DHCP handles Naks one one vlan differently

Booker T. Chip Washington · Guest

Any ideas on the following:

1. System(s)is on a different subnet/network, and boots up cold to new
network
2. System(s) try to obtain an ip address on the new network, but fails
3. If you do a ipconfig/release and renew after booting, system(s)
picks up ip address just fine

We have two networks in the building. One is vlan'd with a relay to
the dhcp server, the other network is vlan'd with no relay to the
dhcp server.

Neither networks use Windows for DHCP services. One network uses an
appliance made by a company called Infoblox)

I'll try and provide a snapshot of some packet captures. In a
nutshell, it seems that when the machines receive a NAK on one system,
all heck breaks loose and it won't get an ip address until you either
rsart or do an ipconfig/ relase and renew...

On the other network(Same building), that same nak does not cause any
undue problems and the computers pick up ip addresses just fine.

Trying to figure out where to start the troubleshooting:

Sample from network with no problem:

No. Time Source Destination
Protocol Info
156 54.426454 0.0.0.0 255.255.255.255
DHCP DHCP Request - Transaction ID 0xb53c66b7

Frame 156 (360 bytes on wire, 360 bytes captured)
Arrival Time: Oct 12, 2007 16:10:09.050184000
[Time delta from previous captured frame: 41.521687000 seconds]
[Time delta from previous displayed frame: 41.521687000 seconds]
[Time since reference or first frame: 54.426454000 seconds]
Frame Number: 156
Frame Length: 360 bytes
Capture Length: 360 bytes
[Frame is marked: True]
[Protocols in frame: eth:ip:udp:bootp]
[Coloring Rule Name: UDP]
[Coloring Rule String: udp]
Ethernet II, Src: Ibm_36:23:ba (ba:23:60:36:23:ba), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Destination: Broadcast (ff:ff:ff:ff:ff:ff)
Address: Broadcast (ff:ff:ff:ff:ff:ff)
.... ...1 .... .... .... .... = IG bit: Group address
(multicast/broadcast)
.... ..1. .... .... .... .... = LG bit: Locally administered
address (this is NOT the factory default)
Source: Ibm_36:23:ba (ba:23:60:36:23:ba)
Address: Ibm_36:23:ba (ba:23:60:36:23:ba)
.... ...0 .... .... .... .... = IG bit: Individual address
(unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique
address (factory default)
Type: IP (0x0800)
Internet Protocol, Src: 0.0.0.0 (0.0.0.0), Dst: 255.255.255.255
(255.255.255.255)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN:
0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 346
Identification: 0x0000 (0)
Flags: 0x00
0... = Reserved bit: Not set
.0.. = Don't fragment: Not set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 128
Protocol: UDP (0x11)
Header checksum: 0x3994 [correct]
[Good: True]
[Bad : False]
Source: 0.0.0.0 (0.0.0.0)
Destination: 255.255.255.255 (255.255.255.255)
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
Source port: bootpc (68)
Destination port: bootps (67)
Length: 326
Checksum: 0xf98e [correct]
[Good Checksum: True]
[Bad Checksum: False]
Bootstrap Protocol
Message type: Boot Request (1)
Hardware type: Ethernet
Hardware address length: 6
Hops: 0
Transaction ID: 0xb53c66b7
Seconds elapsed: 0
Bootp flags: 0x0000 (Unicast)
0... .... .... .... = Broadcast flag: Unicast
.000 0000 0000 0000 = Reserved flags: 0x0000
Client IP address: 0.0.0.0 (0.0.0.0)
Your (client) IP address: 0.0.0.0 (0.0.0.0)
Next server IP address: 0.0.0.0 (0.0.0.0)
Relay agent IP address: 0.0.0.0 (0.0.0.0)
Client MAC address: Ibm_36:23:ba (ba:23:60:36:23:ba)
Server host name not given
Boot file name not given
Magic cookie: (OK)
Option: (t=53,l=1) DHCP Message Type = DHCP Request
Option: (53) DHCP Message Type
Length: 1
Value: 03
Option: (t=61,l=7) Client identifier
Option: (61) Client identifier
Length: 7
Value: 01000D6036A558
Hardware type: Ethernet
Client MAC address: Ibm_36:23:ba (ba:23:60:36:23:ba)
Option: (t=50,l=4) Requested IP Address = 192.168.10.2
Option: (50) Requested IP Address
Length: 4
Value: C0A80A02
Option: (t=12,l=14) Host Name = "xdt-tdx-dg6-n1"
Option: (12) Host Name
Length: 14
Value: 4D47542D477265656E65472D6E31
Option: (t=81,l=18) Client Fully Qualified Domain Name
Option: (81) Client Fully Qualified Domain Name
Length: 18
Value: 0000004D47542D477265656E65472D6E312E
Flags: 0x00
0000 .... = Reserved flags: 0x00
.... 0... = Server DDNS: Some server updates
.... .0.. = Encoding: ASCII encoding
.... ..0. = Server overrides: No override
.... ...0 = Server: Client
A-RR result: 0
PTR-RR result: 0
Client name: xdt-tdx-dg6-n1.
Option: (t=60,l=8) Vendor class identifier = "MSFT 5.0"
Option: (60) Vendor class identifier
Length: 8
Value: 4D53465420352E30
Option: (t=55,l=11) Parameter Request List
Option: (55) Parameter Request List
Length: 11
Value: 010F03062C2E2F1F21F92B
1 = Subnet Mask
15 = Domain Name
3 = Router
6 = Domain Name Server
44 = NetBIOS over TCP/IP Name Server
46 = NetBIOS over TCP/IP Node Type
47 = NetBIOS over TCP/IP Scope
31 = Perform Router Discover
33 = Static Route
249 = Classless static routes
43 = Vendor-Specific Information
End Option

