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Session Report

Summary:
Test run at: 2020-02-01 11:49:23 GMT
Client Prefix (v4): 191.37.140.x/24
Client AS (v4): 263367
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /28

Meaning of result status in column:

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 (191.37.140.x/24) can spoof 15 neighboring addresses (within your /28 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
191.37.140.x/24/31263367yes
191.37.140.x/24/30263367no
191.37.140.x/24/29263367no
191.37.140.x/24/28263367yes
191.37.140.x/24/27263367no
191.37.140.x/24/26263367no
191.37.140.x/24/25263367no
191.37.140.x/24/24263367no
191.37.141.x/24/23263367no
191.37.142.x/24/22263367no
191.37.136.x/24/21263360no
191.37.132.x/24/20263359no
191.37.156.x/24/19263362no
191.37.172.x/24/18263368no
191.37.204.x/24/17263371no
191.37.12.x/24/16263350no
191.36.140.x/24/15263335no
191.39.140.x/24/1453037no
191.33.140.x/24/1318881no
191.45.140.x/24/127738no
191.53.140.x/24/1128202no
191.5.140.x/24/10263536no
191.101.140.x/24/961317no
191.165.140.x/24/826615no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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 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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