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Session Report

Summary:
Test run at: 2021-06-18 06:39:34 GMT
Client Prefix (v4): 201.33.174.x/24
Client AS (v4): 53181
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
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 (201.33.174.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
201.33.174.x/24/3153181sendto
201.33.174.x/24/3053181sendto
201.33.174.x/24/2953181sendto
201.33.174.x/24/2853181sendto
201.33.174.x/24/2753181sendto
201.33.174.x/24/2653181sendto
201.33.174.x/24/2553181sendto
201.33.174.x/24/2453181sendto
201.33.175.x/24/2353181sendto
201.33.172.x/24/2253181sendto
201.33.170.x/24/2153181sendto
201.33.166.x/24/2053181sendto
201.33.190.x/24/19262589sendto
201.33.142.x/24/1828274sendto
201.33.238.x/24/1728285sendto
201.33.46.x/24/1628624sendto
201.32.174.x/24/157738sendto
201.35.174.x/24/148167sendto
201.37.174.x/24/1328573sendto
201.41.174.x/24/128167sendto
201.49.174.x/24/1128602sendto
201.1.174.x/24/1027699sendto
201.97.174.x/24/98151sendto
201.161.174.x/24/816960sendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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.
Last Modified