tcpdump command

[Andy Green]

Kaushal Shriyan wrote:
> Hi
> 
> I have to capture network traffic between an appliance and content server
> using tcpdump command and then dump to a file and read and decode it using
> wireshark
> 
> How do i proceed
> 
> I have used tcpdump -i eth0 -s 1500 -w dump src host 192.168.0.1 and dst
> host www.example.com
> 
> when i read the dump capture file using wireshark i could only see packets
> being sent from src host to destination host, I could not see any packets
> being sent from destination host to src host.

You specified what you wanted too tightly... ONLY packets coming FROM
('src host') 192.168.0.1 and going TO ('dst host') www.example.com.

Just using

-i eth0 -s 1500 -w dump host www.example.com

will get you what you want: see

man tcpdump

-Andy