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4. SunRay DHCP Communication

With DHCP response separation in mind, the following tables outline the DHCP communication during the Sun Ray Thin Client boot time.

DHCP Request (1) From Sun Ray Thin Client: DHCP DISCOVER

Opcode 1
Hardware Type 1
Hardware Address Length 6
Hop Count 0
Transaction ID DF 8C CE A1
Number of Seconds 2
Flags  
Client IP 0.0.0.0
my IP 0.0.0.0
Server IP 0.0.0.0
Gateway IP 0.0.0.0
Client Hardware Address 08 00 20 F8 1E 0A
Server Hostname  
Boot Filename  
Vendor Specific Info 63 82 53 63 35 01 01 3C 0E 53 55 4E 57 2E 4E 65 77 54 2E 53 55 4E 57 3D 07 01 08 00 20 F8 1E 0A FF
Vendor Specific Info (decoded) 63 82 53 63 (Magic cookie)

35 01 01 (DHCP DISCOVER)

3C 0E 53 55 4E 57 2E 4E 65 77 54 2E 53 55 4E 57
(String: "SUNW.NewT.SUNW")

3D 07 01 08 00 20 F8 1E 0A (MAC Address: "08:00:20:F8:1E:0A")

FF (end of vendor)

DHCP Response (1) From Standard DHCP Server with regular network parameters: DHCP OFFER

Opcode 2
Hardware Type 1
Hardware Address Length 6
Hop Count 1
Transaction ID DF 8C CE A1
Number of Seconds 2
Flags  
Client IP 128.59.61.25
my IP 0.0.0.0
Server IP 128.59.59.25
Gateway IP 128.59.61.1
Client Hardware Address 08 00 20 F8 1E 0A
Server Hostname  
Boot Filename  
Vendor Specific Info (RFC1048)

DHCP: OFFER

SID: 128.59.59.25

LT: 3600

SM: 255.255.255.0

DG: 128.59.61.1

NS: 128.59.59.70, 128.59.62.10

RN: 1800

RB: 3150

BR: 128.59.61.255

WNS: 128.59.59.20

WNT: h-node

DN: columbia.edu

DHCP Request (2) From Sun Ray Thin Client: DHCP INFORM

Opcode 1
Hardware Type 1
Hardware Address Length 6
Hop Count 0
Transaction ID DF 8C CE A2
Number of Seconds 2
Flags  
Client IP 128.59.61.25
my IP 0.0.0.0
Server IP 0.0.0.0
Gateway IP 0.0.0.0
Client Hardware Address 08 00 20 F8 1E 0A
Server Hostname  
Boot Filename  
Vendor Specific Info 63 82 53 63 35 01 08 37 02 31 2B 3C 0E 53 55 4E 57 2E 4E 65 77 54 2E 53 55 4E 57 3D 07 01 08 00 20 F8 A8 7A FF
Vendor Specific Info (decoded) 63 82 53 63 (Magic cookie)

35 01 08 (DHCP INFORM)

37 02 31 2B

3C 0E 53 55 4E 57 2E 4E 65 77 54 2E 53 55 4E 57
(String: "SUNW.NewT.SUNW")

3D 07 01 08 00 20 F8 1E 0A (MAC Address: "08:00:20:B6:2C:54")

FF (end of vendor)

DHCP Response (2) From SunRay DHCP or Custom-designed DHCP Server with Sun Ray network parameters: DHCP ACK

Opcode 2
Hardware Type 1
Hardware Address Length 6
Hop Count 1
Transaction ID DF 8C CE A2
Number of Seconds 2
Flags  
Client IP 128.59.61.25
my IP 0.0.0.0
Server IP 128.59.59.25
Gateway IP 128.59.61.1
Client Hardware Address 08 00 20 F8 1E 0A
Server Hostname  
Boot Filename  
Vendor Specific Info 63 82 53 63 35 01 05 36 04 A0 27 C8 12 03 04 A0 27 C8 12 1A 02 05 DC 01 04 FF FF 00 00 1C 04 A0 27 FF FF 2B 46 17 27 32 2E 30 5F 33 37 2E 62 5F 31 31 34 38 38 30 2D 30 36 2C 52 45 56 3D 32 30 30 34 2E 30 38 2E 31 39 2E 31 34 2E 34 34 21 04 68 6D 65 30 1F 04 A0 27 C8 12 15 04 A0 27 C8 12 1D 01 06 1C 01 06 1B 01 06 1A 01 06 19 01 06 18 04 A0 27 C8 12 FF
Vendor Specific Info (RFC1048)

63 82 53 63 (Magic cookie)

35 01 05 (DHCP ACK)

36 04 A0 27 C8 12 (SID: 160.39.200.18)

03 04 A0 27 C8 12 (DG: 160.39.200.18)

1A 02 05 DC (MTU: 1500)

01 04 FF FF 00 00 (SM: 255.255.0.0)

1C 04 A0 27 FF FF (BR: 160.39.255.255)

2B 46 17 27 32 2E 30 5F 33 37 2E 62 5F 31 31 34 38 38 30 2D 30 36 2C 52 45 56 3D 32 30 30 34 2E 30 38 2E 31 39 2E 31 34 2E 34 34 21 04 68 6D 65 30 1F 04 A0 27 C8 12 15 04 A0 27 C8 12 1D 01 06 1C 01 06 1B 01 06 1A 01 06 19 01 06 18 04 16 02 1B 61 (VO: ...)

VO Vendor Options (decoded)

17 27 32 2E 30 5F 33 37 2E 62 5F 31 31 34 38 38 30 2D 30 36 2C 52 45 56 3D 32 30 30 34 2E 30 38 2E 31 39 2E 31 34 2E 34 34
(NewTVer: 2.0_37.b_114880-06,REV=2004.08.19.14.44)

21 04 68 6D 65 30
(Interface used for Sun Ray service [Intf]: hme0)

1F 04 A0 27 C8 12
(Firmware server IP address (needed for firmware upgrade) [FWSrvr]: 160.39.200.18)

15 04 A0 27 C8 12
(Sun Ray server IP address to connect to [AuthSrvr]: 160.39.200.18)

1D 01 06
(Log level for application [LogAppl]: 6)

1C 01 06
(Log level for video [LogVid]: 6)

1B 01 06
(Log level for USB [LogUSB]: 6)

1A 01 06
(Log level for network [LogNet]: 6)

19 01 06
(Log level for kernel [LogKern]: 6)

18 04 A0 27 C8 12
(Log level for host [LogHost]: 160.39.200.18)