D-LINK DHCP Relay option 82: различия между версиями

Материал из noname.com.ua
Перейти к навигацииПерейти к поиску
Строка 2: Строка 2:
 
==Настройки коммутатора==
  
==Настройки коммутатора==
 
==DHCP - пакет (детально)==
  
==DHCP - пакет (детально)==
  +
  +
<PRE>
  +
tshark -V ...
  +
  +
  +
Frame 19 (366 bytes on wire, 366 bytes captured)
  +
Arrival Time: Mar 9, 2009 15:24:42.257042000
  +
[Time delta from previous captured frame: 15.000093000 seconds]
  +
[Time delta from previous displayed frame: 15.000093000 seconds]
  +
[Time since reference or first frame: 780.215513000 seconds]
  +
Frame Number: 19
  +
Frame Length: 366 bytes
  +
Capture Length: 366 bytes
  +
[Frame is marked: False]
  +
[Protocols in frame: eth:ip:udp:bootp]
  +
Ethernet II, Src: D-Link_17:c6:28 (00:1c:f0:17:c6:28), Dst: IntelCor_06:8b:c7 (00:1c:c0:06:8b:c7)
  +
Destination: IntelCor_06:8b:c7 (00:1c:c0:06:8b:c7)
  +
Address: IntelCor_06:8b:c7 (00:1c:c0:06:8b:c7)
  +
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
  +
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
  +
Source: D-Link_17:c6:28 (00:1c:f0:17:c6:28)
  +
Address: D-Link_17:c6:28 (00:1c:f0:17:c6:28)
  +
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
  +
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
  +
Type: IP (0x0800)
  +
Internet Protocol, Src: 172.29.14.122 (172.29.14.122), Dst: 172.29.14.1 (172.29.14.1)
  +
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: 352
  +
Identification: 0x00c6 (198)
  +
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: 0xc411 [correct]
  +
[Good: True]
  +
[Bad : False]
  +
Source: 172.29.14.122 (172.29.14.122)
  +
Destination: 172.29.14.1 (172.29.14.1)
  +
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
  +
Source port: bootpc (68)
  +
Destination port: bootps (67)
  +
Length: 332
  +
Checksum: 0x4a5c [correct]
  +
[Good Checksum: True]
  +
[Bad Checksum: False]
  +
Bootstrap Protocol
  +
Message type: Boot Request (1)
  +
Hardware type: Ethernet
  +
Hardware address length: 6
  +
Hops: 1
  +
Transaction ID: 0xa9dbdf39
  +
Seconds elapsed: 28 (little endian bug?)
  +
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: 0.0.0.0 (0.0.0.0)
  +
Relay agent IP address: 172.29.14.122 (172.29.14.122)
  +
Client MAC address: Dell_95:8d:8b (00:1c:23:95:8d:8b)
  +
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: 01001C23958D8B
  +
Hardware type: Ethernet
  +
Client MAC address: Dell_95:8d:8b (00:1c:23:95:8d:8b)
  +
Option: (t=50,l=4) Requested IP Address = 169.254.86.169
  +
Option: (50) Requested IP Address
  +
Length: 4
  +
Value: A9FE56A9
  +
Option: (t=12,l=6) Host Name = "tester"
  +
Option: (12) Host Name
  +
Length: 6
  +
Value: 746573746572
  +
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 Route (Microsoft)
  +
43 = Vendor-Specific Information
  +
Option: (t=43,l=2) Vendor-Specific Information
  +
Option: (43) Vendor-Specific Information
  +
Length: 2
  +
Value: DC00
  +
Option: (t=82,l=25) Agent Information Option
  +
Option: (82) Agent Information Option
  +
Length: 25
  +
Value: 0106000408BC0001020F010D3137322E32392E31342E3132...
  +
Agent Circuit ID: 000408BC0001
  +
Agent Remote ID: 010D3137322E32392E31342E313232
  +
End Option
  +
</PRE>

Версия 15:29, 9 марта 2009

Настройка коммутатора Д-линк

Настройки коммутатора

DHCP - пакет (детально)

tshark -V ...


Frame 19 (366 bytes on wire, 366 bytes captured)
    Arrival Time: Mar  9, 2009 15:24:42.257042000
    [Time delta from previous captured frame: 15.000093000 seconds]
    [Time delta from previous displayed frame: 15.000093000 seconds]
    [Time since reference or first frame: 780.215513000 seconds]
    Frame Number: 19
    Frame Length: 366 bytes
    Capture Length: 366 bytes
    [Frame is marked: False]
    [Protocols in frame: eth:ip:udp:bootp]
Ethernet II, Src: D-Link_17:c6:28 (00:1c:f0:17:c6:28), Dst: IntelCor_06:8b:c7 (00:1c:c0:06:8b:c7)
    Destination: IntelCor_06:8b:c7 (00:1c:c0:06:8b:c7)
        Address: IntelCor_06:8b:c7 (00:1c:c0:06:8b:c7)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Source: D-Link_17:c6:28 (00:1c:f0:17:c6:28)
        Address: D-Link_17:c6:28 (00:1c:f0:17:c6:28)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Type: IP (0x0800)
Internet Protocol, Src: 172.29.14.122 (172.29.14.122), Dst: 172.29.14.1 (172.29.14.1)
    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: 352
    Identification: 0x00c6 (198)
    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: 0xc411 [correct]
        [Good: True]
        [Bad : False]
    Source: 172.29.14.122 (172.29.14.122)
    Destination: 172.29.14.1 (172.29.14.1)
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
    Source port: bootpc (68)
    Destination port: bootps (67)
    Length: 332
    Checksum: 0x4a5c [correct]
        [Good Checksum: True]
        [Bad Checksum: False]
Bootstrap Protocol
    Message type: Boot Request (1)
    Hardware type: Ethernet
    Hardware address length: 6
    Hops: 1
    Transaction ID: 0xa9dbdf39
    Seconds elapsed: 28 (little endian bug?)
    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: 0.0.0.0 (0.0.0.0)
    Relay agent IP address: 172.29.14.122 (172.29.14.122)
    Client MAC address: Dell_95:8d:8b (00:1c:23:95:8d:8b)
    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: 01001C23958D8B
        Hardware type: Ethernet
        Client MAC address: Dell_95:8d:8b (00:1c:23:95:8d:8b)
    Option: (t=50,l=4) Requested IP Address = 169.254.86.169
        Option: (50) Requested IP Address
        Length: 4
        Value: A9FE56A9
    Option: (t=12,l=6) Host Name = "tester"
        Option: (12) Host Name
        Length: 6
        Value: 746573746572
    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 Route (Microsoft)
        43 = Vendor-Specific Information
    Option: (t=43,l=2) Vendor-Specific Information
        Option: (43) Vendor-Specific Information
        Length: 2
        Value: DC00
    Option: (t=82,l=25) Agent Information Option
        Option: (82) Agent Information Option
        Length: 25
        Value: 0106000408BC0001020F010D3137322E32392E31342E3132...
        Agent Circuit ID: 000408BC0001
        Agent Remote ID: 010D3137322E32392E31342E313232
    End Option
Источник — https://noname.com.ua/mediawiki/index.php?title=D-LINK_DHCP_Relay_option_82&oldid=268