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Session Report

Summary:
Test run at: 2017-05-25 15:21:56 GMT
Client Prefix (v4): 219.89.15.x/24
Client AS (v4): 4771 (SPARKNZ)
IPv4 Probes: 118
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 (219.89.15.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
219.89.15.x/24/314771rewritten
219.89.15.x/24/304771rewritten
219.89.15.x/24/294771rewritten
219.89.15.x/24/284771rewritten
219.89.15.x/24/274771rewritten
219.89.15.x/24/264771rewritten
219.89.15.x/24/254771rewritten
219.89.15.x/24/244771rewritten
219.89.14.x/24/234771rewritten
219.89.13.x/24/224771rewritten
219.89.11.x/24/214771rewritten
219.89.7.x/24/204771rewritten
219.89.31.x/24/194771rewritten
219.89.47.x/24/184771rewritten
219.89.79.x/24/17UNROUTEDrewritten
219.89.143.x/24/164771rewritten
219.88.15.x/24/15UNROUTEDrewritten
219.91.15.x/24/147482rewritten
219.93.15.x/24/134788rewritten
219.81.15.x/24/129924rewritten
219.73.15.x/24/114760rewritten
219.121.15.x/24/104685rewritten
219.25.15.x/24/917676rewritten
219.217.15.x/24/84538rewritten

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 able to spoof routable, non-adjacent source addresses through the first 1 IP hop(s).
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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