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Session Report

Summary:
Test run at: 2017-08-16 12:49:04 GMT
Client Prefix (v4): 190.30.116.x/24
Client AS (v4): 7303
IPv4 Probes: 120
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 (190.30.116.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
190.30.116.x/24/317303rewritten
190.30.116.x/24/307303rewritten
190.30.116.x/24/297303rewritten
190.30.116.x/24/287303rewritten
190.30.116.x/24/277303rewritten
190.30.116.x/24/267303rewritten
190.30.116.x/24/257303rewritten
190.30.116.x/24/247303rewritten
190.30.117.x/24/237303rewritten
190.30.118.x/24/227303rewritten
190.30.112.x/24/217303rewritten
190.30.124.x/24/207303rewritten
190.30.100.x/24/197303rewritten
190.30.84.x/24/187303rewritten
190.30.52.x/24/177303rewritten
190.30.244.x/24/167303rewritten
190.31.116.x/24/157303rewritten
190.28.116.x/24/14UNROUTEDrewritten
190.26.116.x/24/1319429rewritten
190.22.116.x/24/127418rewritten
190.14.116.x/24/11UNROUTEDrewritten
190.62.116.x/24/1014754rewritten
190.94.116.x/24/912066rewritten
190.158.116.x/24/810620rewritten

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 13 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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