Wireshark mailing list archives
receive packets in double
From: "Manu" <traqueur () club-internet fr>
Date: Thu, 1 Apr 2010 11:17:50 +0200
Hello
I'm running wireshark 1.2.6 on a DELL W2K3 SP2 server
I've to check communication between the server and a badge readers on the
network
When i'm asking the badgre reader his version (@v) i have two reply as you
see below.
I have this only on this server.
Is there strange thing with network adapter ?
Thanks
No. Time Source Destination Protocol
Info
1 0.000000 192.168.10.3 192.168.10.13 UDP
Source port: commtact-https Destination port: commtact-https
Frame 1 (45 bytes on wire, 45 bytes captured)
Arrival Time: Apr 1, 2010 11:10:05.844030000
[Time delta from previous captured frame: 0.000000000 seconds]
[Time delta from previous displayed frame: 0.000000000 seconds]
[Time since reference or first frame: 0.000000000 seconds]
Frame Number: 1
Frame Length: 45 bytes
Capture Length: 45 bytes
[Frame is marked: False]
[Protocols in frame: eth:ip:udp:data]
[Coloring Rule Name: ___tmp_color_filter___01]
[Coloring Rule String: (ip.addr eq 192.168.10.3 and ip.addr eq
192.168.10.13) and (udp.port eq 20003 and udp.port eq 20003)]
Ethernet II, Src: Dell_0e:d2:54 (a4:ba:db:0e:d2:54), Dst: JkMicros_c0:f8:fa
(00:90:c2:c0:f8:fa)
Destination: JkMicros_c0:f8:fa (00:90:c2:c0:f8:fa)
Source: Dell_0e:d2:54 (a4:ba:db:0e:d2:54)
Type: IP (0x0800)
Internet Protocol, Src: 192.168.10.3 (192.168.10.3), Dst: 192.168.10.13
(192.168.10.13)
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: 31
Identification: 0x388f (14479)
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: 0x0000 [incorrect, should be 0x6cde]
[Good: False]
[Bad : True]
[Expert Info (Error/Checksum): Bad checksum]
Source: 192.168.10.3 (192.168.10.3)
Destination: 192.168.10.13 (192.168.10.13)
User Datagram Protocol, Src Port: commtact-https (20003), Dst Port:
commtact-https (20003)
Source port: commtact-https (20003)
Destination port: commtact-https (20003)
Length: 11
Checksum: 0x8dba [validation disabled]
Data (3 bytes)
0000 40 76 00 @v.
No. Time Source Destination Protocol
Info
2 0.028758 192.168.10.13 192.168.10.3 UDP
Source port: commtact-https Destination port: commtact-https
Frame 2 (60 bytes on wire, 60 bytes captured)
Arrival Time: Apr 1, 2010 11:10:05.872788000
[Time delta from previous captured frame: 0.028758000 seconds]
[Time delta from previous displayed frame: 0.028758000 seconds]
[Time since reference or first frame: 0.028758000 seconds]
Frame Number: 2
Frame Length: 60 bytes
Capture Length: 60 bytes
[Frame is marked: False]
[Protocols in frame: eth:ip:udp:data]
[Coloring Rule Name: ___tmp_color_filter___01]
[Coloring Rule String: (ip.addr eq 192.168.10.3 and ip.addr eq
192.168.10.13) and (udp.port eq 20003 and udp.port eq 20003)]
Ethernet II, Src: JkMicros_c0:f8:fa (00:90:c2:c0:f8:fa), Dst: Dell_0e:d2:54
(a4:ba:db:0e:d2:54)
Destination: Dell_0e:d2:54 (a4:ba:db:0e:d2:54)
Source: JkMicros_c0:f8:fa (00:90:c2:c0:f8:fa)
Type: IP (0x0800)
Trailer: A8
Internet Protocol, Src: 192.168.10.13 (192.168.10.13), Dst: 192.168.10.3
(192.168.10.3)
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: 45
Identification: 0x08b7 (2231)
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: 0xdca8 [correct]
[Good: True]
[Bad : False]
Source: 192.168.10.13 (192.168.10.13)
Destination: 192.168.10.3 (192.168.10.3)
User Datagram Protocol, Src Port: commtact-https (20003), Dst Port:
commtact-https (20003)
Source port: commtact-https (20003)
Destination port: commtact-https (20003)
Length: 25
Checksum: 0xfe82 [validation disabled]
Data (17 bytes)
0000 76 38 35 32 2e 33 34 30 2e 30 30 30 30 2e 33 35 v852.340.0000.35
0010 00 .
No. Time Source Destination Protocol
Info
3 0.028765 192.168.10.13 192.168.10.3 UDP
Source port: commtact-https Destination port: commtact-https
Frame 3 (60 bytes on wire, 60 bytes captured)
Arrival Time: Apr 1, 2010 11:10:05.872795000
[Time delta from previous captured frame: 0.000007000 seconds]
[Time delta from previous displayed frame: 0.000007000 seconds]
[Time since reference or first frame: 0.028765000 seconds]
Frame Number: 3
Frame Length: 60 bytes
Capture Length: 60 bytes
[Frame is marked: False]
[Protocols in frame: eth:ip:udp:data]
[Coloring Rule Name: ___tmp_color_filter___01]
[Coloring Rule String: (ip.addr eq 192.168.10.3 and ip.addr eq
192.168.10.13) and (udp.port eq 20003 and udp.port eq 20003)]
Ethernet II, Src: JkMicros_c0:f8:fa (00:90:c2:c0:f8:fa), Dst: Dell_0e:d2:54
(a4:ba:db:0e:d2:54)
Destination: Dell_0e:d2:54 (a4:ba:db:0e:d2:54)
Source: JkMicros_c0:f8:fa (00:90:c2:c0:f8:fa)
Type: IP (0x0800)
Trailer: A8
Internet Protocol, Src: 192.168.10.13 (192.168.10.13), Dst: 192.168.10.3
(192.168.10.3)
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: 45
Identification: 0x08b7 (2231)
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: 0xdca8 [correct]
[Good: True]
[Bad : False]
Source: 192.168.10.13 (192.168.10.13)
Destination: 192.168.10.3 (192.168.10.3)
User Datagram Protocol, Src Port: commtact-https (20003), Dst Port:
commtact-https (20003)
Source port: commtact-https (20003)
Destination port: commtact-https (20003)
Length: 25
Checksum: 0xfe82 [validation disabled]
Data (17 bytes)
0000 76 38 35 32 2e 33 34 30 2e 30 30 30 30 2e 33 35 v852.340.0000.35
0010 00 .
Manu
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