["Maynard, Chris" <Christopher.Maynard@xxxxxxx>]

Do you have to use tcpdump?  If you have tshark available, then you can capture on both interfaces at the same time without the need to merge separate capture files at all.  For example:

 

tshark -i eth0 -i eth1 –w eth0_eth1.pcapng

 

Refer to the tshark[1] (or dumpcap[2]) man pages for more information.

- Chris

[1]: https://www.wireshark.org/docs/man-pages/tshark.html

[2]: https://www.wireshark.org/docs/man-pages/dumpcap.html

 

 

From: Wireshark-users [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of luke devon via Wireshark-users
Sent: Saturday, May 12, 2018 8:17 AM
To: Community support list for Wireshark <wireshark-users@xxxxxxxxxxxxx>
Cc: luke devon <luke_devon@xxxxxxxxx>
Subject: Re: [Wireshark-users] merge pcap from two interfaces

 

Hi Abhik, 

 

 

Thank you for the reply.

 

The reason is, the server got few more interfaces too. I want to capture specifically etho and etho1, Not other interfaces. That's why I can't use "-i any".

 

Regards

Luke

 

On Saturday, 12 May 2018, 6:38:55 PM GMT+8, Abhik Sarkar <sarkar.abhik@xxxxxxxxx> wrote:

 

 

Hi Luke,

You could use mergecap (https://www.wireshark.org/docs/wsug_html_chunked/AppToolsmergecap.html).

Alternately, run tcpdump with "-i any" to have the capture for all interfaces in the same file (unless you have good reason to keep them separate, of course).

Regards,

Abhik

 

On 12 May 2018 at 14:14, luke devon via Wireshark-users <wireshark-users@xxxxxxxxxxxxx> wrote:

Hi 

 

I have a server which has multiple ethernet interfaces and carrying network traffic to the system. every 15sec, roll out to the next tcpdump. Likewise, it will generate 4 - pcap file in a minute. 

 

eth0 will generate 4 pcap files

eth1 will generate 4 pap files.

 

I wanna merge respective etho and eth1 files by matching with the time stamp.

 

can it be done? Please help.

 

Thank you

Luke 

 

 

 

 

 

 

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