Skip to Content
[CAIDA - Center for Applied Internet Data Analysis logo]
Center for Applied Internet Data Analysis
Session Report

Test run at: 2017-10-16 19:34:50 GMT
Client Prefix (v4): 185.41.141.x/24
Client AS (v4): 174 (COGENT-174)
IPv4 Probes: 105

Egress spoofing summary
Address type IPv4
Private unknown
Routable unknown
Largest spoofable neighbor prefix none


  • Your host is behind a Network Address Translation (NAT) router or firewall which rewrites the source addresses of the test traffic. To test your provider's network further, you must remove the NAT/firewall/router and connect directly.

    IPv4 AS Route:

    This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run.

    IPv4 Egress Filtering Depth:

    The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
    The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
    We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
      Last Modified: