The Autoconfiguration of Recursive DNS Server
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Jae-Hoon Jeong , Jung-Soo Park, Kyeong-Jin Lee, Hyoung-Jun Kim ETRI 18 th March 2003 PowerPoint PPT Presentation


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The Autoconfiguration of Recursive DNS Server and the Optimization of DNS Name Resolution in Hierarchical Mobile IPv6. draft-jeong-hmipv6-dns-optimization-00.txt. Jae-Hoon Jeong , Jung-Soo Park, Kyeong-Jin Lee, Hyoung-Jun Kim ETRI 18 th March 2003

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Jae-Hoon Jeong , Jung-Soo Park, Kyeong-Jin Lee, Hyoung-Jun Kim ETRI 18 th March 2003

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Jae hoon jeong jung soo park kyeong jin lee hyoung jun kim etri 18 th march 2003

The Autoconfiguration of Recursive DNS Server and the Optimization of DNS Name Resolution in Hierarchical Mobile IPv6

draft-jeong-hmipv6-dns-optimization-00.txt

Jae-Hoon Jeong, Jung-Soo Park, Kyeong-Jin Lee, Hyoung-Jun Kim

ETRI18th March 2003

56th IETF – San Francisco, California, [email protected]

IETF56 DNSOP WG


Motivation of the draft

Motivation of the draft

  • The current DNS name resolution depends on fixed recursive DNS server(s) preconfigured in the node if we don’t use DHCPv6.

    • But, this is not suitable in the mobile IPv6 environment.

      • In the respect of DNS name resolution time.

  • What solutions are there to save DNS name resolution time?

    • This draft suggests one of the possible solutions.

IETF56 DNSOP WG


Idea of the draft

Idea of the draft

  • Autoconfiguration of recursive DNS server (RDNSS)

    • Through RA-based DNS discovery, a mobile node can configure the address of recursive DNS server(s) placed in the visited network statelessly.

  • Optimization of DNS name resolution

    • It is possible by using the local recursive DNS server placed in the visited network instead of that placed in the home network.

  • The scope of this draft

    • Hierarchical Mobile IPv6 Network

      • But the idea of this draft can be applied to mobile IPv6 network or normal IPv6 network.

IETF56 DNSOP WG


Current dns service scenario 1 2

RDNSS1

Current DNS service scenario (1/2)

DNS Server

(DNSS)

Web Server(WS)

RDNSS : Recursive DNS Server

3

Internet

Home Agent(HA)

Mobility Anchor Point(MAP)

2

5

1

RDNSS2

4

MN

Home Network

Foreign Network

IETF56 DNSOP WG


Current dns service scenario 2 2 dog legged dns name resolution

RDNSS1

Current DNS service scenario (2/2): Dog-legged DNS name resolution

DNS Server

(DNSS)

Web Server(WS)

RDNSS : Recursive DNS Server

3

Internet

Home Agent(HA)

Mobility Anchor Point(MAP)

2

5

4

RDNSS2

1

MN

Home Network

Foreign Network

IETF56 DNSOP WG


Suggested dns service scenario optimization of dns name resolution

RDNSS1

Suggested DNS service scenario : Optimization of DNS name resolution

DNS Server

(DNSS)

Web Server(WS)

RDNSS : Recursive DNS Server

3

Internet

Home Agent(HA)

Mobility Anchor Point(MAP)

5

2

1

RDNSS2

4

MN

Home Network

Foreign Network

IETF56 DNSOP WG


Next steps

Next steps

  • The next step of the draft

    • Add solicited DNS discovery

      • Through RS message that solicits the address of recursive DNS server placed in the visited network.

    • Consideration of extension to mobile IPv6

  • Is this draft valuable to discuss as dnsop wg draft?

IETF56 DNSOP WG


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