nagios is not a protocol per se . its uses already well known protocols . it depends on what type of check you want to capture packets if the check is performed using snmp that filter snmp packets on wireshark if check uses nrpe , nsca then filter the IP and the port respectively regards . <div class="gmail_quote">On 6 October 2010 21:08, Geraldo Netto <<a href="mailto:geraldonetto@gmail.com">geraldonetto@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> hi! i'm Geraldo, an undergrad student from são paulo, brazil and i'd like to know if any of you have some experience using wireshark to capture nagios packets once i couldn't see any reference(supported protocols) to nagios protocol... btw, where can i find more information on nagios protocol? and sorry for crossposting wireshark and nagios lists... kind regards and best wishes, Geraldo Non dvcor, dvco => Sapere Aude São Paulo, Brasil, -3gmt site: <a href="http://exdev.sf.net/" target="_blank">http://exdev.sf.net/</a> ------------------------------------------------------------------------------ Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. <a href="http://p.sf.net/sfu/beautyoftheweb" target="_blank">http://p.sf.net/sfu/beautyoftheweb</a> _______________________________________________ Nagios-users mailing list <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null </blockquote></div>