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An Experiment in DNS Based IP Routing (RFC1383)

IP.com Disclosure Number: IPCOM000002207D
Original Publication Date: 1992-Dec-01
Included in the Prior Art Database: 2000-Sep-12
Document File: 12 page(s) / 31K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

C. Huitema: AUTHOR

Abstract

Status of this Memo

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 9% of the total text.

Network Working Group C. Huitema

Request for Comments: 1383 INRIA

December 1992

An Experiment in DNS Based IP Routing

Status of this Memo

This memo defines an Experimental Protocol for the Internet

community. Discussion and suggestions for improvement are requested.

Please refer to the current edition of the "IAB Official Protocol

Standards" for the standardization state and status of this protocol.

Distribution of this memo is unlimited.

Table of Contents

1. Routing, scaling and hierarchies ...................... 1

2. Routing based on MX records ........................... 2

3. Evaluation of DNS routing ............................. 3

3.1 Loops and relays ..................................... 4

3.2 Performances and scaling ............................. 5

3.3 Tunneling or source routing .......................... 6

3.4 Choosing a gateway ................................... 6

3.5 Routing dynamics ..................................... 6

3.6 DNS connectivity ..................................... 7

3.7 On the way back ...................................... 8

3.8 Flirting with policy routing ......................... 8

4. Rationales for deployment ............................. 9

4.1 The good citizens .................................... 10

4.2 The commercial approach .............................. 10

5. The experimental development .......................... 11

5.1 DNS record ........................................... 11

5.2 Interface with the standard IP router ................ 12

5.3 The DNS query manager ................................ 12

5.4 The real time forwarder .............................. 12

5.5 Interaction with routing protocols ................... 13

6. Acknowledgments ....................................... 13

7. Conclusion ............................................ 13

8. References ............................................ 14

9. Security Considerations ............................... 14

10. Author's Address ..................................... 14

1. Routing, scaling and hierarchies

Several recent studies have outlined the risk of "routing explosion"

in the current Internet: there are already more than 5000 networks

announced in the NSFNET routing tables, more than 7000 in the EBONE

routing tables. As these numbers are growing, several problems

occur:

* The size of the routing tables grows linearly with the

...