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Session Report

Summary:
Test run at: 2021-06-18 18:26:50 GMT
Client Prefix (v4): 168.0.17.x/24
Client AS (v4): 52651
IPv4 Probes: 66
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 (168.0.17.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
168.0.17.x/24/3152651rewritten
168.0.17.x/24/3052651rewritten
168.0.17.x/24/2952651rewritten
168.0.17.x/24/2852651rewritten
168.0.17.x/24/2752651rewritten
168.0.17.x/24/2652651rewritten
168.0.17.x/24/2552651rewritten
168.0.17.x/24/2452651rewritten
168.0.16.x/24/2352651rewritten
168.0.19.x/24/2252651rewritten
168.0.21.x/24/21265242rewritten
168.0.25.x/24/20265243rewritten
168.0.1.x/24/19265240rewritten
168.0.49.x/24/18265223rewritten
168.0.81.x/24/17265225rewritten
168.0.145.x/24/1652560rewritten
168.1.17.x/24/1536351rewritten
168.2.17.x/24/148rewritten
168.4.17.x/24/138rewritten
168.8.17.x/24/123480rewritten
168.16.17.x/24/113479rewritten
168.32.17.x/24/101761rewritten
168.64.17.x/24/9UNROUTEDrewritten
168.128.17.x/24/827435rewritten

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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