tldr/pages/common/scamper.md

scamper

Actively probes the Internet in order to analyze topology and performance. Includes some tools that start with sc_, for example sc_warts2text or sc_ttlexp. More information: https://www.caida.org/catalog/software/scamper/.

• Execute the standard option (traceroute) to a destination:

scamper -i {{192.0.2.1}}

• Execute two actions (ping and traceroute) on two different targets:

scamper -I "{{ping}} {{192.0.2.1}}" -I "{{trace}} {{192.0.2.2}}

• Ping several hosts with UDP, use a specific port number for the first ping and increase it for each subsequent ping:

scamper -c "{{ping}} -P {{UDP-dport}} -d {{33434}}" -i {{192.0.2.1}} -i {{192.0.2.2}}

• Use the Multipath Discovery Algorithm (MDA) to determine the presence of load-balanced paths to the destination and use ICMP echo packets to sample with a maximum of three attempts, write the result to a warts file:

scamper -O {{warts}} -o {{path/to/output.warts}} -I "{{tracelb}} -P {{ICMP-echo}} -q {{3}} {{192.0.2.1}}"

• Execute a Paris traceroute with ICMP to a destination and save the result in a compressed warts file:

scamper -O {{warts.gz}} -o {{path/to/output.warts}} -I "{{trace}} -P {{icmp-paris}} {{2001:db8:dead:beaf::4}}"

• Record all ICMP packets that arrive at a specific IP address and have a specific ICMP ID in a warts file:

scamper -O {{warts}} -o {{path/to/output.warts}} -I "sniff -S {{2001:db8:dead:beef::6}} icmp[icmpid] == {{101}}"