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Session Report

Summary:
Test run at: 2017-09-19 14:49:44 GMT
Client Prefix (v4): 190.63.150.x/24
Client AS (v4): 23487
IPv4 Probes: 116
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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.

Warnings:

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 (190.63.150.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
190.63.150.x/24/3123487rewritten
190.63.150.x/24/3023487rewritten
190.63.150.x/24/2923487rewritten
190.63.150.x/24/2823487rewritten
190.63.150.x/24/2723487rewritten
190.63.150.x/24/2623487rewritten
190.63.150.x/24/2523487rewritten
190.63.150.x/24/2423487rewritten
190.63.151.x/24/2323487rewritten
190.63.148.x/24/2223487rewritten
190.63.146.x/24/2123487rewritten
190.63.158.x/24/2023487rewritten
190.63.134.x/24/1923487rewritten
190.63.182.x/24/1823487rewritten
190.63.214.x/24/1723487rewritten
190.63.22.x/24/1623487rewritten
190.62.150.x/24/1514754rewritten
190.61.150.x/24/1418747rewritten
190.59.150.x/24/135639rewritten
190.55.150.x/24/1227747rewritten
190.47.150.x/24/1122047rewritten
190.31.150.x/24/107303rewritten
190.127.150.x/24/9UNROUTEDrewritten
190.191.150.x/24/810481rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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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