DNS Extension for Autonomous Internet(AIP)
draft-diao-aip-dns-00
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| Authors | Yuping Diao, Diao Yongping , Ming Liao | ||
| Last updated | 2012-06-13 | ||
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draft-diao-aip-dns-00
Network Working Group Yuping Diao
Internet-Draft Guangdong Commercial College
Intended status: standard Yongping Diao
Expires: December 13, 2012 China Telecom
Ming Liao
China Mobile
June 13, 2012
DNS Extension for Autonomous Internet(AIP)
draft-diao-aip-dns-00.txt
Abstract
With the reality of Internet, Autonomous Internet technology
in this article constructs independent autonomous extensible domain
name architecture and domain name hierarchy through current domain
name architecture, provides independent root DNS server, inner/outer
DNS resolution mechanism for each autonomous internet network system,
and provides reformation and transition solution from current
Internet to realize autonomy even in unilateral action.
Status of this Memo
This Internet-Draft is submitted to IETF in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
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and may be updated, replaced, or obsoleted by other documents at any
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on December 13, 2012.
Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the
document authors. All rights reserved.
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This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
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the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Specification of Requirements . . . . . . . . . . . . . . . 4
2. Autonomous Internet DNS Design . . . . . . . . . . . . . . . . 4
2.1. AIP DNS Design Goal . . . . . . . . . . . . . . . . . . . . 4
2.2. AIP DNS Hierarchy . . . . . . . . . . . . . . . . . . . . . 5
2.3. AIP DNS Architecture and Transformation . . . . . . . . . . 6
3. AIP DNS Resolution Procedure. . . . . . . . . . . . . . . . . . 7
3.1. Domain Name Resolution within AIP Network . . . . . . . . . 7
3.2. Domain Name Resolution between AIP Networks . . . . . . . . 8
4. Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5. Security Considerations . . . . . . . . . . . . . . . . . . . 10
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 10
7. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 10
8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.1. Normative References . . . . . . . . . . . . . . . . . . . 10
8.2. Informative References . . . . . . . . . . . . . . . . . . 10
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 11
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1. Introduction
Internet Domain Name System (DNS) distributes domain name and IP
address for the host on the Internet. DNS automatically translates
the domain name into IP address when user accesses Internet using
domain name. In current Internet domain name hierarchy, the root
DNS server authorizes and distributes all sub-layer DNS servers.
And by default it is to request the root DNS server service when any
other DNS servers receive a non local domain name resolution request.
DNS supports the Internet running normally. But its central control
method is not suitable to autonomy and scalability and can't keep up
with the fast development of Internet. To national internet network,
owning its independent root DNS server and realize autonomy in
Internet is a problem not only for the cost but also for the
technical difficulty. It is almost impossible in current DNS
architecture.
1.1. Specification of Requirements
In this document, several words are used to signify the requirements
of the specification. These words are often capitalized. The key
words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD",
"SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document
are to be interpreted as described in [RFC2119].
2. Autonomous Internet DNS Design
2.1. AIP DNS Design Goal
Based on Internet practice, autonomous internet (AIP) techinology
should even unilaterally transform the Internet into Autonomous
Internet (AIP) without protocol change, using mode change, transition
period. In the same time, Autonomous Internet system architecture
designed should be safe and extensible; the reformation is the least
possibly and the transition is smooth and feasible.
To achieve the goal of Internet autonomy, AIP technology will
construct an independent autonomous extensible domain name system and
hierarchy based on current DNS, so that each AIP network has its own
independent domain name hierarchy and root DNS servers; It provides
the domain name resolution mechanism inner/outer AIP network system,
so that the internal domain name resolution is no longer via the DNS
outside this AIP network. Thus, the new generation Internet which
uses the AIP technology will become a multi-polar system and provide
full self-control ability to each AIP network.
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2.2. AIP DNS Hierarchy
The main rules of the Autonomous Internet DNS are defined as
following:
Rule 1: Each AIP network itself has a complete set of Domain Name
System, which support traditional domain name resolution within the
AIP.
Rule 2: Each AIP network has its own numbered name that is different
from the others. The numbered name is taken as the default domain
name suffix when the internal domain name of this AIP network is
cited by external AIP network. And any IP node's external domain
name is consist of its internal domain name and its AIP network
default domain name suffix.
Rule 3: When communicate between AIP networks, the access to IP node
of external AIP network must use the IP node's external domain name.
AIP Domain name system is autonomous, extensible.
+------------------------------+ +------------------------------+
|Root "" | | "" Root |
| _________|________ | | _________|________ |
| / / | \ \ | | / / | \ \ |
|Top edu com org gov ex(i)<+-+>ex(i) com cn Top|
| /\ /\ | | /\ |
| / \ / \ | | / \ |
|Second baidu yahoo com cn | | baidu yahoo Second|
| /\ | | /\ |
| / \ | | / \ |
|Host www mail | | www mail Host|
| AIP Network A | | AIP Network B |
+------------------------------+ +------------------------------+
Figure 1: Autonomous Internet domain name hierarchy
According to the goal and DNS rules of AIP, the AIP domain name
hierarchy of AIP can be designed as Fig. 1. In this figure, network
A, B and ... are AIP networks; Domain node "www.yahoo.com" in network
B is expressed as "www.yahoo.com.B" for its external domain name.
