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Session Report

Summary:
Test run at: 2017-09-21 12:21:05 GMT
Client Prefix (v4): 196.217.132.x/24
Client AS (v4): 6713 (IAM-AS)
IPv4 Probes: 117
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 (196.217.132.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
196.217.132.x/24/316713rewritten
196.217.132.x/24/306713rewritten
196.217.132.x/24/296713rewritten
196.217.132.x/24/286713rewritten
196.217.132.x/24/276713rewritten
196.217.132.x/24/266713rewritten
196.217.132.x/24/256713rewritten
196.217.132.x/24/246713rewritten
196.217.133.x/24/236713rewritten
196.217.134.x/24/226713rewritten
196.217.128.x/24/216713rewritten
196.217.140.x/24/2036903rewritten
196.217.148.x/24/196713rewritten
196.217.164.x/24/1836903rewritten
196.217.196.x/24/1736903rewritten
196.217.4.x/24/166713rewritten
196.216.132.x/24/15327781rewritten
196.219.132.x/24/148452rewritten
196.221.132.x/24/1324835rewritten
196.209.132.x/24/123741rewritten
196.201.132.x/24/115713rewritten
196.249.132.x/24/102018rewritten
196.153.132.x/24/936935rewritten
196.89.132.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 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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