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Session Report

Summary:
Test run at: 2022-08-11 11:45:59 GMT
Client Prefix (v4): 82.51.186.x/24
Client AS (v4): 3269 (ASN-IBSNAZ)
IPv4 Probes: 60
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 (82.51.186.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
82.51.186.x/24/313269rewritten
82.51.186.x/24/303269rewritten
82.51.186.x/24/293269rewritten
82.51.186.x/24/283269rewritten
82.51.186.x/24/273269rewritten
82.51.186.x/24/263269rewritten
82.51.186.x/24/253269rewritten
82.51.186.x/24/243269rewritten
82.51.187.x/24/233269rewritten
82.51.184.x/24/223269rewritten
82.51.190.x/24/213269rewritten
82.51.178.x/24/203269rewritten
82.51.170.x/24/193269rewritten
82.51.154.x/24/183269rewritten
82.51.250.x/24/173269rewritten
82.51.58.x/24/163269rewritten
82.50.186.x/24/153269rewritten
82.49.186.x/24/143269rewritten
82.55.186.x/24/133269rewritten
82.59.186.x/24/123269rewritten
82.35.186.x/24/115089rewritten
82.19.186.x/24/105089rewritten
82.115.186.x/24/912445rewritten
82.179.186.x/24/831575rewritten

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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