0000 ff ff ff ff ff ff 00 0d 60 36 a5 58 08 00 45
00 ........`6.X..E.
0010 01 5a 00 00 00 00 80 11 39 94 00 00 00 00 ff ff .Z......
9.......
0020 ff ff 00 44 00 43 01 46 f9 8e 01 01 06 00 b5
3c ...D.C.F.......<
0030 66 b7 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f...............
0040 00 00 00 00 00 00 00 0d 60 36 a5 58 00 00 00
00 ........`6.X....
0050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0080 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0090 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0100 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0110 00 00 00 00 00 00 63 82 53 63 35 01 03 3d 07
01 ......c.Sc5..=..
0120 00 0d 60 36 a5 58 32 04 c0 a8 0a 02 0c 0e 4d
47 ..`6.X2.......MG
0130 54 2d 47 72 65 65 6e 65 47 2d 6e 31 51 12 00 00 T-tdx-dg6-
n1Q...
0140 00 4d 47 54 2d 47 72 65 65 6e 65 47 2d 6e 31 2e .xdt-tdx-dg6-
n1.
0150 3c 08 4d 53 46 54 20 35 2e 30 37 0b 01 0f 03 06 <.MSFT
5.07.....
0160 2c 2e 2f 1f 21 f9 2b ff ,./.!.+.

No. Time Source Destination
Protocol Info
157 54.427121 168.207.204.1 255.255.255.255
DHCP DHCP NAK - Transaction ID 0xb53c66b7

Frame 157 (342 bytes on wire, 342 bytes captured)
Arrival Time: Oct 12, 2007 16:10:09.050851000
[Time delta from previous captured frame: 0.000667000 seconds]
[Time delta from previous displayed frame: 0.000667000 seconds]
[Time since reference or first frame: 54.427121000 seconds]
Frame Number: 157
Frame Length: 342 bytes
Capture Length: 342 bytes
[Frame is marked: True]
[Protocols in frame: eth:ip:udp:bootp]
[Coloring Rule Name: UDP]
[Coloring Rule String: udp]
Ethernet II, Src: DellPcba_fe:2b:af (ba:23:56:fe:2b:af), Dst:
Broadcast (ff:ff:ff:ff:ff:ff)
Destination: Broadcast (ff:ff:ff:ff:ff:ff)
Address: Broadcast (ff:ff:ff:ff:ff:ff)
.... ...1 .... .... .... .... = IG bit: Group address
(multicast/broadcast)
.... ..1. .... .... .... .... = LG bit: Locally administered
address (this is NOT the factory default)
Source: DellPcba_fe:2b:af (ba:23:56:fe:2b:af)
Address: DellPcba_fe:2b:af (ba:23:56:fe:2b:af)
.... ...0 .... .... .... .... = IG bit: Individual address
(unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique
address (factory default)
Type: IP (0x0800)
Internet Protocol, Src: 168.207.204.1 (168.207.204.1), Dst:
255.255.255.255 (255.255.255.255)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x10 (DSCP 0x04: Unknown DSCP; ECN:
0x00)
0001 00.. = Differentiated Services Codepoint: Unknown (0x04)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 328
Identification: 0x0000 (0)
Flags: 0x00
0... = Reserved bit: Not set
.0.. = Don't fragment: Not set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 16
Protocol: UDP (0x11)
Header checksum: 0x4dbd [correct]
[Good: True]
[Bad : False]
Source: 168.207.204.1 (168.207.204.1)
Destination: 255.255.255.255 (255.255.255.255)
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
Source port: bootps (67)
Destination port: bootpc (68)
Length: 308
Checksum: 0x3170 [correct]
[Good Checksum: True]
[Bad Checksum: False]
Bootstrap Protocol
Message type: Boot Reply (2)
Hardware type: Ethernet
Hardware address length: 6
Hops: 0
Transaction ID: 0xb53c66b7
Seconds elapsed: 0
Bootp flags: 0x8000 (Broadcast)
1... .... .... .... = Broadcast flag: Broadcast
.000 0000 0000 0000 = Reserved flags: 0x0000
Client IP address: 0.0.0.0 (0.0.0.0)
Your (client) IP address: 0.0.0.0 (0.0.0.0)
Next server IP address: 168.207.204.1 (168.207.204.1)
Relay agent IP address: 0.0.0.0 (0.0.0.0)
Client MAC address: Ibm_36:23:ba (ba:23:60:36:23:ba)
Server host name not given
Boot file name not given
Magic cookie: (OK)
Option: (t=53,l=1) DHCP Message Type = DHCP NAK
Option: (53) DHCP Message Type
Length: 1
Value: 06
Option: (t=54,l=4) Server Identifier = 168.207.204.1
Option: (54) Server Identifier
Length: 4
Value: 8FD7CC01
Option: (t=56,l=31) Message = "requested address not available"
Option: (56) Message
Length: 31
Value: 7265717565737465642061646472657373206E6F74206176...
End Option
Padding

