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IP Address Assignment Report Process (for User's Network)
Japan Network Information Center
Superceded on: 22 October 1999
Valid till : 31 December 2000
＊Outline of this document＊
This document is valid from 29 January 2000.
This document explains the procedure by which a member consigned to IP
address assignment work by JPNIC (hereinafter "JPNIC member") should
carry out actual IP address assignment work on the user's network.
Use the request form shown below for reporting assignments to JPNIC.
"IP Address Assignment Report Form (For User's Network)"
Refer to the following documents for the conditions of assignment
work:
"IP Address Allocation/Return Request Process (For JPNIC Members)"
Please note that the name of each item in a form is described in
Japanese and there is no request form in English.
＊Contents＊
1. Assignment guideline
2. IP address assignment criteria
2.1 Usage rate
2.2 Size of IP address assignment
2.3 Assignment in the past
2.4 Usage rate after assignment
2.5 When connection is lost
3. Fee
4. Flow of assignment work
4.1 Checking the assignment contents
4.2 IP address assignment work
4.3 Assignment reporting to JPNIC
4.4 Checking JPNIC database registration information
4.5 Payment of fee
5. Assignment of address space smaller than /24
5.1 Name server registration method
5.2 Registration method for network information
6. IP address return
7. IP address renumbering
8. Qualifications for making an IP address assignment report request
9. Inquiries
1. Guideline for assignment
This document is written based on JPNIC policy. Refer to the following
document for JPNIC policy:
"Policies for Address Space Management in JPNIC"
Address space assigned to members is used to perform address
assignment work delegated by JPNIC. Therefore, note the following
points:
・JPNIC members are not permitted to consign other persons to
assign addresses. A member who assigns addresses is responsible
for assignment of the whole delegated space.
・The JPNIC member must carry out assignment work based on the
address assignment rules set by JPNIC and make every effort to
use addresses efficiently and aggregate routing information.
・Registration in the JPNIC database is part of the address
assignment work.
・When assigning address space smaller than /24, it is necessary
to set/manage/use the name server for reverse lookup.
・The contents of IP address assignment work consigned by JPNIC
may be changed occasionally according to international
assignment criterion.
・Addresses shall be assigned only to networks that are connected
to the JPNIC member.
・When another JPNIC Member B comes between JPNIC Member A and the
party receiving the assignment, Member B shall carry out the
assignment work.
・Before carrying out assignment of addresses for a network that
has multiple outside connections, thorough discussion should be
held between the relevant network and possible JPNIC members,
taking into account the aggregation of routing information.
2. IP address assignment criteria
The JPNIC address assignment criteria is determined based on the
contents of RFC2050 and the assignment criteria currently used in
other registries including APNIC, which is the upper-level registry of
JPNIC.
The assignment criteria described here is regarded as appropriate by
the current Internet community, and so may change in the future with
trends or circumstances. Therefore, refer to the latest documentation
at all times when performing assignment.
"RFC2050 (INTERNET REGISTRY IP ALLOCATION GUIDELINES)"
"Policies for Address Space Management in the Asia-Pacific Region"
2.1 Usage rate
Usage rate is used as a criterion for IP address assignment. JPNIC
defines the usage rate as shown below.
Total number of addresses assigned to host, etc.
from assigned space
Usage rate = ------------------------------------------------- x 100
Size of assigned space - Number of subnets x 2
Example: Usage rate when /27 is assigned in the case that there are
Network A (2 hosts), Network B (6 hosts) and Network C (9 hosts)
(2 + 6 + 9)
------------ X 100 = Approx. 65%
32 - 3 * 2
2.2 Size of assigned IP address
In order to assign a suitable size of address space, the network
design plan of the JPNIC members themselves is referred to.
The network design plan indicates the number of hosts to be connected
just after assignment, 6 months after assignment, 1 year after
assignment, the growth ratio estimated during those periods, and
changes of network topology for possible improvement.
Based on this network design plan, addresses are assigned considering
the size of the address space so that the following condition on usage
rate is met:
Just after assignment Usage rate over 25%
And
Within a year after assignment Usage rate over 50%
JPNIC considers the period within 3 months after assignment as "just
after assignment."
If there are too few hosts and the conditions are not met, assign
addresses smaller than /24. In this case, measures for registering the
name server or network information are required. Refer to
"5. Assignment of address space smaller than /24" for details.
