OSTU - Remote Capture Using rpcapd (by Tony Fortunato)

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Information about OSTU - Remote Capture Using rpcapd (by Tony Fortunato)
Technology

Published on February 26, 2009

Author: LoveMyTool

Source: slideshare.net

Description

Tony Fortunato is a Senior Network Specialist with experience in design, implementation, and troubleshooting of LAN/WAN/Wireless networks, desktops and servers since 1989. His background in financial networks includes design and implementation of trading floor networks. Tony has taught at local high schools, Colleges/Universities, Networld/Interop and many onsite private classroom settings to thousands of analysts.

Quickstart – Setting up Wireshark and rpcapd for remote capture Tony Fortunato, Sr Network Specialist The Technology Firm

Why use rpcapd? I use rpcapd for the following tasks; To capture packets remotely without requiring remote desktop, VNC or remote control software Capture data from client’s PC without the protocol analyzer getting in the way Why not redeploy old PC’s as remote capture tools for application baselines?

I use rpcapd for the following tasks;

To capture packets remotely without requiring remote desktop, VNC or remote control software

Capture data from client’s PC without the protocol analyzer getting in the way

Why not redeploy old PC’s as remote capture tools for application baselines?

rpcapd help screen C:Program FilesWinPcap>rpcapd –h USAGE: rpcapd [-b <address>] [-p <port>] [-6] [-l <host_list>] [-a <host,port>] [-n] [-v] [-d] [-s <file>] [-f <file>] -b <address>: the address to bind to (either numeric or literal). Default: it binds to all local IPv4 addresses -p <port>: the port to bind to. Default: it binds to port 2002 -4: use only IPv4 (default both IPv4 and IPv6 waiting sockets are used) -l <host_list>: a file that keeps the list of the hosts which are allowed to connect to this server (if more than one, list them one per line). We suggest to use literal names (instead of numeric ones) in order to avoid problems with different address families -n: permit NULL authentication (usually used with '-l') -a <host,port>: run in active mode when connecting to 'host' on port 'port' In case 'port' is omitted, the default port (2003) is used -v: run in active mode only (default: if '-a' is specified, it accepts passive connections as well -d: run in daemon mode (UNIX only) or as a service (Win32 only) Warning (Win32): this switch is provided automatically when the service is started from the control panel -s <file>: save the current configuration to file -f <file>: load the current configuration from file; all the switches specified from the command line are ignored -h: print this help screen

Remote PC – rpcapd setup Before you run rpcapd, you need the device name of the interface you want to capture from. Use tshark –D from the Wireshark program directory C:Program FilesWireshark>tshark -D 1. DeviceNPF_GenericDialupAdapter (Adapter for generic dialup and VPN capture) 2. DeviceNPF_{7A1481E2-1AA3-4981-AB67-755C43F4B232} (Intel(R) PRO/100 VE Network Connection) Go to your c:program fileswinpcap directory and run rpcapd with the –n option and –n with the local ip address C:Program FilesWinPcap>rpcapd -b 10.44.10.103 -n Press CTRL + C to stop the server...

Before you run rpcapd, you need the device name of the interface you want to capture from. Use tshark –D from the Wireshark program directory

C:Program FilesWireshark>tshark -D

1. DeviceNPF_GenericDialupAdapter (Adapter for generic dialup and VPN capture)

2. DeviceNPF_{7A1481E2-1AA3-4981-AB67-755C43F4B232} (Intel(R) PRO/100 VE Network Connection)

Go to your c:program fileswinpcap directory and run rpcapd with the –n option and –n with the local ip address

C:Program FilesWinPcap>rpcapd -b 10.44.10.103 -n

Press CTRL + C to stop the server...

Local PC – rpcap command from Wireshark From Wireshark enter the following information Remote PC IP address and interface information If you only have 1 interface card on the remote PC, exclude your IP address. Otherwise you will capture all the rpcap traffic

From Wireshark enter the following information

That’s it Run an application from the remote PC and you should see some traffic This is the remote interface

Run an application from the remote PC and you should see some traffic

rpcap Training - QuickStart Tony Fortunato, Sr Network Specialist The Technology Firm Thank you

For additional educational videos on Open Source Network Tools, please click on the following … http://www.lovemytool.com/blog/ostu.html LoveMyTool.com – Community for Network Tools

For additional educational videos on Open Source Network Tools, please click on the following …

http://www.lovemytool.com/blog/ostu.html

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