November 2006 IETF67 - ECRIT 1

A Dynamic Host Configuration Protocol (DHCP) based Location-to-Service

Translation Protocol (LoST) Discovery Procedure

draft-polk-ecrit-dhc-lost-discovery-01

Henning Schulzrinne

James Polk

Hannes Tschofenig

November 2006 IETF67 - ECRIT 2

Overview

• Contains single domain name– encoded as ROTFC 1035 label sequence

• [length] label [length] label [0]• after IDN translation

TBD len RFC 1035 label sequence

OPTION_LOST option-length

7 example 3 com 0

November 2006 IETF67 - ECRIT 3

Resolved: domain name representation

• Domain name representation– RFC 1035 (as in RFC 3264)

• IDN done by application

– LoST URL or IRI• Store UTF-8• IDN done by resolver library

– IDN itself

• Got DHC WG chair guidance (RFC 4702)

November 2006 IETF67 - ECRIT 4

Major change: server count

• Exactly one LoST server– can’t use multiple options (concatenated)

• Multiple servers can be encoded in NAPTR entry