It is not necessary for addresses to be assigned
continuously. However, aggregation of routing information for the
Internet as a whole must be considered. For example, it is possible to
assign /23 and /30, and in this case the total number of addresses
becomes 516 (512 + 4).
Note that the usage rate should be calculated based on the total
number of addresses in the assigned space.
However, if an unnatural address usage state is found including cases
where there is a subnet with an extremely low usage rate, or in the
case of re-assignment to users within an extremely short period
(assignment should be based on the forecast of 1 year), JPNIC may
request further explanation in some cases.
2.3 Assignment in the past
When you make a new assignment, do so based on the usage rate that
includes all addresses already assigned.
If you already receive provider-independent assignment by the registry
(e.g. JPNIC, APNIC), it should be returned whenever possible and the
JPNIC member must make a new assignment. The size of addresses
assigned in this case shall comply with the criteria given in "2.2
Size of IP address assignment".
However, if the JPNIC member does not announce routing information for
an address already assigned to outside, the host that uses the address
can be excluded from the number of hosts when calculating the usage
rate.
2.4 Usage rate after assignment
If it is found after assignment that the usage rate does not comply
with the criteria, return it and try a new assignment.
2.5 When connection is lost
Addresses assigned by JPNIC members to their own network must be
returned to the JPNIC members themselves when connection to the
Internet is lost. Please return the address within 3 months after
connection is lost, in principle.
The JPNIC member may use the returned address for new assignment.
3. Fee
JPNIC collects a fee for an assignment that enlarges the address
space, in principle.
Refer to the following document for assignment targets and fee amounts:
"IP Address Request Fee"
4. Flow of assignment work
The flow of work carried out by the JPNIC member after being consigned
to assignment work is shown below.
1) Checking the contents of assignment
・Inspect the contents of assignment.
・Estimate the actual IP address (space) based on "2.1 Usage
rate" and "2.2 Size of IP address assignment" given above.
・Check for the presence of an application for IP address
assignment evaluation.
2) IP address assignment work
・Carry out assignment after re-evaluating whether the
estimated IP address (space) is adequate.
3) Assignment report to JPNIC
・Report the assignment to JPNIC; JPNIC will register the
contents of the request in the database.
4) Checking JPNIC database registration information
5) Payment of fee
Individual work is explained in detail in the following sections.
4.1 Checking the assignment contents
1) Inspection of assignment contents
Inspect the request sent by the applicant for omissions or incorrect
descriptions. It is difficult to assess whether any statements are
false, but this should be considered where possible.
2) Estimation of IP address (space)
The actual IP address (space) is estimated based on the request
according to "2.1 Usage rate" and "2.2 Size of IP address assignment"
given above.
3) Checking presence of IP address assignment evaluation request
Verify that the size of the IP address (space) estimated based on the
requested contents is suitable for evaluating IP addressassignment. If
the size of the IP address space requested exceeds the assignment
window size, IP address assignment must be evaluated byJPNIC.
However, in the case of assignment to JPNIC members themselves, even
if the size exceeds the assignment window size, an IP address
assignment evaluation request is notnecessary, so carry out the
assignment according to "4.2 IP address assignment work".
Refer to the following document for details of the assignment window
and JPNIC evaluation request:
"JPNIC Evaluation Procedure for IP Address Assignment"
4.2 IP address assignment work
Evaluate whether the estimated IP address (space) is appropriate again
according to the standard of "2.1 Usage rate" and "2.2 Size of IP
address assignment", and determine the size of IP address (space) to
be assigned.
Then, carry out assignment from the space consigned.
4.3 Assignment reporting to JPNIC
When the JPNIC member issues a notification of addresses assigned to
the network of the applicant, the assignment should be reported to
JPNIC. For addresses that are assigned to the network of JPNIC members
themselves, an assignment report (for JPNIC members) should also be
made to JPNIC.
Once the assignment of addresses has been reflected in the JPNIC
database, the assignment work is considered as "completed".
However, if the assignment of IP addresses is considered inappropriate
upon receipt of the assignment report, JPNIC may prohibit assignment
of the addresses.
Note that if you make a request exceeding the assignment window, it
will not be registered.
Note that information on assignments reported to JPNIC must be
disclosed.
Use the request form shown below for reporting assignments to JPNIC.
"IP Address Assignment Report Form (For User's Network)"
Submit requests to JPNIC to the address shown below. Information is
registered in the JPNIC database at the same time. Please describe the
details in the IP Address Assignment Report Form and send it by
E-mail.
apply@ip.nic.ad.jp
When you register based on the result of evaluation, be sure to fill
in the evaluation No. of the registration form.