0000 ff ff ff ff ff ff 00 0d 56 fe 2b af 08 00 45 10 ........V.
+...E.
0010 01 48 00 00 00 00 10 11 4d bd 8f d7 cc 01 ff
ff .H......M.......
0020 ff ff 00 43 00 44 01 34 31 70 02 01 06 00 b5 3c ...C.D.
41p.....<
0030 66 b7 00 00 80 00 00 00 00 00 00 00 00 00 8f d7
f...............
0040 cc 01 00 00 00 00 00 0d 60 36 a5 58 00 00 00
00 ........`6.X....
0050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0080 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0090 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0100 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0110 00 00 00 00 00 00 63 82 53 63 35 01 06 36 04
8f ......c.Sc5..6..
0120 d7 cc 01 38 1f 72 65 71 75 65 73 74 65 64 20 61 ...8.requested
a
0130 64 64 72 65 73 73 20 6e 6f 74 20 61 76 61 69 6c ddress not
avail
0140 61 62 6c 65 ff 00 00 00 00 00 00 00 00 00 00 00
able............
0150 00 00 00 00 00 00 ......

No. Time Source Destination
Protocol Info
168 55.437626 0.0.0.0 255.255.255.255
DHCP DHCP Discover - Transaction ID 0xa2021713

Frame 168 (342 bytes on wire, 342 bytes captured)
Arrival Time: Oct 12, 2007 16:10:10.061356000
[Time delta from previous captured frame: 0.102993000 seconds]
[Time delta from previous displayed frame: 0.102993000 seconds]
[Time since reference or first frame: 55.437626000 seconds]
Frame Number: 168
Frame Length: 342 bytes
Capture Length: 342 bytes
[Frame is marked: True]
[Protocols in frame: eth:ip:udp:bootp]
[Coloring Rule Name: UDP]
[Coloring Rule String: udp]
Ethernet II, Src: Ibm_36:23:ba (ba:23:60:36:23:ba), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Destination: Broadcast (ff:ff:ff:ff:ff:ff)
Address: Broadcast (ff:ff:ff:ff:ff:ff)
.... ...1 .... .... .... .... = IG bit: Group address
(multicast/broadcast)
.... ..1. .... .... .... .... = LG bit: Locally administered
address (this is NOT the factory default)
Source: Ibm_36:23:ba (ba:23:60:36:23:ba)
Address: Ibm_36:23:ba (ba:23:60:36:23:ba)
.... ...0 .... .... .... .... = IG bit: Individual address
(unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique
address (factory default)
Type: IP (0x0800)
Internet Protocol, Src: 0.0.0.0 (0.0.0.0), Dst: 255.255.255.255
(255.255.255.255)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN:
0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 328
Identification: 0x0001 (1)
Flags: 0x00
0... = Reserved bit: Not set
.0.. = Don't fragment: Not set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 128
Protocol: UDP (0x11)
Header checksum: 0x39a5 [correct]
[Good: True]
[Bad : False]
Source: 0.0.0.0 (0.0.0.0)
Destination: 255.255.255.255 (255.255.255.255)
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
Source port: bootpc (68)
Destination port: bootps (67)
Length: 308
Checksum: 0xd563 [correct]
[Good Checksum: True]
[Bad Checksum: False]
Bootstrap Protocol
Message type: Boot Request (1)
Hardware type: Ethernet
Hardware address length: 6
Hops: 0
Transaction ID: 0xa2021713
Seconds elapsed: 0
Bootp flags: 0x0000 (Unicast)
0... .... .... .... = Broadcast flag: Unicast
.000 0000 0000 0000 = Reserved flags: 0x0000
Client IP address: 0.0.0.0 (0.0.0.0)
Your (client) IP address: 0.0.0.0 (0.0.0.0)
Next server IP address: 0.0.0.0 (0.0.0.0)
Relay agent IP address: 0.0.0.0 (0.0.0.0)
Client MAC address: Ibm_36:23:ba (ba:23:60:36:23:ba)
Server host name not given
Boot file name not given
Magic cookie: (OK)
Option: (t=53,l=1) DHCP Message Type = DHCP Discover
Option: (53) DHCP Message Type
Length: 1
Value: 01
Option: (t=116,l=1) DHCP Auto-Configuration
Option: (116) DHCP Auto-Configuration
Length: 1
Value: 01
Option: (t=61,l=7) Client identifier
Option: (61) Client identifier
Length: 7
Value: 01000D6036A558
Hardware type: Ethernet
Client MAC address: Ibm_36:23:ba (ba:23:60:36:23:ba)
Option: (t=12,l=14) Host Name = "xdt-tdx-dg6-n1"
Option: (12) Host Name
Length: 14
Value: 4D47542D477265656E65472D6E31
Option: (t=60,l=8) Vendor class identifier = "MSFT 5.0"
Option: (60) Vendor class identifier
Length: 8
Value: 4D53465420352E30
Option: (t=55,l=11) Parameter Request List
Option: (55) Parameter Request List
Length: 11
Value: 010F03062C2E2F1F21F92B
1 = Subnet Mask
15 = Domain Name
3 = Router
6 = Domain Name Server
44 = NetBIOS over TCP/IP Name Server
46 = NetBIOS over TCP/IP Node Type
47 = NetBIOS over TCP/IP Scope
31 = Perform Router Discover
33 = Static Route
249 = Classless static routes
43 = Vendor-Specific Information
End Option
Padding

