internic ip allocation doc Mark Kosters (May 17)
- Re: Draft internic ip allocation doc bmanning (May 17)
- Re: Draft internic ip allocation doc Juha Heinanen (May 18)
- Re: Draft internic ip allocation doc Louis A. Mamakos (May 17)
- Re: Draft internic ip allocation doc Louis A. Mamakos (May 17)
- Re: Draft internic ip allocation doc bmanning (May 17)