Capturing Internal Traffic with Virtual Loopback & Wireshark on XP
Create Loopback Interface on Windows XP
- Select “Start”->“Settings”->”Control Panel”
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Networking
Connect PC to Cisco Switch or Router
To connect a PC which has two network interfaces (one Ethernet and another wireless) to a LAN, you will want to create a default route to the wireless interface, assuming you are using the wiressless network to get to the Internet (WAN). Here is a link on how to set up a default route on a Windows machine:
Here is the command to add a default route(assume 192.168.201.1 is your WAN gateway)
route add 0.0.0.0 mask 0.0.0.0 192.168.201.1
You will also need to add a static route so that all traffic going to LAN are directed to the LAN gateway, instead of to WAN. Here is how:
route add 10.100.0.0 mask 255.255.0.0 10.100.0.1
Useful links:
http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/route.mspx?mfr=true
Install CBQoS(Class-Based Quality-of-Service) Parser and Logger
This article shows one how to set up a PC to run CBQoS Parser and Logger. It covers setting up Net-SNMP, mySQL, ActivePerl, and Perl-based CBQoS Parser and Logger.
CBQoS (Class-Based Quality-of-Service) Parser and Logger
CBQoS Parser and Logger is a Perl-based solution that parses CBQoS MIB query result and allow users to log CBQoS information.
CBQoS, Cisco Class-Based Quality-of-Service, can help analyze the pre-policy, post-policy and the drop within each class of traffic on your network and help network administrators make more informed QoS policy decisions. In addition, CBQoS can also provide queuing statistics on each class of traffic.
There are two main parts to Perl-Based CBQoS Logger: parser and recorder. The parser parses the CiscoQosBasedMIB and obtains information of policy maps applied to each interface, as well as that of the class maps within each policy map. Specifically, the parser obtains the various indices (such as policy indices, object indices, and configuration indices) required to construct the SNMP OID used by the recorder. WIth the SNMP OIDs, the recorder makes the SNMP request to the device and records the result in mySQL database as well as in Excel files. This tool can easily be extended to poll all statistics stored in CiscoQosBasedMIB, but currently it only supports polling the cbQosREDRandomDropByte, which is described in the MIB:
SNMP Intro
What is SNMP?
SNMP stands for Simple Network Management Protocol. It is used in network management systems to monitor network devices. It is part of Internet Protocol (IP) software suite.
Using SNMP, one can monitor and control a network device. Moreover, one can receive notification from a network device. A SNMP-managed system consists of three components: SNMP agents, Managed Devices, and Network Management Systems. A SNMP agent is a software process that manages network information on a Managed Device. A Managed Device is also called a SNMP-enabled device; routers, switches, PC, lab tops, or even smart phones are all examples of Managed Devices. A Network Management System is a computer that polls from Managed Devices and organizes the data in either textual or visual form.
Set up Net-SNMP on Windows
This article shows you how to turn your Windows box into an SNMP-enabled host, using Net-SNMP. Continue Reading »
Demo Video
This is the video recording of the partial demo I did for my Quality of Service (QoS) Flex-Java application.
Continue Reading »
Port QoSExplorer from Perl to Java
I want to port my QoSExplorer from Perl to Java. And this blog entry is an effort to document the lessons learned during the process. (NOTE: This is not a complete and clear article so I do apologize if it’s confusing. It’s posted mainly for my team members but I am in the process of add a Perl-Java series in this blog, so please check back.)
Build an existing J2EE project on Windows XP SP2
I need to set up my Windows laptop to build an existing J2EE project, using maven. This J2EE project uses technology including Hibernate, maven, ANDROMDA, mySQL, JBoss, Design Pattern, and many other J2EE technologies. Continue Reading »
Designing an Installer for Cisco Class-Based MIB Explorer
I would like to create an installer using NSIS for my Cisco Class-Based MIB Explorer. Continue Reading »