0000 ff ff ff ff ff ff 00 0d 60 36 a5 58 08 00 45
00 ........`6.X..E.
0010 01 48 00 01 00 00 80 11 39 a5 00 00 00 00 ff ff .H......
9.......
0020 ff ff 00 44 00 43 01 34 d5 63 01 01 06 00 a2 02 ...D.C.
4.c......
0030 17 13 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0040 00 00 00 00 00 00 00 0d 60 36 a5 58 00 00 00
00 ........`6.X....
0050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0080 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0090 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0100 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0110 00 00 00 00 00 00 63 82 53 63 35 01 01 74 01
01 ......c.Sc5..t..
0120 3d 07 01 00 0d 60 36 a5 58 0c 0e 4d 47 54 2d 47 =....`6.X..xdt-
G
0130 72 65 65 6e 65 47 2d 6e 31 3c 08 4d 53 46 54 20 reeneG-
n1<.MSFT
0140 35 2e 30 37 0b 01 0f 03 06 2c 2e 2f 1f 21 f9 2b 5.07.....,./.!.
+
0150 ff 00 00 00 00 00 ......

Sample from network with problem:

No. Time Source Destination
Protocol Info
560 46.748357 0.0.0.0 255.255.255.255
DHCP DHCP Request - Transaction ID 0xc7b00dda

