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Session Report

Summary:
Test run at: 2017-04-15 12:45:07 GMT
Client Prefix (v4): 85.99.254.x/24
Client AS (v4): 9121 (TTNet)
IPv4 Probes: 90
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 (85.99.254.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
85.99.254.x/24/319121rewritten
85.99.254.x/24/309121rewritten
85.99.254.x/24/299121rewritten
85.99.254.x/24/289121rewritten
85.99.254.x/24/279121rewritten
85.99.254.x/24/269121rewritten
85.99.254.x/24/259121rewritten
85.99.254.x/24/249121rewritten
85.99.255.x/24/239121rewritten
85.99.252.x/24/229121rewritten
85.99.250.x/24/219121rewritten
85.99.246.x/24/209121rewritten
85.99.238.x/24/199121rewritten
85.99.222.x/24/189121rewritten
85.99.190.x/24/179121rewritten
85.99.126.x/24/169121rewritten
85.98.254.x/24/159121rewritten
85.97.254.x/24/149121rewritten
85.103.254.x/24/139121rewritten
85.107.254.x/24/129121rewritten
85.115.254.x/24/1116345rewritten
85.67.254.x/24/1012301rewritten
85.35.254.x/24/93269rewritten
85.227.254.x/24/82119rewritten

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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