tcpdump output error with [|icmp] and [|rsvp] outputs
Some of the lines produced in the output of tcpdump seem erroneous and include strings like [|icmp] or [|rsvp]. I want to know what is wrong with this.
I am passing a pcap file (from The CAIDA "DDoS Attack 2007" Dataset
) to tcpdump and reading its output through pipe in my Python code. The tcpdump command I use is as follows:
tcpdump ip -nn -tt --number -r ddostrace.20070804_141436.pcap 2>/dev/null
The python snippet for my application is
self.p = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
line = self.p.stdout.readline()
with "command" being the tcpdump command above.
The line including [|rsvp] appears in the following lines:
After packet number 2673638, with timestamp 1186262209.224956 and IP 41.157.94.182 > 71.126.222.64.
After packet number 9158660, with timestamp 1186262256.248770 and IP 41.157.94.182 > 71.126.222.64.
The [|icmp] string appears in another line that I have not registered yet, but could provide details if necessary.
I have also tried -l option, which made no difference.
networking python pipe tcpdump
asked Feb 6 at 7:55
H.AlzyH.Alzy
12
add a comment |
Some of the lines produced in the output of tcpdump seem erroneous and include strings like [|icmp] or [|rsvp]. I want to know what is wrong with this.
I am passing a pcap file (from The CAIDA "DDoS Attack 2007" Dataset
) to tcpdump and reading its output through pipe in my Python code. The tcpdump command I use is as follows:
tcpdump ip -nn -tt --number -r ddostrace.20070804_141436.pcap 2>/dev/null
The python snippet for my application is
self.p = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
line = self.p.stdout.readline()
with "command" being the tcpdump command above.
The line including [|rsvp] appears in the following lines:
After packet number 2673638, with timestamp 1186262209.224956 and IP 41.157.94.182 > 71.126.222.64.
After packet number 9158660, with timestamp 1186262256.248770 and IP 41.157.94.182 > 71.126.222.64.
The [|icmp] string appears in another line that I have not registered yet, but could provide details if necessary.
I have also tried -l option, which made no difference.
networking python pipe tcpdump
asked Feb 6 at 7:55
H.AlzyH.Alzy
12
add a comment |
Some of the lines produced in the output of tcpdump seem erroneous and include strings like [|icmp] or [|rsvp]. I want to know what is wrong with this.
I am passing a pcap file (from The CAIDA "DDoS Attack 2007" Dataset
) to tcpdump and reading its output through pipe in my Python code. The tcpdump command I use is as follows:
tcpdump ip -nn -tt --number -r ddostrace.20070804_141436.pcap 2>/dev/null
The python snippet for my application is
self.p = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
line = self.p.stdout.readline()
with "command" being the tcpdump command above.
The line including [|rsvp] appears in the following lines:
After packet number 2673638, with timestamp 1186262209.224956 and IP 41.157.94.182 > 71.126.222.64.
After packet number 9158660, with timestamp 1186262256.248770 and IP 41.157.94.182 > 71.126.222.64.
The [|icmp] string appears in another line that I have not registered yet, but could provide details if necessary.
I have also tried -l option, which made no difference.
networking python pipe tcpdump
asked Feb 6 at 7:55
H.AlzyH.Alzy
12
Some of the lines produced in the output of tcpdump seem erroneous and include strings like [|icmp] or [|rsvp]. I want to know what is wrong with this.
I am passing a pcap file (from The CAIDA "DDoS Attack 2007" Dataset
) to tcpdump and reading its output through pipe in my Python code. The tcpdump command I use is as follows:
tcpdump ip -nn -tt --number -r ddostrace.20070804_141436.pcap 2>/dev/null
The python snippet for my application is
self.p = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
line = self.p.stdout.readline()
with "command" being the tcpdump command above.
The line including [|rsvp] appears in the following lines:
After packet number 2673638, with timestamp 1186262209.224956 and IP 41.157.94.182 > 71.126.222.64.
After packet number 9158660, with timestamp 1186262256.248770 and IP 41.157.94.182 > 71.126.222.64.
The [|icmp] string appears in another line that I have not registered yet, but could provide details if necessary.
I have also tried -l option, which made no difference.
networking python pipe tcpdump
networking python pipe tcpdump
asked Feb 6 at 7:55
H.AlzyH.Alzy
12
asked Feb 6 at 7:55
H.AlzyH.Alzy
12
asked Feb 6 at 7:55
H.AlzyH.Alzy
12
asked Feb 6 at 7:55
H.AlzyH.Alzy
12
asked Feb 6 at 7:55
H.AlzyH.Alzy
12
12
add a comment |
add a comment |
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