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Session Report

Summary:
Test run at: 2021-06-18 16:49:19 GMT
Client Prefix (v4): 138.99.103.x/24
Client AS (v4): 263750
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable received
Largest spoofable neighbor prefix length none

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.

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 (138.99.103.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
138.99.103.x/24/31263750sendto
138.99.103.x/24/30263750sendto
138.99.103.x/24/29263750sendto
138.99.103.x/24/28263750sendto
138.99.103.x/24/27263750sendto
138.99.103.x/24/26263750sendto
138.99.103.x/24/25263750sendto
138.99.103.x/24/24263750sendto
138.99.102.x/24/23263750sendto
138.99.101.x/24/22263750sendto
138.99.99.x/24/21264171sendto
138.99.111.x/24/2052747sendto
138.99.119.x/24/1953233sendto
138.99.71.x/24/18264160sendto
138.99.39.x/24/17263740sendto
138.99.231.x/24/16UNROUTEDsendto
138.98.103.x/24/15UNROUTEDsendto
138.97.103.x/24/14264181sendto
138.103.103.x/24/137046sendto
138.107.103.x/24/122497sendto
138.115.103.x/24/11270sendto
138.67.103.x/24/1036704sendto
138.35.103.x/24/9UNROUTEDsendto
138.227.103.x/24/8UNROUTEDsendto

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.
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