Hello everyone, so I'm getting this tcpdump, and it looks like..quite a mess... Can anyone decipher this? I can tell that one IP is requesting DNS info? but I'm having trouble finding out what some of the fields actually mean..
I know the first set of numbers if the time stamp...the 2nd is the IP address..and the next is the destination IP...with the port number after the semicolon. What comes next the '243/2/7 is what confuses me... I know SOA is the start of authority but what does it all mean together? I have a huuuge flood of traffic with these type of output..Can some one break this down for me?
I have two net-card. one is 172.16.24.99(ENG) ,another is 172.16.25.99(ENG-B). Both masks is 255.255.255.0.
I will monitor data on the tcp port 8055 in ENG, How do I set option of tcpdump command (2 Replies)
I wrote a short BASH script to run tcpdump and save the output to a log file for when I'm away from my desk. The script runs fine normally, but fails to start in cron. Any ideas?
#!/bin/bash
today=`date +%Y%m%d`
tcpdump -i eth0 -s 1500 -w ${today}.cap &
exit (5 Replies)
hello, i have a lot of pcap files (tcpdump output) that i want to compare.
every tcpdump output has two file, server and client.
what i want to do is:
1. take timestamp, source address, destination address, and packet id from each file (server and client)
2. find the packets sent from... (0 Replies)
i would like to know about tcpdump
i would like to use tcpdump to get information about these
- Date
- time
- source hostname
- source mac address
- source ip address
- destination ip address
- see outbound only
then i use command like this
tcpdump -i le0 -n -q -tttt -e src net... (0 Replies)
i would like to know about tcpdump
i would like to use tcpdump to get information about these
- Date
- time
- source hostname
- source mac address
- source ip address
- destination ip address
- see outbound only
then i use command like this
tcpdump -i le0 -n -q -tttt -e src net... (2 Replies)
i am trying to write a script to parse some tcpdump output, in each line of the tcpdump output, I know for sure there are 3 keywords exist:
User{different usernamehere}
NAS_ipaddr{different ip here}
Calling_station{ip or dns name here}
But the positions for these 3 keywords in the... (4 Replies)
Hi,
I am trying to capture manually crafted IP packets, created using Scapy, to a pcap file that can later be replayed using tcpreplay.
When using wireshark, I can successfully capture these packets and view them in wireshark.
However, when using tcpdump, these packets are then shown in... (2 Replies)
Hi.
Need Help with TcpDump
Trying to sniff associatio-request with tcpdump but when i run this tcpdump -i eth0 wlan subtype assoc-req i get this error
can anyone help me with this error ? Thanks alot !!:) (1 Reply)
I've recently started learning to use TCPdump, and I find it pretty interesting. There's one thing I don't understand. When I tell it to capture packets on, say, the WiFi interface en1, it often captures packets sent or received by other hosts on the network. How can it do this? My... (3 Replies)