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Center for Applied Internet Data Analysis
Session Report

Test run at: 2017-08-31 06:42:49 GMT
Client Prefix (v4): 94.199.46.x/24
Client AS (v4): 48298 (GOVCZ)
IPv4 Probes: 132

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

Warnings:

  • 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 Adjacent Netblock Testing:

    Your host (94.199.46.x/24) can spoof 0 neighboring addresses


    Spoofed IP (anon)Prefix
    Length
    ASN of
    Spoofed IP
    Received
    94.199.46.x/24/3148298natblock
    94.199.46.x/24/3048298natblock
    94.199.46.x/24/2948298natblock
    94.199.46.x/24/2848298natblock
    94.199.46.x/24/2748298natblock
    94.199.46.x/24/2648298natblock
    94.199.46.x/24/2548298natblock
    94.199.46.x/24/2448298natblock
    94.199.47.x/24/2348298natblock
    94.199.44.x/24/2248298natblock
    94.199.42.x/24/2148298natblock
    94.199.38.x/24/2048319natblock
    94.199.62.x/24/1948403natblock
    94.199.14.x/24/1848291natblock
    94.199.110.x/24/178595natblock
    94.199.174.x/24/1648362natblock
    94.198.46.x/24/15UNROUTEDnatblock
    94.197.46.x/24/1460339natblock
    94.195.46.x/24/135607natblock
    94.207.46.x/24/1215802natblock
    94.215.46.x/24/119143natblock
    94.231.46.x/24/1039049natblock
    94.135.46.x/24/98881natblock
    94.71.46.x/24/86799natblock

    Meaning of status in Received column:

    natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

    IPv4 Egress Filtering Depth:

    The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
    Summary:
    The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
    Feedback:
    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: