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P2P:NAT

R&D

1. NAT

1. 2. 3. 1. 2. 3. NAT NAT IP STUN STUN STUN STUN

2. STUN

2008/6/27

SIProp

1

1. NAT

NAT NAT IP

2. STUN

STUN STUN STUN

1.1 NAT

2008/6/27

SIProp

2

UPnPIGD

0. 1. Addressing: DHCP Discovery : SSDP over HTTPMU

Search

WANPPPConnection WANIPConnection

IGD

2.

Description : HTTP

Device description Service description

InternetGatewayDeviceWANPPPConnectionWANIPConnection

3.

Control : SOAP over HTTP

GetExternalIPAddress AddPortMapping GetGenericPortMappingEntry GetSpecificPortMappingEntry DeletePortMapping

Action RequestInternet Gateway DeviceAction

IP

4. 5.

Eventing: GENA over HTTP Presentation: HTTP

SIProp 3

Subscription Event message

2008/6/27

1. NAT

NAT NAT IP

2. STUN

STUN STUN STUN

1.2 NAT

2008/6/27

SIProp

4

rfc 4787

· · ·

· · ·

2000 ?

· · ·

· · ·

: :

2000

2008/6/27

NAT

SIProp

NAT

5

1. NAT

NAT NAT IP

2. STUN

STUN STUN STUN

1.3 IP

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SIProp

6

IPNAT

·

IP

45 3d 03 00 00 0e 64 03 00 b8 3d 00 38 69 24 04 71 5a 3d 00 ba 4a 0e 00 00 0d b8 00

UDP

00 96 69 02 80 00 17 11 24 6a 00 0a 52 00 62 05 c0 00 72

IP

a8 01 00 1c 00 fa 62 08 75

IP

· IPNAT · TCP or UDPNAPT

2008/6/27

SIProp

7

IP

· !?

IP

45 3d 03 00 00 0e 64 03 00 b8 3d 00 38 69 24 04 71 5a 3d 00 ba 4a 0e 00 00 0d b8 00

UDP

00 96 69 02 80 00 17 11 24 6a 00 0a 52 00 62 05 c0 00 72

IP

a8 01 00 1c 00 fa 62 08 75

IP

IP

· STUN

­ rfc 3489bisSTUNIPXOR

2008/6/27 SIProp 8

1. NAT

NAT NAT IP

2. STUN

STUN STUN STUN

2.1 STUN

2008/6/27

SIProp

9

NAT

· rfc 4787rfc 3489STUN

NAT NAT

NAT

NAT

NAT

UDP

UDP

4000

5001

5000

6000

4000

5001

5000

6000

4000

5001

5000

6000

4000

5001

5000

6000

3000

3000

3000

3000

3001

2000 2000

2000 2000

NAT

NAT

NAT

NAT

2008/6/27

SIProp

10

STUN

· /

­ IP

2IP 2

IP1:3478 IP1:3479 IP2:3478 ? IP2:3479 IP1:3478 IP1:3479 IP2:3478 ? IP2:3479 IP1:3478 IP1:3479 IP2:3478 ? IP2:3479

IP& IP&

X

X

X

TEST-I

TEST-II &

TEST-III

· NATNAT ·

IP&IP&NAT

2008/6/27 SIProp 11

1. NAT

NAT NAT IP

2. STUN

STUN STUN STUN

2.2 STUN

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SIProp

12

NAT

· UDP

IP1:3478 IP1:3479 IP2:3478 ? IP2:3479

?

X

TEST-I

­ NAT ­

2008/6/27

SIProp

13

NAT

·

IP1:3478 IP1:3479 IP2:3478 ? IP2:3479

IP1:3478 IP1:3479 IP2:3478 ? IP2:3479

IP1:3478 IP1:3479 IP2:3478 ? IP2:3479

?

?

X

X

X

TEST-I

TEST-I

TEST-I

­ NATNAT

2008/6/27

SIProp

14

NAT

·

IP1:3478 IP1:3479 IP2:3478 ? IP2:3479

IP1:3478 IP1:3479 IP2:3478 ? IP2:3479

IP1:3478 IP1:3479 IP2:3478 ? IP2:3479

?

X

X

?

X

TEST-I

TEST-II &

TEST-III

­ ­ I.D.

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SIProp

15

·

IP1:3478 IP1:3479 IP2:3478 ? IP2:3479

IP1:3478 IP1:3479 IP2:3478 ? IP2:3479

IP1:3478 IP1:3479 IP2:3478 ? IP2:3479

IP1:3478 IP1:3479 IP2:3478 ? IP2:3479

X

X

X

X

TEST-I

TEST-I(2)

TEST-II &

TEST-III

­ TEST-I(2)TEST-II

· · 2

2008/6/27

TEST-IIIP

SIProp 16

1. NAT

NAT NAT IP

2. STUN

STUN STUN STUN

2.3 STUN

2008/6/27

SIProp

17

STUN3IP STUN

· & NAT

IP1:3478 IP1:3479 IP2:3478 IP2:3479 IP3:3479

?

X

· KONAMI ExtensionSTUN Attribute 0x9000

­ CHANGE-REQUEST3 IP

2008/6/27 SIProp 18

TEST-II

· VoIP Conference 2008NAT

­ UPnPIGD ­ STUN

· STUN

­ UDP ­ 2 2

· 3IP STUN

­ ....

2008/6/27

SIProp

19

· RFC

­ rfc 5128 State of Peer-to-Peer (P2P) Communication across Network Address Translators (NATs)

· UDP

2008/6/27

SIProp

20

Information

P2P:NAT

11 pages

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