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Session Report

Summary:
Test run at: 2019-06-25 00:38:18 GMT
Client Prefix (v4): 177.92.139.x/24
Client AS (v4): 263124
IPv4 Probes: 93
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
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 (177.92.139.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.92.139.x/24/31263124rewritten
177.92.139.x/24/30263124rewritten
177.92.139.x/24/29263124rewritten
177.92.139.x/24/28263124rewritten
177.92.139.x/24/27263124rewritten
177.92.139.x/24/26263124rewritten
177.92.139.x/24/25263124rewritten
177.92.139.x/24/24263124rewritten
177.92.138.x/24/23263124rewritten
177.92.137.x/24/22263124rewritten
177.92.143.x/24/21263124rewritten
177.92.131.x/24/20263108rewritten
177.92.155.x/24/19263125rewritten
177.92.171.x/24/18263107rewritten
177.92.203.x/24/17262729rewritten
177.92.11.x/24/1614868rewritten
177.93.139.x/24/1528366rewritten
177.94.139.x/24/1427699rewritten
177.88.139.x/24/13UNROUTEDrewritten
177.84.139.x/24/12262591rewritten
177.76.139.x/24/1126599rewritten
177.124.139.x/24/10262324rewritten
177.28.139.x/24/926615rewritten
177.220.139.x/24/814868rewritten

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 10 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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