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Session Report

Summary:
Test run at: 2021-03-23 10:11:25 GMT
Client Prefix (v4): 195.176.3.x/24
Client AS (v4): 559 (SWITCH)
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 (195.176.3.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
195.176.3.x/24/31559sendto
195.176.3.x/24/30559sendto
195.176.3.x/24/29559sendto
195.176.3.x/24/28559sendto
195.176.3.x/24/27559sendto
195.176.3.x/24/26559sendto
195.176.3.x/24/25559sendto
195.176.3.x/24/24559sendto
195.176.2.x/24/23559sendto
195.176.1.x/24/22559sendto
195.176.7.x/24/21559sendto
195.176.11.x/24/20559sendto
195.176.19.x/24/19559sendto
195.176.35.x/24/18559sendto
195.176.67.x/24/17559sendto
195.176.131.x/24/163303sendto
195.177.3.x/24/154589sendto
195.178.3.x/24/1449916sendto
195.180.3.x/24/134589sendto
195.184.3.x/24/1212301sendto
195.160.3.x/24/111293sendto
195.144.3.x/24/108319sendto
195.240.3.x/24/91136sendto
195.48.3.x/24/81836sendto

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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