Wireshark-dev: Re: [Wireshark-dev] filter expression required
From: Joshua Wright <jwright@xxxxxxxxxxx>
Date: Mon, 02 Jul 2007 09:03:52 -0400
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Amit Paliwal wrote:
> I am not using tshark, i am using wireshark........
> 
> is not it safe in the scenario i explained

I wouldn't use a Wireshark display filter in a packet capture when the
requirement was such that I couldn't afford dropped packets.

You could use dumpcap which comes with recent Wireshark distributions
instead:

dumpcap -i \Device\NPF_{52EFAA93-34C5-4F7E-80AE-638A48E3F1BD} -f "udp
and port 137"

The probability of dropped packets is based on the amount of traffic you
are capturing, the resources of your OS and the amount of processes
competing for system resources.  If Wireshark works OK for you in
testing, then go with it! :)

- -Josh
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