10 More Discussions You Might Find Interesting
1. IP Networking
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)
Discussion started by: Ultrix
3 Replies
2. Cybersecurity
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..
19:44:50.707637 IP 66.81.1.252.53 > 64.147.113.139.28638: 52313... (4 Replies)
Discussion started by: Lost in Cyberia
4 Replies
3. Debian
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)
Discussion started by: SoulZB
1 Replies
4. IP Networking
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)
Discussion started by: yotamhc
2 Replies
5. Shell Programming and Scripting
I'm new to the Unix/Linux world. I have taken classes and played with a few simple scripts but never had a real world application. Here is my problem.
What I need to do is every 15min between 8am and 5pm, run
tcpdump -s 2000 -w flowroute-0000.pcap
where the "0000" is the current time.
... (4 Replies)
Discussion started by: Nasasdge
4 Replies
6. IP Networking
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)
Discussion started by: chamnanpol
2 Replies
7. Cybersecurity
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)
Discussion started by: chamnanpol
0 Replies
8. Shell Programming and Scripting
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)
Discussion started by: paulzeromi
5 Replies
9. UNIX for Dummies Questions & Answers
does anybody know what the -d -dd and -ddd options are used for ?
thanks (2 Replies)
Discussion started by: ant04
2 Replies
10. Programming
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)
Discussion started by: chenhao_no1
2 Replies