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RIPE 45
DNS Working Group Agenda
The DNS Working Group session will be held on Thursday 15 May, 09.00 - 12.30.
Draft Agenda v 1:
A. Administrivia:
- Minutes of Last Meeting
- Matters arising
B. IETF Report & News
Lars-Johan Liman, Autonomica
C. BIND News
Joao Damas, ISC
D. Invited talk: Mitigating Junk DNS Traffic, How the AS112 Project Can Help
John Brown, Chagres Technologies
As more users connect to the global internet via NAT type devices DNS servers are seeing an increase in traffic related to RFC-1918 IP addresses. This traffic is either PTR requests or Dynamic DNS updates. Several years ago this traffic was moved off the "Root DNS System" and placed on dedicated servers, blackhole-1 and blackhole-2.iana.org. These servers where operated by ICANN/IANA which saw large volumes of "attack traffic".
As a way to distribute this traffic, the AS 112 system was created by various Root Operators. This system is based on "Anycasting" a single prefix into the routing system.
The presenter created one such site and advertised its prefix towards Sprint (AS 1239) beginning in Feb 2003. Immediately he began seeing traffic rates of 3 to 5 Mb/sec 7x24. Upon closer analysis of this traffic it was determined that up to 80 percent had origin IP addrs located within the RIPE community. The presentation will review this data with the community, provide a simple "kit" on how to create a AS 112 system for "your" network, talk about the benefits of the system and review some of the potential pitfalls of the system.
E. Invited Talk: ccTLD Name Server Measurements
Nevil Brownlee, CAIDA
Since mid-2000 CAIDA been observing DNS request/response data, using NeTraMet meters, initially at UC San Diego and later at Auckland and Boulder. Last year we began observing ccTLD servers. There are many more ccTLDs than roots and gTLDs, and their servers are located throughout the world. We believe that passive measurements of their performance might provide a useful tool for wide-area Internet monitoring.
This presentation will describe the way ccTLD servers are located, compare obervations of ccTLD usage as observed from three sites, and comment on their performance (which is qualitatively different from root and gTLD servers).
COFFEE BREAK
F. Delegation and Lame Server Checking
ZoneCheck: DNS zone checking tool
Stephane D'Alu, AFNICZoneCheck is a tool which aim is to perform DNS zone checking with respect to DNS standards. It has been designed to be easily extended and customized, and already provide different interfaces (web, cli, gui). It fully supports IPv6 and is open to support new technologies such as DNSsec and IDN.
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Fixing Lameness - A Registry Perspective
Ed Lewis, ARINARIN has begun a project to stamp out lame delegations. Besides defining lameness and designing testing approaches, institutional issues have appeared. Over time, the data under test changes, including changes prompted by interim notifications to registrants. This observation has led to two questions. How are delegations retested for compliance (without confusing registrants)? What is the most effective and efficient form of notification?
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New Tools for Lameness and Delegation Checking
Patrik Faltstrom, Cisco Systems
Panel Session on Delegation and Lame Server Checking
Stephane D'Alu, Ed Lewis & Patrik Faltstrom
G. AOB
For current issues, please turn to the DNS Working Group mailing list archives at:
More information about this working group is located at:
