Capture packets from destination IP in Linux

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Hi Guys,

I am new to the Linux system. I want to capture packets from destination IP. How can I do that?

Oct 4, 2020 in Linux Administration by akhtar
• 38,170 points
56 views

1 answer to this question.

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Hi@akhtar,

To capture packets from destination IP, say you want to capture packets for 50.116.66.139, then you can use the below command as shown below.

$ tcpdump -i eth0 dst 50.116.66.139
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
10:55:01.798591 IP 192.168.0.2.59896 > 50.116.66.139.http: Flags [.], ack 2480401451, win 318, options [nop,nop,TS val 7955710 ecr 804759402], length 0
10:55:05.527476 IP 192.168.0.2.59894 > 50.116.66.139.http: Flags [F.], seq 2521556029, ack 2164168606, win 245, options [nop,nop,TS val 7959439 ecr 804759284], length 0
10:55:05.626027 IP 192.168.0.2.59894 > 50.116.66.139.http: Flags [.], ack 2, win 245, options [nop,nop,TS val 7959537 ecr 804759787], length 0
answered Oct 4, 2020 by MD
• 95,060 points

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