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Session Report

Summary:
Test run at: 2017-05-20 00:01:13 GMT
Client Prefix (v4): 190.20.139.x/24
Client AS (v4): 7418
IPv4 Probes: 117
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /8
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 (190.20.139.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
190.20.139.x/24/317418yes
190.20.139.x/24/307418yes
190.20.139.x/24/297418yes
190.20.139.x/24/287418yes
190.20.139.x/24/277418yes
190.20.139.x/24/267418yes
190.20.139.x/24/257418yes
190.20.139.x/24/247418yes
190.20.138.x/24/237418yes
190.20.137.x/24/227418yes
190.20.143.x/24/217418yes
190.20.131.x/24/207418yes
190.20.155.x/24/197418yes
190.20.171.x/24/187418yes
190.20.203.x/24/177418yes
190.20.11.x/24/167418yes
190.21.139.x/24/157418yes
190.22.139.x/24/147418yes
190.16.139.x/24/1310481yes
190.28.139.x/24/1213489yes
190.4.139.x/24/1111081yes
190.52.139.x/24/1027866yes
190.84.139.x/24/910620yes
190.148.139.x/24/814754yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

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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