DHCP-ack抓包

No. Time Source Destination Protocol Info
2 0.013341 192.168.137.1 255.255.255.255 DHCP DHCP ACK - Transaction ID 0xf6d7ec89

Frame 2: 349 bytes on wire (2792 bits), 349 bytes captured (2792 bits)
Ethernet II, Src: 9e:c8:4b:80:4c:25 (9e:c8:4b:80:4c:25), 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: 9e:c8:4b:80:4c:25 (9e:c8:4b:80:4c:25)
Address: 9e:c8:4b:80:4c:25 (9e:c8:4b:80:4c:25)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
.... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
Type: IP (0x0800)
Internet Protocol, Src: 192.168.137.1 (192.168.137.1), 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: 335
Identification: 0xfbfa (64506)
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 (17)
Header checksum: 0xf3f9 [correct]
[Good: True]
[Bad: False]
Source: 192.168.137.1 (192.168.137.1)
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: 315
Checksum: 0xdaf7 [validation disabled]
[Good Checksum: False]
[Bad Checksum: False]
Bootstrap Protocol
Message type: Boot Reply (2)
Hardware type: Ethernet
Hardware address length: 6
Hops: 0
Transaction ID: 0xf6d7ec89
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: 192.168.137.199 (192.168.137.199)
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: 34:6f:24:6a:95:b3 (34:6f:24:6a:95:b3)
Client hardware address padding: 00000000000000000000
Server host name not given
Boot file name not given
Magic cookie: DHCP
Option: (t=53,l=1) DHCP Message Type = DHCP ACK
Option: (53) DHCP Message Type
Length: 1
Value: 05
Option: (t=54,l=4) DHCP Server Identifier = 192.168.137.1
Option: (54) DHCP Server Identifier
Length: 4
Value: c0a88901
Option: (t=1,l=4) Subnet Mask = 255.255.255.0
Option: (1) Subnet Mask
Length: 4
Value: ffffff00
Option: (t=3,l=4) Router = 192.168.137.1
Option: (3) Router
Length: 4
Value: c0a88901
Option: (t=6,l=4) Domain Name Server = 192.168.137.1
Option: (6) Domain Name Server
Length: 4
Value: c0a88901
Option: (t=58,l=4) Renewal Time Value = 5 minutes
Option: (58) Renewal Time Value
Length: 4
Value: 0000012c
Option: (t=59,l=4) Rebinding Time Value = 5 days, 6 hours
Option: (59) Rebinding Time Value
Length: 4
Value: 0006ebe0
Option: (t=51,l=4) IP Address Lease Time = 7 days
Option: (51) IP Address Lease Time
Length: 4
Value: 00093a80
Option: (t=46,l=1) NetBIOS over TCP/IP Node Type = M-node
Option: (46) NetBIOS over TCP/IP Node Type
Length: 1
Value: 04
Option: (t=81,l=3) Client Fully Qualified Domain Name
Option: (81) Client Fully Qualified Domain Name
Length: 3
Value: 030000
Flags: 0x03
0000 .... = Reserved flags: 0x00
.... 0... = Server DDNS: Some server updates
.... .0.. = Encoding: ASCII encoding
.... ..1. = Server overrides: Override
.... ...1 = Server: Server
A-RR result: 0
PTR-RR result: 0
Option: (t=15,l=11) Domain Name = "mshome.net"
Option: (15) Domain Name
Length: 11
Value: 6d73686f6d652e6e657400
End Option