At the same time, each AIP network domain name hierarchy tree adds
the top-level domain name "ex(i)", so as to map the other external
AIP network domain name hierarchy trees accessible from this AIP
network. When ex(i)=B, it means the other AIP network B is accessible
from this AIP network.
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2.3. AIP DNS Architecture and Transformation
According to the AIP DNS, we can construct AIP DNS architecture show
as Fig. 2. Each AIP DNS has its root DNS servers, which are
responsible for all the DNS resolution in this AIP network. Other DNS
servers of this AIP point to these root DNS servers by default.
.
+-------------------------------.-------------------------------+
|+---------+ . |
||Root DNS <--------------------+ |
|| | .\ |
|+----^----+ . +-----------------------+ |
| | . | |
|+----v----+ . +----v----+|
|| DNS | . | DNS ||
|| (.us) | . | (.cn) ||
|+----^----+ . +----^----+|
| | . | |
|+----v----+ . +----v----+|
|| Host | . | Host ||
|| N1(G1) | . | N2(G2) ||
|+---------+ . +---------+|
| Internet |
+-------------------------------.-------------------------------+
\./
V
+------------------------------+ +------------------------------+
|+----------+ +----------+| |+----------+ +----------+|
|| Root DNS <------> AIP DNS <+-+> AIP DNS <------> Root DNS ||
|| (A) | | GW A || || GW B | | (B) ||
|+----^-----+ +----^-----+| |+----^-----+ +----^-----+|
| | | | | |
|+----v-----+ | | +----v-----+|
|| DNS | | | | DNS ||
||(.us/.com)| | | |(.cn/.com)||
|+----^-----+ | | +----^-----+|
| | | | | |
|+----v-----+ | | +----v-----+|
|| Host | | | | Host ||
|| Na1(Ga1) | | | | Nb2(Gb2) ||
|+----------+ | | +----------+|
| Internet/AIP network A | | AIP network B |
+------------------------------+ +------------------------------+
Figure 2: AIP DNS architecture and transformation
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Each AIP network is almost the same as the current Internet, and the
internal domain name resolution and IP node communication have not
any change. The only change is that the destination domain name need
add domain name suffix of the destination AIP network when IP nodes
communicate between different AIP networks. Therefore, each AIP
network will add a device called "AIP DNS gateway" (AIP DNS GW) to
support domain name resolution between AIP networks. On one hand, it
forwards its external DNS resolution request to the destination AIP
network, returns the DNS resolution result to internal requester;
On the other hand, it receives DNS resolution request from external
AIP networks, feedback the DNS resolution result to the external AIP
network requester, which at first it would get the internal DNS
resolution result according to the traditional way.
In order to realize the transition from Internet to Autonomous
Internet, each partition of current Internet should first realize
possible self-government and gradually reduce its dependence on the
foreign domain names, such as COM, NET et al.
Then to each AIP network, we can establish a new autonomous DNS, or
Upgrade one part of current Internet DNS (core part or non core part)
to a new autonomous DNS.
Unilateral action: It is not likely the whole Internet can be
transformed synchronally in one time. In order not to affect existing
domain name resolution before the Internet core part transforms into
an AIP network, any country can set up an AIP DNS independently and
connect to the Internet through the original link; or any two
countries in agreement can set up their AIP networks and connect to
each others. There is something different in the unilateral action.
On one hand, the upgrade work is including of new added local AIP
network root DNS server to construct an independent DNS, and an AIP
DNS GW deployment to support domain name resolution between AIP
networks. On the other hand, it is necessary to add a pre-transformed
AIP DNS GW in each AIP network connecting to the Internet (core part)
DNS instead of the original transformation requirement for Internet
core part. The pre-transformed AIP DNS GW would initiatively add the
domain name suffix to the domain name from the existing Internet
(core part), which is the only difference from normal AIP DNS GW.
3. AIP DNS Resolution Procedure
3.1. Domain Name Resolution within AIP Network
Within each AIP network, domain name resolution keeps traditional
method.
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3.2. Domain Name Resolution between AIP Networks
Between AIP networks, external domain name of destination IP node
should be provided for domain name resolution. Assume that a host in
AIP network A has domain name Na1 and global IP address Ga1. Another
host in AIP network B has domain name Nb2=www.yahoo.com, whose
external domain name is www.yahoo.com.B. Fig. 3 shows the DNS query
procedure between AIP network A and B when host Na1 request for the
domain name resolution of host Nb2. This domain name resolution
procedure between AIP networks is described as following:
Host DNS Root DNS AIP DNS :AIP DNS Root DNS DNS
Na1 (A) (A) GW A : GW B (B) (B)
| | | | : | | |
|-Nb2.B->| | | : | | |
| |-Nb2.B->| | : | | |
| |<.......| | : | | |
| | | | : | | |
| |------Nb2.B----->| : | | |
| | | |-Nb2.B->| | |
| | | | : |--Nb2-->| |
| | | | : |<.......| |
| | | | : | | |
| | | | : |-------Nb2------>|
| | | | : |<----------------|
| | | |<-------| | |
| |<----------------| : | | |
|<-------| | | : | | |
| | | | : | | |
Internet/AIP network A : AIP network B
Figure 3: DNS query procedure between AIP networks
Step 1: Source host Na1 request for the resolution of external
domain name "Nb2.B", and send the query to local DNS server through
host's resolver.
