VMware VCENTER APPLICATION DISCOVERY MANAGER 6.1.1 - RESPOSITORY User Manual download pdf (Page 54)

Application Discovery Manager Administration Guide

54 VMware, Inc.

Similartotcpdump,youcanusenlcapturetofilteranexistingcapturefileandtransformittoanew,filtered

file.Seeusagebelow.

Location

/home/nlayers/Seneca/tools/nlcapture.pl

Usage

Runningnlcaptureonthecommandlineyields:

nlcapture.pl tcpdump options [-R ethereal display filter string]

Forexample:

Tolistenoneth1andcaptureallHTTPandICMPpacketsintothefilebla.dump:

nlcapture.pl -i eth1 -R "http||icmp" -w myoutput.dump

Asexplainedearlier, nlcapturesupportsallcommontcpdumpparameterssuchas‐i.Additionally,it

supportsthe-Rparametertofilteronthenetworkprotocoloraccordingtothevalueofspecificprotocolfields.

Protocolnamesarewritteninlowercase.ThefollowingURLprovidesdetailsonthefiltersthatyoucanuse:

http://www.ethereal.com/docs/man‐pages/ethereal‐filter.4.html

Thefiltersofnlcaptureutilityaredifferentfromthetcpdumpfilters.Theyareeasiertouseandunderstand.

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VMware VCENTER APPLICATION DISCOVERY MANAGER 6.1.1 - RESPOSITORY User Manual Page 54