Wireshark-users: Re: [Wireshark-users] Capture start time

From: Jaap Keuter <jaap.keuter@xxxxxxxxx>
Date: Wed, 24 Mar 2010 00:09:36 +0100

Maybe file creation time can help you here.
What does pcap-ng has to offer in this respect?


Send from my iPhone

On 23 mrt 2010, at 19:11, Guy Harris <guy@xxxxxxxxxxxx> wrote:

On Mar 23, 2010, at 10:30 AM, specop@xxxxxx wrote:

As far as I understood it, Wireshark sets the capture start time to the moment the first packet arrives, right? So if I start the capture at time t and the first packet arrives at t+5s, the capture's start time will be initialized at t+5 (time 0.000s). Correct?

I'm not sure Wireshark reports any notion of a capture start time. If you display packet time stamps as "seconds since first packet", then, obviously, the first packet will have a time stamp of 0 seconds.

Is there a way to determine the real capture start time (not the arrival of the first packet)? E.g. from a pcap file.

It's definitely *not* possible with a pcap file, as a pcap file doesn't store the time a capture started - it only stores the time stamps of packets in the file.

Sent via: Wireshark-users mailing list <wireshark-users@xxxxxxxxxxxxx >
Archives:    http://www.wireshark.org/lists/wireshark-users
Unsubscribe: https://wireshark.org/mailman/options/wireshark-users