Frame 560 (360 bytes on wire, 360 bytes captured)
Arrival Time: Oct 12, 2007 16:52:48.477579000
[Time delta from previous captured frame: 0.250986000 seconds]
[Time delta from previous displayed frame: 0.250986000 seconds]
[Time since reference or first frame: 46.748357000 seconds]
Frame Number: 560
Frame Length: 360 bytes
Capture Length: 360 bytes
[Frame is marked: True]
[Protocols in frame: eth:ip:udp:bootp]
[Coloring Rule Name: UDP]
[Coloring Rule String: udp]
Ethernet II, Src: Ibm_36:23:ba (ba:23:60:36:23:ba), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Destination: Broadcast (ff:ff:ff:ff:ff:ff)
Address: Broadcast (ff:ff:ff:ff:ff:ff)
.... ...1 .... .... .... .... = IG bit: Group address
(multicast/broadcast)
.... ..1. .... .... .... .... = LG bit: Locally administered
address (this is NOT the factory default)
Source: Ibm_36:23:ba (ba:23:60:36:23:ba)
Address: Ibm_36:23:ba (ba:23:60:36:23:ba)
.... ...0 .... .... .... .... = IG bit: Individual address
(unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique
address (factory default)
Type: IP (0x0800)
Internet Protocol, Src: 0.0.0.0 (0.0.0.0), Dst: 255.255.255.255
(255.255.255.255)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN:
0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 346
Identification: 0x0000 (0)
Flags: 0x00
0... = Reserved bit: Not set
.0.. = Don't fragment: Not set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 128
Protocol: UDP (0x11)
Header checksum: 0x3994 [correct]
[Good: True]
[Bad : False]
Source: 0.0.0.0 (0.0.0.0)
Destination: 255.255.255.255 (255.255.255.255)
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
Source port: bootpc (68)
Destination port: bootps (67)
Length: 326
Checksum: 0x3ff8 [correct]
[Good Checksum: True]
[Bad Checksum: False]
Bootstrap Protocol
Message type: Boot Request (1)
Hardware type: Ethernet
Hardware address length: 6
Hops: 0
Transaction ID: 0xc7b00dda
Seconds elapsed: 0
Bootp flags: 0x0000 (Unicast)
0... .... .... .... = Broadcast flag: Unicast
.000 0000 0000 0000 = Reserved flags: 0x0000
Client IP address: 0.0.0.0 (0.0.0.0)
Your (client) IP address: 0.0.0.0 (0.0.0.0)
Next server IP address: 0.0.0.0 (0.0.0.0)
Relay agent IP address: 0.0.0.0 (0.0.0.0)
Client MAC address: Ibm_36:23:ba (ba:23:60:36:23:ba)
Server host name not given
Boot file name not given
Magic cookie: (OK)
Option: (t=53,l=1) DHCP Message Type = DHCP Request
Option: (53) DHCP Message Type
Length: 1
Value: 03
Option: (t=61,l=7) Client identifier
Option: (61) Client identifier
Length: 7
Value: 01000D6036A558
Hardware type: Ethernet
Client MAC address: Ibm_36:23:ba (ba:23:60:36:23:ba)
Option: (t=50,l=4) Requested IP Address = 192.168.10.2
Option: (50) Requested IP Address
Length: 4
Value: C0A80A02
Option: (t=12,l=14) Host Name = "xdt-tdx-dg6-n1"
Option: (12) Host Name
Length: 14
Value: 4D47542D477265656E65472D6E31
Option: (t=81,l=18) Client Fully Qualified Domain Name
Option: (81) Client Fully Qualified Domain Name
Length: 18
Value: 0000004D47542D477265656E65472D6E312E
Flags: 0x00
0000 .... = Reserved flags: 0x00
.... 0... = Server DDNS: Some server updates
.... .0.. = Encoding: ASCII encoding
.... ..0. = Server overrides: No override
.... ...0 = Server: Client
A-RR result: 0
PTR-RR result: 0
Client name: xdt-tdx-dg6-n1.
Option: (t=60,l=8) Vendor class identifier = "MSFT 5.0"
Option: (60) Vendor class identifier
Length: 8
Value: 4D53465420352E30
Option: (t=55,l=11) Parameter Request List
Option: (55) Parameter Request List
Length: 11
Value: 010F03062C2E2F1F21F92B
1 = Subnet Mask
15 = Domain Name
3 = Router
6 = Domain Name Server
44 = NetBIOS over TCP/IP Name Server
46 = NetBIOS over TCP/IP Node Type
47 = NetBIOS over TCP/IP Scope
31 = Perform Router Discover
33 = Static Route
249 = Classless static routes
43 = Vendor-Specific Information
End Option

0000 ff ff ff ff ff ff 00 0d 60 36 a5 58 08 00 45
00 ........`6.X..E.
0010 01 5a 00 00 00 00 80 11 39 94 00 00 00 00 ff ff .Z......
9.......
0020 ff ff 00 44 00 43 01 46 3f f8 01 01 06 00 c7
b0 ...D.C.F?.......
0030 0d da 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0040 00 00 00 00 00 00 00 0d 60 36 a5 58 00 00 00
00 ........`6.X....
0050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0080 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0090 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0100 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0110 00 00 00 00 00 00 63 82 53 63 35 01 03 3d 07
01 ......c.Sc5..=..
0120 00 0d 60 36 a5 58 32 04 c0 a8 0a 02 0c 0e 4d
47 ..`6.X2.......MG
0130 54 2d 47 72 65 65 6e 65 47 2d 6e 31 51 12 00 00 T-tdx-dg6-
n1Q...
0140 00 4d 47 54 2d 47 72 65 65 6e 65 47 2d 6e 31 2e .xdt-tdx-dg6-
n1.
0150 3c 08 4d 53 46 54 20 35 2e 30 37 0b 01 0f 03 06 <.MSFT
5.07.....
0160 2c 2e 2f 1f 21 f9 2b ff ,./.!.+.

No. Time Source Destination
Protocol Info
561 46.751195 115.345.57.1 115.345.57.255
DHCP DHCP NAK - Transaction ID 0xc7b00dda

