This is the command sc_speedtrap that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
sc_speedtrap — scamper driver to resolve aliases for a set of IPv6 interfaces.
SYNOPSIS
sc_speedtrap [-I] [-a addressfile] [-A aliasfile] [-l logfile] [-o outfile] [-p port]
[-s stop] [-S skipfile] [-U unix-socket]
sc_speedtrap [-d dump] [file ...]
DESCRIPTION
The sc_speedtrap utility provides the ability to connect to a running scamper(1) instance
and have resolve a set of IPv6 addresses for aliases using the "speedtrap" technique.
sc_speedtrap induces each address to send fragmented ICMP echo replies, with the goal of
obtaining an incrementing Identifier (ID) field in the fragmentation header. If two
addresses are aliases, they will return ICMP echo replies with a monotonically increasing
value in the ID field because the ID field is implemented as a counter shared amongst all
interfaces. sc_speedtrap implements a scalable algorithm to quickly determine which
addresses are aliases. For further information about the algorithm is found in the "see
also" section. The supported options to sc_speedtrap are as follows:
-a addressfile
specifies the name of the input file which consists of a sequence of IPv6 addresses
to resolve for aliases, one address per line.
-A aliasfile
specifies the name of an output file which will receive pairs of aliases, one
address-pair per line.
-d dump
specifies the number identifying an analysis task to conduct. Valid dump numbers
are 1-3. See the examples section.
-I specifies that the addressfile contains only interfaces known to send fragmentation
headers containing incrementing values.
-l logfile
specifies the name of a file to log output from sc_speedtrap generated at run time.
-o outfile
specifies the name of the output file to be written. The output file will use the
warts format.
-p port
specifies the port on the local host where scamper(1) is accepting control socket
connections.
-s stop
specifies the step at which sc_speedtrap should halt. The available steps are
"classify", "descend", "overlap", "descend2", "candidates", and "ally".
-S skipfile
specifies the name of an input file which contains known aliases that do not need to
be resolved, one address-pair per line.
-U unix-socket
specifies the name of a unix domain socket where scamper(1) is accepting control
socket connections.
EXAMPLES
Given a set of IPv6 addresses contained in a file named addressfile.txt and a scamper
process listening on port 31337 configured to probe at 30 packets per second started as
follows:
scamper -P 31337 -p 30
the following command will resolve the addresses for aliases, store the raw measurements in
outfile1.warts, and record the interface-pairs that are aliases in aliases.txt:
sc_speedtrap -p 31337 -a addressfile.txt -o outfile1.warts -A aliases.txt
The next example is useful when inferring aliases from multiple vantage points. Given the
output of aliases.txt from a previous measurement, the following will resolve the
addressfile for aliases, skipping those in aliases.txt, and appending the new aliases to
aliases.txt:
sc_speedtrap -p 31337 -a addressfile.txt -o outfile2.warts -A aliases.txt -S
aliases.txt
To obtain a transitive closure of routers from an input warts file:
sc_speedtrap -d 1 outfile1.warts
To obtain a list of the interfaces probed and their IPID behaviour:
sc_speedtrap -d 2 outfile1.warts
To obtain statistics of how many probes are sent in each stage, and how long the stage
takes:
sc_speedtrap -d 3 outfile1.warts
Use sc_speedtrap online using onworks.net services
