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Raddle network emulator ======================= Raddle is a network emulation framework. It is particularly useful when testing network management systems or teaching people to use them. The bulk of Raddle is concerned with emulating SNMP agents. Their behaviour can be controlled by template files (e.g. using data dumped from real SNMP devices). A configuration library is provided to augment the static data with new interface definitions etc at runtime. Raddle SNMP devices support GET and SET operations on any MIB item defined in the template file. They also support random or constant traffic generation on any Counter in the MIB. Get Raddle ========== Raddle is obtainable from the Sourceforge project page: http://sourceforge.net/projects/raddle/ Technology ========== Raddle is based on these packages: * Honeyd and Arpd for IP network emulation. * net-snmp using the Perl module for SNMP agent emulation. * Raddle is implemented in Perl, which is also the configuration language. The initial implementation has been tested on Linux. Raddle should work on any platform supported by Honeyd and net-snmp. This includes: Linux, *BSD, Solaris Caveats ======= Raddle is not intended to provide a complete emulation of any particular device. In particular, although the current version can emulate traffic, it does not attempt to make all interfaces consistent or even to count the real packets passing through it. Due to the way Honeyd connects to the ethernet interface, it is not possible to run Raddle in ethernet mode on a machine that has IP Forwarding enabled. Also, in this mode Raddle cannot respond to packets originating on the machine that it is running on. Running Honeyd and Raddle on the loopback interface avoids both problems, though it can expose issues with missing checksums on Linux loopbacks (the raddle-specific version of Honeyd has a patch to fix this). Watch out for the effects of firewall filters. In ethernet mode, packets pass *into* Raddle directly from the ethernet interface, so inbound filters have no effect. However, packets generated by Raddle do pass through the outbound filters of firewall systems like ipchains and iptables. If you run Raddle on a machine that has its own SNMP daemon, you may need to adjust the configuration of that daemon so that it does not listen on the loopback or 'all-IPs' addresses. If you do not do this, then the base daemon will answer in place of all Raddle-emulated devices. Licence ======= Raddle is free open-source software. It is made available under an MIT-style licence. See the file LICENCE for full details. Installation ============ See the file INSTALLATION Documentation ============= The API documentation is embedded in the .pm files as POD. It should be extracted and installed for you by the installation process, but if you want to view it before installation, do this: cd Raddle pod2text SNMPEmulator.pm pod2text TicksSince.pm pod2text TrafficGen.pm Examples ======== There are some examples of Raddle setups in the examples/* directories. Future Work =========== Consider ways to link the Raddle configuration with the Honeyd configuration more easily. Refactor the code to make it easier to build higher-level devices. Provide a library of higher-level devices (routers, hosts, etc) to make it easier to build emulations. Consider adding a configuration/control GUI. Tackle scaling issues related to net-snmp. Support 64-bit counters and the ifXTable ======================================================================== Andrew Findlay Skills 1st Ltd June 2003 Updated November 2009 andrew.findlay@skills-1st.co.uk http://www.andrew.findlay.org/ $Id: README,v 1.7 2012/06/07 17:16:06 afindlay Exp $ ========================================================================
Source: README, updated 2012-06-11

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