Frame 561 (342 bytes on wire, 342 bytes captured)
Arrival Time: Oct 12, 2007 16:52:48.480417000
[Time delta from previous captured frame: 0.002838000 seconds]
[Time delta from previous displayed frame: 0.002838000 seconds]
[Time since reference or first frame: 46.751195000 seconds]
Frame Number: 561
Frame Length: 342 bytes
Capture Length: 342 bytes
[Frame is marked: True]
[Protocols in frame: eth:ip:udp:bootp]
[Coloring Rule Name: UDP]
[Coloring Rule String: udp]
Ethernet II, Src: Cisco_f4:14:00 (00:11:bc:f4:14:00), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Destination: Broadcast (ff:ff:ff:ff:ff:ff)
Address: Broadcast (ff:ff:ff:ff:ff:ff)
.... ...1 .... .... .... .... = IG bit: Group address
(multicast/broadcast)
.... ..1. .... .... .... .... = LG bit: Locally administered
address (this is NOT the factory default)
Source: Cisco_f4:14:00 (00:11:bc:f4:14:00)
Address: Cisco_f4:14:00 (00:11:bc:f4:14:00)
.... ...0 .... .... .... .... = IG bit: Individual address
(unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique
address (factory default)
Type: IP (0x0800)
Internet Protocol, Src: 115.345.57.1 (115.345.57.1), Dst:
115.345.57.255 (115.345.57.255)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN:
0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 328
Identification: 0xf6b6 (63158)
Flags: 0x00
0... = Reserved bit: Not set
.0.. = Don't fragment: Not set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 255
Protocol: UDP (0x11)
Header checksum: 0x4b4f [correct]
[Good: True]
[Bad : False]
Source: 115.345.57.1 (115.345.57.1)
Destination: 115.345.57.255 (115.345.57.255)
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
Source port: bootps (67)
Destination port: bootpc (68)
Length: 308
Checksum: 0xb95b [correct]
[Good Checksum: True]
[Bad Checksum: False]
Bootstrap Protocol
Message type: Boot Reply (2)
Hardware type: Ethernet
Hardware address length: 6
Hops: 1
Transaction ID: 0xc7b00dda
Seconds elapsed: 0
Bootp flags: 0x8000 (Broadcast)
1... .... .... .... = Broadcast flag: Broadcast
.000 0000 0000 0000 = Reserved flags: 0x0000
Client IP address: 0.0.0.0 (0.0.0.0)
Your (client) IP address: 0.0.0.0 (0.0.0.0)
Next server IP address: 115.345.244.211 (115.345.244.211)
Relay agent IP address: 115.345.57.1 (115.345.57.1)
Client MAC address: Ibm_36:23:ba (ba:23:60:36:23:ba)
Server host name not given
Boot file name not given
Magic cookie: (OK)
Option: (t=53,l=1) DHCP Message Type = DHCP NAK
Option: (53) DHCP Message Type
Length: 1
Value: 06
Option: (t=54,l=4) Server Identifier = 115.345.244.211
Option: (54) Server Identifier
Length: 4
Value: 82CFF4D3
Option: (t=56,l=31) Message = "requested address not available"
Option: (56) Message
Length: 31
Value: 7265717565737465642061646472657373206E6F74206176...
End Option
Padding

0000 ff ff ff ff ff ff 00 11 bc f4 14 00 08 00 45
00 ..............E.
0010 01 48 f6 b6 00 00 ff 11 4b 4f 82 cf 39 01 82 cf .H......KO..
9...
0020 39 ff 00 43 00 44 01 34 b9 5b 02 01 06 01 c7 b0 9..C.D.4.
[......
0030 0d da 00 00 80 00 00 00 00 00 00 00 00 00 82
cf ................
0040 f4 d3 82 cf 39 01 00 0d 60 36 a5 58 00 00 00 00 ....
9...`6.X....
0050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0080 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0090 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0100 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0110 00 00 00 00 00 00 63 82 53 63 35 01 06 36 04
82 ......c.Sc5..6..
0120 cf f4 d3 38 1f 72 65 71 75 65 73 74 65 64 20 61 ...8.requested
a
0130 64 64 72 65 73 73 20 6e 6f 74 20 61 76 61 69 6c ddress not
avail
0140 61 62 6c 65 ff 00 00 00 00 00 00 00 00 00 00 00
able............
0150 00 00 00 00 00 00 ......

No. Time Source Destination
Protocol Info
582 50.748085 0.0.0.0 255.255.255.255
DHCP DHCP Request - Transaction ID 0xc7b00dda

