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Session Report

Summary:
Test run at: 2018-09-10 17:39:55 GMT
Client Prefix (v4): 201.216.238.x/24
Client AS (v4): 16814
IPv4 Probes: 124
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
Largest spoofable neighbor prefix length none

Meaning of result status in column:

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
201.216.238.x/24/3116814rewritten
201.216.238.x/24/3016814rewritten
201.216.238.x/24/2916814rewritten
201.216.238.x/24/2816814rewritten
201.216.238.x/24/2716814rewritten
201.216.238.x/24/2616814rewritten
201.216.238.x/24/2516814rewritten
201.216.238.x/24/2416814rewritten
201.216.239.x/24/2316814rewritten
201.216.236.x/24/2216814rewritten
201.216.234.x/24/2116814rewritten
201.216.230.x/24/2020321rewritten
201.216.254.x/24/1916814rewritten
201.216.206.x/24/1816814rewritten
201.216.174.x/24/1714754rewritten
201.216.110.x/24/16UNROUTEDrewritten
201.217.238.x/24/1528015rewritten
201.218.238.x/24/1418809rewritten
201.220.238.x/24/13UNROUTEDrewritten
201.208.238.x/24/128048rewritten
201.200.238.x/24/1111830rewritten
201.248.238.x/24/108048rewritten
201.152.238.x/24/9UNROUTEDrewritten
201.88.238.x/24/88167rewritten

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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