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Session Report

Summary:
Test run at: 2017-06-21 00:06:25 GMT
Client Prefix (v4): 78.29.189.x/24
Client AS (v4): 42580 (CABOTVA)
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 (78.29.189.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
78.29.189.x/24/3142580rewritten
78.29.189.x/24/3042580rewritten
78.29.189.x/24/2942580rewritten
78.29.189.x/24/2842580rewritten
78.29.189.x/24/2742580rewritten
78.29.189.x/24/2642580rewritten
78.29.189.x/24/2542580rewritten
78.29.189.x/24/2442580rewritten
78.29.188.x/24/2342580rewritten
78.29.191.x/24/2242580rewritten
78.29.185.x/24/2142580rewritten
78.29.181.x/24/2042580rewritten
78.29.173.x/24/1942580rewritten
78.29.157.x/24/1842580rewritten
78.29.253.x/24/1721502rewritten
78.29.61.x/24/168369rewritten
78.28.189.x/24/1543752rewritten
78.31.189.x/24/1462179rewritten
78.25.189.x/24/1339493rewritten
78.21.189.x/24/126848rewritten
78.13.189.x/24/118612rewritten
78.61.189.x/24/108764rewritten
78.93.189.x/24/925233rewritten
78.157.189.x/24/843709rewritten

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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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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