SC_EROSPROBER(1) General Commands Manual SC_EROSPROBER(1)

sc_erosprober — scamper driver to periodically probe addresses and rotate output files.

sc_erosprober [-a addrfile] [-c command] [-I interval] [-l logfile] [-o outfile] [-O option] [-p port] [-R rotation] [-U unix-scamper] [-x unix-control]

The sc_erosprober utility provides the ability to connect to a running scamper(1) instance and use it to periodically probe a set of addresses at a defined interval, and periodically rotate the output file at a defined interval. The supported options to sc_erosprober are as follows:

addrfile
specifies the name of the input file which consists of a sequence of IP addresses to probe, one address per line.
command
specifies the command to use with each address. sc_erosprober supports the trace and ping commands, and their options, in scamper. scamper(1) documents the options available in trace and ping.
interval
specifies the probe interval, in seconds, between probing each address. sc_erosprober will spread the probing of the addresses across the interval. If there are 10 addresses to probe at an interval of 20 seconds, then sc_erosprober will issue a command every two seconds.
logfile
specifies the name of a file to log progress output from sc_erosprober generated at run time.
outfile
specifies the prefix of the name of the output file to be written. The output file will use the warts(5) format. sc_erosprober will create a sequence of files named using the prefix and a timestamp.
options
allows the behavior of sc_erosprober to be further tailored. The current choices for this option are:
  • do not shuffle the order of addresses before probing starts.
  • do not write to warts files, just do the probing.
port
specifies the port on the local host where scamper(1) is accepting control socket connections.
rotation
specifies the rotation interval, in seconds, between rotating output files.
unix-scamper
specifies the name of a unix domain socket where scamper(1) is accepting control socket connections. This socket is used by sc_erosprober to send probing commands to scamper(1)
unix-control
specifies the name of a unix domain socket where sc_erosprober is accepting control socket connections. This socket can be used by a local process to adjust the probing list at run time.

Given a set of IPv4 and IPv6 addresses contained in a file named addrs and a scamper process listening at sock configured to probe at 100 packets per second started as follows:

scamper -U scamper-sock -p 100

the following command will ping the addresses every two minutes using one packet, and create an output file every thirty seconds prefixed with foo:

sc_erosprober -U scamper-sock -a addrs -o foo -I 120 -R 30 -c 'ping -c 1'

The following command will traceroute towards the addresses every 15 minutes, creating an output file every minute, with an sc_erosprober control socket:

sc_erosprober -U scamper-sock -x erosprober-sock -a addrs -o foo -I 900 -R 60 -c 'trace'

To add an address to the probeset at runtime, using netcat, use:

nc -U erosprober-sock
+192.0.2.1

To remove an address from the probeset at runtime, using netcat, use:

nc -U erosprober-sock
-192.0.31.60

scamper(1), sc_wartsdump(1), sc_warts2text(1), sc_warts2json(1), warts(5)

sc_erosprober was written by Matthew Luckie.

September 8, 2019 Debian