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Session Report

Summary:
Test run at: 2021-06-18 14:28:07 GMT
Client Prefix (v4): 37.139.140.x/24
Client AS (v4): 57866 (FUSIX-AS)
IPv4 Probes: 66
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.
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 (37.139.140.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
37.139.140.x/24/3157866yes
37.139.140.x/24/3057866yes
37.139.140.x/24/2957866yes
37.139.140.x/24/2857866yes
37.139.140.x/24/2757866yes
37.139.140.x/24/2657866yes
37.139.140.x/24/2557866yes
37.139.140.x/24/2457866yes
37.139.141.x/24/2357866yes
37.139.142.x/24/2257866yes
37.139.136.x/24/2157866yes
37.139.132.x/24/206453yes
37.139.156.x/24/19198538yes
37.139.172.x/24/1825133yes
37.139.204.x/24/1733894yes
37.139.12.x/24/1614061yes
37.138.140.x/24/159145yes
37.137.140.x/24/1457218yes
37.143.140.x/24/13196745yes
37.131.140.x/24/1221021yes
37.155.140.x/24/1120978yes
37.171.140.x/24/1051207yes
37.203.140.x/24/942689yes
37.11.140.x/24/812479yes

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 10 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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