Frame 582 (360 bytes on wire, 360 bytes captured)
Arrival Time: Oct 12, 2007 16:52:52.477307000
[Time delta from previous captured frame: 0.129517000 seconds]
[Time delta from previous displayed frame: 0.129517000 seconds]
[Time since reference or first frame: 50.748085000 seconds]
Frame Number: 582
Frame Length: 360 bytes
Capture Length: 360 bytes
[Frame is marked: True]
[Protocols in frame: eth:ip:udp:bootp]
[Coloring Rule Name: UDP]
[Coloring Rule String: udp]
Ethernet II, Src: Ibm_36:23:ba (ba:23:60:36:23:ba), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Destination: Broadcast (ff:ff:ff:ff:ff:ff)
Address: Broadcast (ff:ff:ff:ff:ff:ff)
.... ...1 .... .... .... .... = IG bit: Group address
(multicast/broadcast)
.... ..1. .... .... .... .... = LG bit: Locally administered
address (this is NOT the factory default)
Source: Ibm_36:23:ba (ba:23:60:36:23:ba)
Address: Ibm_36:23:ba (ba:23:60:36:23:ba)
.... ...0 .... .... .... .... = IG bit: Individual address
(unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique
address (factory default)
Type: IP (0x0800)
Internet Protocol, Src: 0.0.0.0 (0.0.0.0), Dst: 255.255.255.255
(255.255.255.255)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN:
0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 346
Identification: 0x0001 (1)
Flags: 0x00
0... = Reserved bit: Not set
.0.. = Don't fragment: Not set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 128
Protocol: UDP (0x11)
Header checksum: 0x3993 [correct]
[Good: True]
[Bad : False]
Source: 0.0.0.0 (0.0.0.0)
Destination: 255.255.255.255 (255.255.255.255)
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
Source port: bootpc (68)
Destination port: bootps (67)
Length: 326
Checksum: 0x3bf8 [correct]
[Good Checksum: True]
[Bad Checksum: False]
Bootstrap Protocol
Message type: Boot Request (1)
Hardware type: Ethernet
Hardware address length: 6
Hops: 0
Transaction ID: 0xc7b00dda
Seconds elapsed: 1024
Bootp flags: 0x0000 (Unicast)
0... .... .... .... = Broadcast flag: Unicast
.000 0000 0000 0000 = Reserved flags: 0x0000
Client IP address: 0.0.0.0 (0.0.0.0)
Your (client) IP address: 0.0.0.0 (0.0.0.0)
Next server IP address: 0.0.0.0 (0.0.0.0)
Relay agent IP address: 0.0.0.0 (0.0.0.0)
Client MAC address: Ibm_36:23:ba (ba:23:60:36:23:ba)
Server host name not given
Boot file name not given
Magic cookie: (OK)
Option: (t=53,l=1) DHCP Message Type = DHCP Request
Option: (53) DHCP Message Type
Length: 1
Value: 03
Option: (t=61,l=7) Client identifier
Option: (61) Client identifier
Length: 7
Value: 01000D6036A558
Hardware type: Ethernet
Client MAC address: Ibm_36:23:ba (ba:23:60:36:23:ba)
Option: (t=50,l=4) Requested IP Address = 192.168.10.2
Option: (50) Requested IP Address
Length: 4
Value: C0A80A02
Option: (t=12,l=14) Host Name = "xdt-tdx-dg6-n1"
Option: (12) Host Name
Length: 14
Value: 4D47542D477265656E65472D6E31
Option: (t=81,l=18) Client Fully Qualified Domain Name
Option: (81) Client Fully Qualified Domain Name
Length: 18
Value: 0000004D47542D477265656E65472D6E312E
Flags: 0x00
0000 .... = Reserved flags: 0x00
.... 0... = Server DDNS: Some server updates
.... .0.. = Encoding: ASCII encoding
.... ..0. = Server overrides: No override
.... ...0 = Server: Client
A-RR result: 0
PTR-RR result: 0
Client name: xdt-tdx-dg6-n1.
Option: (t=60,l=8) Vendor class identifier = "MSFT 5.0"
Option: (60) Vendor class identifier
Length: 8
Value: 4D53465420352E30
Option: (t=55,l=11) Parameter Request List
Option: (55) Parameter Request List
Length: 11
Value: 010F03062C2E2F1F21F92B
1 = Subnet Mask
15 = Domain Name
3 = Router
6 = Domain Name Server
44 = NetBIOS over TCP/IP Name Server
46 = NetBIOS over TCP/IP Node Type
47 = NetBIOS over TCP/IP Scope
31 = Perform Router Discover
33 = Static Route
249 = Classless static routes
43 = Vendor-Specific Information
End Option

0000 ff ff ff ff ff ff 00 0d 60 36 a5 58 08 00 45
00 ........`6.X..E.
0010 01 5a 00 01 00 00 80 11 39 93 00 00 00 00 ff ff .Z......
9.......
0020 ff ff 00 44 00 43 01 46 3b f8 01 01 06 00 c7
b0 ...D.C.F;.......
0030 0d da 04 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0040 00 00 00 00 00 00 00 0d 60 36 a5 58 00 00 00
00 ........`6.X....
0050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0080 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0090 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0100 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0110 00 00 00 00 00 00 63 82 53 63 35 01 03 3d 07
01 ......c.Sc5..=..
0120 00 0d 60 36 a5 58 32 04 c0 a8 0a 02 0c 0e 4d
47 ..`6.X2.......MG
0130 54 2d 47 72 65 65 6e 65 47 2d 6e 31 51 12 00 00 T-tdx-dg6-
n1Q...
0140 00 4d 47 54 2d 47 72 65 65 6e 65 47 2d 6e 31 2e .xdt-tdx-dg6-
n1.
0150 3c 08 4d 53 46 54 20 35 2e 30 37 0b 01 0f 03 06 <.MSFT
5.07.....
0160 2c 2e 2f 1f 21 f9 2b ff ,./.!.+.

