Ethereal output showing the actual client identifiers in the hex dumps

ethereal.out (text/plain), 10.63 KB, created by Jerry McDonald on 2007-07-27 20:46:25 UTC

# tethereal -i eth0 -V -x -f "port bootps or port bootpc"
Capturing on eth0
Frame 1 (590 bytes on wire, 590 bytes captured)
    Arrival Time: Jul 27, 2007 16:18:56.202124000
    Time delta from previous packet: 0.000000000 seconds
    Time since reference or first frame: 0.000000000 seconds
    Frame Number: 1
    Packet Length: 590 bytes
    Capture Length: 590 bytes
    Protocols in frame: eth:ip:udp:bootp
Ethernet II, Src: Micro-St_ca:a7:71 (00:11:09:ca:a7:71), 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 .... .... .... .... = Multicast: This is a MULTICAST frame
        .... ..1. .... .... .... .... = Locally Administrated Address: This is NOT a factory default address
    Source: Micro-St_ca:a7:71 (00:11:09:ca:a7:71)
        Address: Micro-St_ca:a7:71 (00:11:09:ca:a7:71)
        .... ...0 .... .... .... .... = Multicast: This is a UNICAST frame
        .... ..0. .... .... .... .... = Locally Administrated Address: This is a FACTORY DEFAULT address
    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: 576
    Identification: 0x5f3d (24381)
    Flags: 0x00
        0... = Reserved bit: Not set
        .0.. = Don't fragment: Not set
        ..0. = More fragments: Not set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x1971 [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: 556
    Checksum: 0xf8e6 [correct]
Bootstrap Protocol
    Message type: Boot Request (1)
    Hardware type: Ethernet
    Hardware address length: 6
    Hops: 0
    Transaction ID: 0xc4cdd555
    Seconds elapsed: 10
    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: Micro-St_ca:a7:71 (00:11:09:ca:a7:71)
    Server host name not given
    Boot file name not given
    Magic cookie: (OK)
    Option 53: DHCP Message Type = DHCP Request
    Option 57: Maximum DHCP Message Size = 576
    Option 50: Requested IP Address = 172.16.7.99
    Option 51: IP Address Lease Time = infinity
    Option 55: Parameter Request List
        1 = Subnet Mask
        3 = Router
        6 = Domain Name Server
        12 = Host Name
        15 = Domain Name
        17 = Root Path
        23 = Default IP Time-to-Live
        28 = Broadcast Address
        29 = Perform Mask Discovery
        31 = Perform Router Discover
        33 = Static Route
        40 = Network Information Service Domain
        41 = Network Information Service Servers
        42 = Network Time Protocol Servers
        119 = Domain Search
    Option 12: Host Name = "Atlas"
    Option 60: Vendor class identifier = "Linux 2.6.20-gentoo-r8 x86_64"
    Option 61: Client identifier (6 bytes)
    End Option
    Padding

0000  ff ff ff ff ff ff 00 11 09 ca a7 71 08 00 45 00   ...........q..E.
0010  02 40 5f 3d 00 00 40 11 19 71 00 00 00 00 ff ff   .@_=..@..q......
0020  ff ff 00 44 00 43 02 2c f8 e6 01 01 06 00 c4 cd   ...D.C.,........
0030  d5 55 00 0a 00 00 00 00 00 00 00 00 00 00 00 00   .U..............
0040  00 00 00 00 00 00 00 11 09 ca a7 71 00 00 00 00   ...........q....
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 39 02 02   ......c.Sc5..9..
0120  40 32 04 ac 10 07 63 33 04 ff ff ff ff 37 0f 01   @2....c3.....7..
0130  03 06 0c 0f 11 17 1c 1d 1f 21 28 29 2a 77 0c 06   .........!()*w..
0140  41 74 6c 61 73 00 3c 1d 4c 69 6e 75 78 20 32 2e   Atlas.<.Linux 2.
0150  36 2e 32 30 2d 67 65 6e 74 6f 6f 2d 72 38 20 78   6.20-gentoo-r8 x
0160  38 36 5f 36 34 3d 06 00 4c 69 6e 75 78 ff 00 00   86_64=..Linux...
0170  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
0180  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
0190  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
01a0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
01b0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
01c0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
01d0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
01e0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
01f0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
0200  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
0210  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
0220  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
0230  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
0240  00 00 00 00 00 00 00 00 00 00 00 00 00 00         ..............

------------------------------------------------------
# tethereal -i eth0 -V -x -f "port bootps or port bootpc"
Capturing on eth0
Frame 1 (342 bytes on wire, 342 bytes captured)
    Arrival Time: Jul 27, 2007 16:30:30.302889000
    Time delta from previous packet: 0.000000000 seconds
    Time since reference or first frame: 0.000000000 seconds
    Frame Number: 1
    Packet Length: 342 bytes
    Capture Length: 342 bytes
    Protocols in frame: eth:ip:udp:bootp
Ethernet II, Src: Micro-St_ca:a7:71 (00:11:09:ca:a7:71), 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 .... .... .... .... = Multicast: This is a MULTICAST frame
        .... ..1. .... .... .... .... = Locally Administrated Address: This is NOT a factory default address
    Source: Micro-St_ca:a7:71 (00:11:09:ca:a7:71)
        Address: Micro-St_ca:a7:71 (00:11:09:ca:a7:71)
        .... ...0 .... .... .... .... = Multicast: This is a UNICAST frame
        .... ..0. .... .... .... .... = Locally Administrated Address: This is a FACTORY DEFAULT address
    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: 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: 64
    Protocol: UDP (0x11)
    Header checksum: 0x7996 [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: 0x9833 [correct]
Bootstrap Protocol
    Message type: Boot Request (1)
    Hardware type: Ethernet
    Hardware address length: 6
    Hops: 0
    Transaction ID: 0xa38c2e04
    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: Micro-St_ca:a7:71 (00:11:09:ca:a7:71)
    Server host name not given
    Boot file name not given
    Magic cookie: (OK)
    Option 53: DHCP Message Type = DHCP Discover
    Option 55: Parameter Request List
        6 = Domain Name Server
    Option 12: Host Name = "Atlas"
    Option 60: Vendor class identifier = "dhcpcd 3.0.16"
    Option 61: Client identifier (6 bytes)
    End Option
    Padding

0000  ff ff ff ff ff ff 00 11 09 ca a7 71 08 00 45 10   ...........q..E.
0010  01 48 00 00 00 00 40 11 79 96 00 00 00 00 ff ff   .H....@.y.......
0020  ff ff 00 44 00 43 01 34 98 33 01 01 06 00 a3 8c   ...D.C.4.3......
0030  2e 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
0040  00 00 00 00 00 00 00 11 09 ca a7 71 00 00 00 00   ...........q....
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 37 01 06   ......c.Sc5..7..
0120  0c 05 41 74 6c 61 73 3c 0d 64 68 63 70 63 64 20   ..Atlas<.dhcpcd 
0130  33 2e 30 2e 31 36 3d 06 00 65 74 68 30 00 ff 00   3.0.16=..eth0...
0140  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
0150  00 00 00 00 00 00                                 ......