Wireshark · Wireshark-users: Re: [Wireshark-users] filter application layer frames during capture kernel (SIP)

[Guy Harris <guy@xxxxxxxxxxxx>]

On Jan 23, 2018, at 5:31 AM, Dignam, Mark <Mark.Dignam@xxxxxxxx> wrote:

> Yeah in the filter option just add in sip contains XXXXXX (where XXXXXX is the MSISDN or part there of)

That's a *display* filter, so it won't filter out packets during the capture process.

Filtering specific SIP packets at capture time is much harder; see the ask.wireshark.com answer to which Anders pointed.