No. Time Source Destination
Protocol Info
583 50.751364 115.345.57.1 115.345.57.255
DHCP DHCP NAK - Transaction ID 0xc7b00dda

Frame 583 (342 bytes on wire, 342 bytes captured)
Arrival Time: Oct 12, 2007 16:52:52.480586000
[Time delta from previous captured frame: 0.003279000 seconds]
[Time delta from previous displayed frame: 0.003279000 seconds]
[Time since reference or first frame: 50.751364000 seconds]
Frame Number: 583
Frame Length: 342 bytes
Capture Length: 342 bytes
[Frame is marked: True]
[Protocols in frame: eth:ip:udp:bootp]
[Coloring Rule Name: UDP]
[Coloring Rule String: udp]
Ethernet II, Src: Cisco_f4:14:00 (00:11:bc:f4:14:00), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Destination: Broadcast (ff:ff:ff:ff:ff:ff)
Address: Broadcast (ff:ff:ff:ff:ff:ff)
.... ...1 .... .... .... .... = IG bit: Group address
(multicast/broadcast)
.... ..1. .... .... .... .... = LG bit: Locally administered
address (this is NOT the factory default)
Source: Cisco_f4:14:00 (00:11:bc:f4:14:00)
Address: Cisco_f4:14:00 (00:11:bc:f4:14:00)
.... ...0 .... .... .... .... = IG bit: Individual address
(unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique
address (factory default)
Type: IP (0x0800)
Internet Protocol, Src: 115.345.57.1 (115.345.57.1), Dst:
115.345.57.255 (115.345.57.255)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN:
0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 328
Identification: 0xf6b8 (63160)
Flags: 0x00
0... = Reserved bit: Not set
.0.. = Don't fragment: Not set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 255
Protocol: UDP (0x11)
Header checksum: 0x4b4d [correct]
[Good: True]
[Bad : False]
Source: 115.345.57.1 (115.345.57.1)
Destination: 115.345.57.255 (115.345.57.255)
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
Source port: bootps (67)
Destination port: bootpc (68)
Length: 308
Checksum: 0xb55b [correct]
[Good Checksum: True]
[Bad Checksum: False]
Bootstrap Protocol
Message type: Boot Reply (2)
Hardware type: Ethernet
Hardware address length: 6
Hops: 1
Transaction ID: 0xc7b00dda
Seconds elapsed: 1024
Bootp flags: 0x8000 (Broadcast)
1... .... .... .... = Broadcast flag: Broadcast
.000 0000 0000 0000 = Reserved flags: 0x0000
Client IP address: 0.0.0.0 (0.0.0.0)
Your (client) IP address: 0.0.0.0 (0.0.0.0)
Next server IP address: 115.345.244.211 (115.345.244.211)
Relay agent IP address: 115.345.57.1 (115.345.57.1)
Client MAC address: Ibm_36:23:ba (ba:23:60:36:23:ba)
Server host name not given
Boot file name not given
Magic cookie: (OK)
Option: (t=53,l=1) DHCP Message Type = DHCP NAK
Option: (53) DHCP Message Type
Length: 1
Value: 06
Option: (t=54,l=4) Server Identifier = 115.345.244.211
Option: (54) Server Identifier
Length: 4
Value: 82CFF4D3
Option: (t=56,l=31) Message = "requested address not available"
Option: (56) Message
Length: 31
Value: 7265717565737465642061646472657373206E6F74206176...
End Option
Padding

0000 ff ff ff ff ff ff 00 11 bc f4 14 00 08 00 45
00 ..............E.
0010 01 48 f6 b8 00 00 ff 11 4b 4d 82 cf 39 01 82 cf .H......KM..
9...
0020 39 ff 00 43 00 44 01 34 b5 5b 02 01 06 01 c7 b0 9..C.D.4.
[......
0030 0d da 04 00 80 00 00 00 00 00 00 00 00 00 82
cf ................
0040 f4 d3 82 cf 39 01 00 0d 60 36 a5 58 00 00 00 00 ....
9...`6.X....
0050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0080 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0090 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0100 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
0110 00 00 00 00 00 00 63 82 53 63 35 01 06 36 04
82 ......c.Sc5..6..
0120 cf f4 d3 38 1f 72 65 71 75 65 73 74 65 64 20 61 ...8.requested
a
0130 64 64 72 65 73 73 20 6e 6f 74 20 61 76 61 69 6c ddress not
avail
0140 61 62 6c 65 ff 00 00 00 00 00 00 00 00 00 00 00
able............
0150 00 00 00 00 00 00 ......

Thrill5 · Guest

If the problem is on the network with the DHCP server, I would say that this
is a problem on the Infobox DHCP server and would call them. Alternatively,
move the clients on the same subnet as the DHCP server to a different
subnet.

"Booker T. Chip Washington - 87'" <chipw@mierbo.com> wrote in message
news:1192485122.369994.36920@v23g2000prn.googlegroups.com...