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Session Report

Summary:
Test run at: 2017-02-26 21:47:46 GMT
Client Prefix (v4): 72.130.64.x/24
Client AS (v4): 20001 (TWC-20001-PACWEST)
IPv4 Probes: 91
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length none
Spoof status key
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.
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. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

  

  

IPv4 Adjacent Netblock Testing:

Your host (72.130.64.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
72.130.64.x/24/3120001natblock
72.130.64.x/24/3020001natblock
72.130.64.x/24/2920001natblock
72.130.64.x/24/2820001natblock
72.130.64.x/24/2720001natblock
72.130.64.x/24/2620001natblock
72.130.64.x/24/2520001natblock
72.130.64.x/24/2420001natblock
72.130.65.x/24/2320001natblock
72.130.66.x/24/2220001natblock
72.130.68.x/24/2120001natblock
72.130.72.x/24/2020001natblock
72.130.80.x/24/1920001natblock
72.130.96.x/24/1820001natblock
72.130.0.x/24/1720001natblock
72.130.192.x/24/1620001natblock
72.131.64.x/24/1510796natblock
72.128.64.x/24/1410796natblock
72.134.64.x/24/1320001natblock
72.138.64.x/24/12812natblock
72.146.64.x/24/116389natblock
72.162.64.x/24/10UNROUTEDnatblock
72.194.64.x/24/922773natblock
72.2.64.x/24/819009natblock

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 Outbound 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.
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