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2018-03-16 07:49:02 +0000 | commented answer | Does ICMP packet contain TCP header Great explanation. Thanks |
2018-03-16 07:48:47 +0000 | marked best answer | Does ICMP packet contain TCP header I refer to the above question ( number 140 of kindle book (prep guide for WCNA exam)). The answer sheet in the same book says it does not contain TCP header. But I see in my packet capture some ICMP reply packets do contain TCP header. Can someone please explain? THANKS |
2018-03-16 06:26:29 +0000 | asked a question | Does ICMP packet contain TCP header Does ICMP packet contain TCP header I refer to the above question ( number 140 of kindle book (prep guide for WCNA exam) |
2018-03-06 07:38:29 +0000 | edited question | More than 2 full TCP packets without ACK and large MTU More than 2 full TCP packets without ACK and large MTU Hi, Please refer to the attached pcapng file. It's an excerpt o |
2018-03-06 06:05:23 +0000 | commented question | More than 2 full TCP packets without ACK and large MTU THANKS Jim, I just now reduced the file size following your advice |
2018-03-06 06:03:55 +0000 | edited question | More than 2 full TCP packets without ACK and large MTU More than 2 full TCP packets without ACK and large MTU Hi, Please refer to the attached pcapng file. It's an excerpt o |
2018-03-06 04:51:39 +0000 | asked a question | More than 2 full TCP packets without ACK and large MTU More than 2 full TCP packets without ACK and large MTU Hi, Please refer to the attached pcapng file. It's 1 GB file. |
2018-03-06 04:36:36 +0000 | commented answer | Filtering out normal traffic Thanks Jaap for the reply. I was wondering if there is already some script or program which studies traffic from/to a de |
2018-03-05 12:43:20 +0000 | asked a question | Filtering out normal traffic Filtering out normal traffic Hi, Is there any simple way to filter out normal traffic? In my case when I watch sports |
2018-02-17 11:14:36 +0000 | commented answer | Resolution of Network address Hi Anders, I have checked my /etc/hosts file. But there is no such entry. Thanks |
2018-02-17 11:11:53 +0000 | asked a question | Seeking explanation on bytes count in 'Protocol hierarchy' Seeking explanation on bytes count in 'Protocol hierarchy' Please refer to the pcap file. I am seeking explanation on " |
2018-02-15 05:40:50 +0000 | marked best answer | Ack # of packet after retransmission The recipient does not receive the packet with the expected sequence number (S1), so it sends 3 Dup ACK packets. But while the recipient was sending the Dup Ack packets, the sender has sent 2 packets with S2 and S3 sequence numbers and data length L each. The sender sends Fast Retransmission packet with S1 sequence.What should be the Ack # in the immediate next packet from the recipient? Should it be (S3 + L) ? Thanks very much in advance |
2018-02-15 05:17:58 +0000 | marked best answer | Why did Sequence number reduce I am new to packet analysis and Wireshark. I need help in understanding. I will appreciate if someone please enlighten me on what is happening in captured file. Q. Please refer to packet 64 and 101. They belong to the same TCP stream. Why does Seq # in packet #101 reduce by 1 from packet # 64? |
2018-02-15 05:17:17 +0000 | marked best answer | Not understanding "Window scaling" graph Please refer to the attached pcap file. The window scaling from 205.234.218.129:80 -> 172.16.0.122:41834 shows that most of the time the recv window size is 60K. But the pack info tell different fact. For example refer to packet#99. The "Packet info" shows the window size is 14306. But the green line depicting Recv Win stays above 50000 (Byte). Why so? THANKS |
2018-02-15 05:16:37 +0000 | marked best answer | Sorting packets based on conversation Hi, I find it easier to have packets sorted based on conversation -- for analysis. Doing it manually with more than 30 conversations is difficult. Is there any way in Wireshark to do it in easier means? Thanks |
2018-02-15 05:15:48 +0000 | asked a question | Resolution of Network address Resolution of Network address I have a captured file. When I enable "Resolve Network Addresses" I can see the names in t |
2018-02-15 04:44:15 +0000 | marked best answer | Where are IP headers in Monitor mode capture? Hi, I set my lone network interface of Mac_air to Promiscous and Monitor mode at the same time. I could surf Internet while network being in the above mode. But the traffic captures show most packets had the following header hierarchy: Data -> IEEE 802.11 -> 802.11 radio info -> Radiotap header -> Frame. Where are IP and TCP headers gone? Regards |
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2018-02-12 11:13:00 +0000 | asked a question | Where are IP headers in Monitor mode capture? Where are IP headers in Monitor mode capture? Hi, I set my lone network interface of Mac_air to Promiscous and Monitor |
2018-02-04 20:31:34 +0000 | commented answer | Sorting packets based on conversation Great help to me. THANKS |