Once a notice is received from apply@ip.nic.ad.jp stating that the
form has been accepted and registration in the database completed, the
work of the JPNIC member is complete.
If the content of the form is deficient in some way, notification will
be received from apply@ip.nic.ad.jp; make corrections till the form is
accepted.
4.4 Checking JPNIC database registration information
JPNIC database registration information can be checked as follows:
Checking using whois:
whois -h whois.nic.ad.jp XXX.XXX.XXX.XXX
(IP Network Address)
Searching using JPNIC's website at:
http://www.nic.ad.jp/jp/db/index.html
4.5 Payment of fee
JPNIC sends invoices for fees to the accountant registered in the
membership information once every 2 months. The invoice is for the
assignment described in "3. Fee".
Refer to the following document for details of assignment targets and
fee amounts:
"IP Address Request Fee"
5. Assignment of address space smaller than /24
Notes regarding the assignment of address space smaller than /24 are
given below.
In the case of assignment of address space smaller than /24, be sure
to register the network information after registration of the name
server as shown below.
5.1 name server registration method
JPNIC does not register name servers for address spaces smaller than
/24.
When an address space smaller than /24 is assigned, the JPNIC member
must start a name server related to the address of /24 and register
network information.
The network name must be described as shown below in order to make it
distinguishable from addresses assigned to JPNIC members themselves.
------------------------------------------------------------------------
b. [ネットワーク名] SUBA-NNN-MMM
------------------------------------------------------------------------
Here, NNN represents the JPNIC membership No. and MMM is an optional
3-digit character string determined among the members.
5.2 Network information registration method
When you assign an address space smaller than /24, you need to
register the network information for the assigned part in the JPNIC
database.
Register the IP network address in the registration form for normal
network information in address prefix form as shown below.
------------------------------------------------------------------------
a. [IP ネットワークアドレス] 192.0.2.64/26
------------------------------------------------------------------------
JPNIC does not register reverse look up servers of DNS for address
spaces smaller than /24. Therefore, information regarding the name
server can not be registered with network information for an address
space smaller than this /24.
6. IP address return
The JPNIC member must return IP addresses included in address space
consigned according to the following document:
"IP Address Return Application Process"
7. IP address renumbering
When you wish to carry out returning and assignment at the same time
due to a change of connection, etc., refer to the following documents
and carry out the renumbering process:
"IP Address Renumbering Application (For User's Network)"
8. Qualifications for making an IP address assignment report request
Regarding the address assignment report, JPNIC will only accept
assignment requests sent from the E-mail address registered in [DB
registration] of the JPNIC member information, to which the address
block is allocated.
9. Inquiries
If an incorrect IP address is registered in the assignment report,
report it to the contact shown below within 5 business days from the
day on which the assignment report was completed. This will then be
processed as an invalid report even after it has been registered in
the database.
Cancellation of a report after 5 business days from registration in
the database will be charged.
If there are any unclear points regarding the procedure, send mail to
the following address.
query@ip.nic.ad.jp
End of document
＊Related documents＊
"IP Address Assignment Report Form (For User's Network)"
(http://www.nic.ad.jp/en/regist/ip/translation/e-ip-addr-assign-user-form.html)
"IP Address Allocation/Return Request Process (For JPNIC Members)"
(http://www.nic.ad.jp/en/regist/ip/translation/e-ip-addr-alloc-process.html)
"Policies for Address Space Management in JPNIC"
(http://www.nic.ad.jp/en/regist/ip/translation/e-ip-addr-ipv4policy.html)
"Policies for Address Space Management in the Asia-Pacific Region"
(http://www.apnic.net/drafts/ipv4policy-draftfinal.html)
"IP Address Request Fee"
(http://www.nic.ad.jp/en/regist/ip/translation/e-ip-addr-fee.html)
"JPNIC Evaluation Information for IP Address Assignment"
(http://www.nic.ad.jp/en/regist/ip/translation/e-ip-addr-evaluation-process.html)
"IP Address Assignment Report Form (For User's Network)"
(http://www.nic.ad.jp/en/regist/ip/translation/e-ip-addr-assign-user-form.html)
"IP Address Return Application Process"
(http://www.nic.ad.jp/en/regist/ip/translation/e-ip-addr-return-process.html)
"IP Address Renumbering Application (For User's Network)"
(http://www.nic.ad.jp/en/regist/ip/translation/e-ip-addr-renumber-user-process.html)
