kuroro115
Hello everyone~
I have a question for a long time.
My internet through a remote OpenVPN,top is :
win7 --(langateway)---localcentos7.0----(openvpn)-----remotecentos7.0------Internet
Then I did the speed test with the same download link,localcentos has 3mb/s speed but only 400Kb/S on win7
I dont know why that has happened,Then I cut the packet, I don't know how to use it, who can help me.
On localcentos7.0
Frame 1299: 1405 bytes on wire (11240 bits), 1405 bytes captured (11240 bits) on interface 0
Interface id: 0 (tun0)
Encapsulation type: Raw IP (7)
Arrival Time: Dec 8, 2015 16:43:46.605137000 �й���ʱ��
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1449564226.605137000 seconds
[Time delta from previous captured frame: 0.001058000 seconds]
[Time delta from previous displayed frame: 0.001058000 seconds]
[Time since reference or first frame: 4.017716000 seconds]
Frame Number: 1299
Frame Length: 1405 bytes (11240 bits)
Capture Length: 1405 bytes (11240 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: raw:ip:tcp]
[Coloring Rule Name: HTTP]
[Coloring Rule String: http || tcp.port == 80 || http2]
Raw packet data
Internet Protocol Version 4, Src: 139.162.23.4, Dst: 192.168.99.2
0100 .... = Version: 4
.... 0101 = Header Length: 20 bytes
Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
0000 00.. = Differentiated Services Codepoint: Default (0)
.... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
Total Length: 1405
Identification: 0xf4eb (62699)
Flags: 0x02 (Don't Fragment)
0... .... = Reserved bit: Not set
.1.. .... = Don't fragment: Set
..0. .... = More fragments: Not set
Fragment offset: 0
Time to live: 62
Protocol: TCP (6)
Header checksum: 0x7c3e [validation disabled]
[Good: False]
[Bad: False]
Source: 139.162.23.4
Destination: 192.168.99.2
[Source GeoIP: Unknown]
[Destination GeoIP: Unknown]
Transmission Control Protocol, Src Port: 80 (80), Dst Port: 42383 (42383), Seq: 1, Ack: 148, Len: 1353
Source Port: 80
Destination Port: 42383
[Stream index: 8]
[TCP Segment Len: 1353]
Sequence number: 1 (relative sequence number)
[Next sequence number: 1354 (relative sequence number)]
Acknowledgment number: 148 (relative ack number)
Header Length: 32 bytes
Flags: 0x010 (ACK)
000. .... .... = Reserved: Not set
...0 .... .... = Nonce: Not set
.... 0... .... = Congestion Window Reduced (CWR): Not set
.... .0.. .... = ECN-Echo: Not set
.... ..0. .... = Urgent: Not set
.... ...1 .... = Acknowledgment: Set
.... .... 0... = Push: Not set
.... .... .0.. = Reset: Not set
.... .... ..0. = Syn: Not set
.... .... ...0 = Fin: Not set
[TCP Flags: *******A****]
Window size value: 235
[Calculated window size: 30080]
[Window size scaling factor: 128]
Checksum: 0x7345 [validation disabled]
[Good Checksum: False]
[Bad Checksum: False]
Urgent pointer: 0
Options: (12 bytes), No-Operation (NOP), No-Operation (NOP), Timestamps
No-Operation (NOP)
Type: 1
0... .... = Copy on fragmentation: No
.00. .... = Class: Control (0)
...0 0001 = Number: No-Operation (NOP) (1)
No-Operation (NOP)
Type: 1
0... .... = Copy on fragmentation: No
.00. .... = Class: Control (0)
...0 0001 = Number: No-Operation (NOP) (1)
Timestamps: TSval 1261990194, TSecr 2710510799
Kind: Time Stamp Option (8)
Length: 10
Timestamp value: 1261990194
Timestamp echo reply: 2710510799
[SEQ/ACK analysis]
[iRTT: 0.109157000 seconds]
[Bytes in flight: 1353]
TCP segment data (1353 bytes)
On win7
Frame 77: 1419 bytes on wire (11352 bits), 1419 bytes captured (11352 bits) on interface 0
Interface id: 0 (\Device\NPF_{80AB363A-0948-4D09-B581-DBA6F42BA5F7})
Encapsulation type: Ethernet (1)
Arrival Time: Dec 8, 2015 17:42:00.637186000 �й���ʱ��
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1449567720.637186000 seconds
[Time delta from previous captured frame: 0.000245000 seconds]
[Time delta from previous displayed frame: 0.000245000 seconds]
[Time since reference or first frame: 3.427936000 seconds]
Frame Number: 77
Frame Length: 1419 bytes (11352 bits)
Capture Length: 1419 bytes (11352 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: eth:ethertype:ip:tcp]
[Coloring Rule Name: HTTP]
[Coloring Rule String: http || tcp.port == 80 || http2]
Ethernet II, Src: Microsof_1a:be:03 (00:15:5d:1a:be:03), Dst: HewlettP_ce:9b:1d (00:24:81:ce:9b:1d)
Destination: HewlettP_ce:9b:1d (00:24:81:ce:9b:1d)
Address: HewlettP_ce:9b:1d (00:24:81:ce:9b:1d)
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
Source: Microsof_1a:be:03 (00:15:5d:1a:be:03)
Address: Microsof_1a:be:03 (00:15:5d:1a:be:03)
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
Type: IPv4 (0x0800)
Internet Protocol Version 4, Src: 139.162.23.4, Dst: 10.14.26.30
0100 .... = Version: 4
.... 0101 = Header Length: 20 bytes
Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
0000 00.. = Differentiated Services Codepoint: Default (0)
.... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
Total Length: 1405
Identification: 0x61cf (25039)
Flags: 0x02 (Don't Fragment)
0... .... = Reserved bit: Not set
.1.. .... = Don't fragment: Set
..0. .... = More fragments: Not set
Fragment offset: 0
Time to live: 61
Protocol: TCP (6)
Header checksum: 0x0fda [validation disabled]
[Good: False]
[Bad: False]
Source: 139.162.23.4
Destination: 10.14.26.30
[Source GeoIP: Unknown]
[Destination GeoIP: Unknown]
Transmission Control Protocol, Src Port: 80 (80), Dst Port: 52971 (52971), Seq: 1, Ack: 724, Len: 1365
Source Port: 80
Destination Port: 52971
[Stream index: 0]
[TCP Segment Len: 1365]
Sequence number: 1 (relative sequence number)
[Next sequence number: 1366 (relative sequence number)]
Acknowledgment number: 724 (relative ack number)
Header Length: 20 bytes
Flags: 0x010 (ACK)
000. .... .... = Reserved: Not set
...0 .... .... = Nonce: Not set
.... 0... .... = Congestion Window Reduced (CWR): Not set
.... .0.. .... = ECN-Echo: Not set
.... ..0. .... = Urgent: Not set
.... ...1 .... = Acknowledgment: Set
.... .... 0... = Push: Not set
.... .... .0.. = Reset: Not set
.... .... ..0. = Syn: Not set
.... .... ...0 = Fin: Not set
[TCP Flags: *******A****]
Window size value: 30366
[Calculated window size: 30366]
[Window size scaling factor: -2 (no window scaling used)]
Checksum: 0xba8e [validation disabled]
[Good Checksum: False]
[Bad Checksum: False]
Urgent pointer: 0
[SEQ/ACK analysis]
[iRTT: 0.109509000 seconds]
[Bytes in flight: 1365]
TCP segment data (1365 bytes)
