Solved

Invalid capture filter error message in wireshark

Posted on 2010-11-10
2
1,610 Views
Last Modified: 2012-05-10
Matteo I'm having the same problem, but when I try to use the filter smtp.rsp.parameter contains "Authentication Unsuccessful" in wireshark I just get an error message that says Invalid Capture filter. what to do?

Please see attached image.
invalid-capture-filter.jpg
0
Comment
Question by:bobox00
2 Comments
 
LVL 10

Accepted Solution

by:
yasserd earned 500 total points
ID: 34108678
This is a display filter NOT a capture filter. That means AFTER capturing the data you can use this filter to display only what you wanted.

I don't think that you can use a capture filter to do exactly what you want but it is possible to reduce the number of captured packets using specific capture filters (like capturing only tcp on port 25).

If you're using winPcap engine, you'll find filtering syntax here: http://www.winpcap.org/docs/docs_412/html/group__language.html
0
 

Author Closing Comment

by:bobox00
ID: 34132281
Thanks!
0

Featured Post

The Eight Noble Truths of Backup and Recovery

How can IT departments tackle the challenges of a Big Data world? This white paper provides a roadmap to success and helps companies ensure that all their data is safe and secure, no matter if it resides on-premise with physical or virtual machines or in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

February 24, 2017 — On February 23, Travis Ormandy, a vulnerability researcher at Google, reported on Twitter (https://twitter.com/taviso/status/834900838837411840) that massive stores of data have been leaked by CloudFlare, a company that provide…
The related questions "How do I recover the passwords for my Q-See DVR" and "How can I reset my Q-See DVR to eliminate a password" are seen several times a week.  Here we discuss the grim reality of the situation.
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

840 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question