Step 2: When receive the query, Local DNS server inquire its cache
and return the result. But if there is no record for the query, local
DNS server would send query to root DNS server of local AIP network
A.
Step 3: Root DNS server of local AIP network A return a primary DNS
server IP address of queried domain (sub-domain of AIP network A's
root domain name, here is B, which mirrors external DNS hierarchy of
another AIP network B) to local DNS server, namely the IP address of
AIP DNS GW A in AIP network A.
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Step 4: Local DNS server send the query to the returned DNS server
(AIP DNS GW A) IP address again.
1) When receive the query, AIP DNS GW A inquire its cache and
return the result. But if there is no record for the query, AIP
DNS GW A would send query to AIP DNS GW B in AIP network B.
2) When receive the query, AIP DNS GW B inquire its cache and
return the result. But if there is no record for the query, AIP
DNS GW B would get rid of the local AIP network domain name suffix
".B" from external domain name "Nb2.B", then send query with th
internal domain name "Nb2" to root DNS server of local AIP network
B.
3) Root DNS server of local AIP network B return a primary DNS
server IP address of queried domain (sub-domain of root domain
name, such as COM) to AIP DNS GW B.
4) AIP DNS GW B sends the query to the last step 3) returned DNS
server IP address again. After receive the query, this DNS server
inquire (its cache) and return the corresponding record or the
corresponding lower-level DNS server IP address.
5) AIP DNS GW B repeats last step 4) until it finds the correct
record, namely the IP address Gb2 of the domain name Nb2.
6) AIP DNS GW B turns the internal domain name "Nb2" into externa
domain name "Nb2.B" in the returned result by adding local AIP
network domain name suffix "B", and then caches the result and
return the result to AIP DNS GW A.
Step 5: AIP DNS GW A caches the returned result and return the result
to local DNS server.
Step 6: Local DNS server caches the returned result and returns the
result to source host Na1.
Therefore, host Na1 (Ga1) now can communicate with host Nb2 (Gb2)
after it gets the IP address of the destination host Nb2.
4. Conclusion
Autonomous Internet DNS provides a technology to realize Internet
autonomy, which can own independent root DNS server even in
unilateral action. And it could be realized in high independence,
extensible usage, the least cost and non transition period. It is
hopeful to establish future autonomous extensible multi-polar
Internet and resolve the autonomous problem of Internet.
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5. Security Considerations
There is no additional security requirement than current domain name
system. Security issues are not discussed in this memo.
6. IANA Considerations
As described by AIP DNS rule 2 in Section 2.2, different AIP network
default domain name suffix needs to be assigned by IANA.
7. Acknowledgments
The authors would like to thank everybody for their valuable opinion
and evaluation to this document.
8. References
8.1. Normative References
[RFC 791] Postel, J., ed., "Internet Protocol - DARPA Internet
Program Protocol Specification", RFC 791, September 1981.
[RFC1034] Mockapetris, P., "Domain names - concepts and facilities",
STD 13, RFC 1034, November 1987.
[RFC1035] Mockapetris, P., "Domain names - Implementation and
Specification", STD 13, RFC 1035, November 1987.
[RFC2460] Deering, S. and R. Hinden, "Internet Protocol, Version 6
(IPv6) Specification", RFC 2460, December 1998.
8.2. Informative References
[RFC1706] B. Manning, and R. Colella, "DNS NSAP Resource Records",
RFC 1706, October 1994.
[RFC3596] S. Thomson, C. Huitema, V. Ksinant, and M. Souissi, "DNS
Extensions to Support IP Version 6", RFC 3596, October
2003.
[RFC2782] A. Gulbrandsen, P. Vixie, and L. Esibov, "A DNS RR for
specifying the location of services (DNS SRV)", RFC 2782,
February 2000.
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Authors' Addresses
Yuping Diao
Information Institute of Guangdong Commercial College,
21 Luntou Road, Haizhu District,
Guangzhou 510320, China.
Email: teacherdddd@yahoo.com.cn
Yongping Diao
China Telecom-Guangzhou Institute,
109 West Zhongshan Ave,
Guangzhou 510630, China.
Phone: +86 20 38639732
Email: diaoyp@yahoo.com
Ming Liao
China Mobile Group Guangdong Co., Ltd. Guangzhou Branch,
610 Tianhe North Road,
Guangzhou 510631, China.
Email: 644247110@qq.com
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