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Session Report

Summary:
Test run at: 2021-09-27 16:02:46 GMT
Client Prefix (v4): 65.131.253.x/24
Client AS (v4): 209 (CENTURYLINK-US-LEGACY-QWEST)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
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 (65.131.253.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
65.131.253.x/24/31209sendto
65.131.253.x/24/30209sendto
65.131.253.x/24/29209sendto
65.131.253.x/24/28209sendto
65.131.253.x/24/27209sendto
65.131.253.x/24/26209sendto
65.131.253.x/24/25209sendto
65.131.253.x/24/24209sendto
65.131.252.x/24/23209sendto
65.131.255.x/24/22209sendto
65.131.249.x/24/21209sendto
65.131.245.x/24/20209sendto
65.131.237.x/24/19209sendto
65.131.221.x/24/18209sendto
65.131.189.x/24/17209sendto
65.131.125.x/24/16209sendto
65.130.253.x/24/15209sendto
65.129.253.x/24/14209sendto
65.135.253.x/24/13209sendto
65.139.253.x/24/12209sendto
65.147.253.x/24/11209sendto
65.163.253.x/24/101239sendto
65.195.253.x/24/9701sendto
65.3.253.x/24/816509sendto

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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