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Session Report

Summary:
Test run at: 2017-09-08 15:01:44 GMT
Client Prefix (v4): 186.4.14.x/24
Client AS (v4): 262197
IPv4 Probes: 117
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
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.
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 (186.4.14.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
186.4.14.x/24/31262197natblock
186.4.14.x/24/30262197natblock
186.4.14.x/24/29262197natblock
186.4.14.x/24/28262197natblock
186.4.14.x/24/27262197natblock
186.4.14.x/24/26262197natblock
186.4.14.x/24/25262197natblock
186.4.14.x/24/24262197natblock
186.4.15.x/24/23262197natblock
186.4.12.x/24/22262197natblock
186.4.10.x/24/21262197natblock
186.4.6.x/24/20262197natblock
186.4.30.x/24/19262197natblock
186.4.46.x/24/18262197natblock
186.4.78.x/24/1727964natblock
186.4.142.x/24/1652257natblock
186.5.14.x/24/1527947natblock
186.6.14.x/24/146400natblock
186.0.14.x/24/1313489natblock
186.12.14.x/24/12UNROUTEDnatblock
186.20.14.x/24/116535natblock
186.36.14.x/24/106535natblock
186.68.14.x/24/914522natblock
186.132.14.x/24/822927natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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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