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Session Report

Summary:
Test run at: 2021-09-02 14:12:36 GMT
Client Prefix (v4): 170.247.144.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 (170.247.144.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
170.247.144.x/24/3152651rewritten
170.247.144.x/24/3052651rewritten
170.247.144.x/24/2952651rewritten
170.247.144.x/24/2852651rewritten
170.247.144.x/24/2752651rewritten
170.247.144.x/24/2652651rewritten
170.247.144.x/24/2552651rewritten
170.247.144.x/24/2452651rewritten
170.247.145.x/24/2352651rewritten
170.247.146.x/24/2252651rewritten
170.247.148.x/24/21263166rewritten
170.247.152.x/24/20265698rewritten
170.247.128.x/24/19265527rewritten
170.247.176.x/24/1828561rewritten
170.247.208.x/24/17265229rewritten
170.247.16.x/24/1661732rewritten
170.246.144.x/24/15264069rewritten
170.245.144.x/24/1452712rewritten
170.243.144.x/24/13UNROUTEDrewritten
170.255.144.x/24/12213160rewritten
170.231.144.x/24/11265134rewritten
170.215.144.x/24/105650rewritten
170.183.144.x/24/9UNROUTEDrewritten
170.119.144.x/24/8UNROUTEDrewritten

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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