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Session Report

Summary:
Test run at: 2023-05-13 15:12:01 GMT
Client Prefix (v4): 185.159.157.x/24
Client AS (v4): 209103 (ProtonVPN)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
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 (185.159.157.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.159.157.x/24/31209103sendto
185.159.157.x/24/30209103sendto
185.159.157.x/24/29209103sendto
185.159.157.x/24/28209103sendto
185.159.157.x/24/27209103sendto
185.159.157.x/24/26209103sendto
185.159.157.x/24/25209103sendto
185.159.157.x/24/24209103sendto
185.159.156.x/24/238473sendto
185.159.159.x/24/22209103sendto
185.159.153.x/24/21201999sendto
185.159.149.x/24/20UNROUTEDsendto
185.159.141.x/24/19UNROUTEDsendto
185.159.189.x/24/18UNROUTEDsendto
185.159.221.x/24/1739923sendto
185.159.29.x/24/16202618sendto
185.158.157.x/24/1528676sendto
185.157.157.x/24/1458243sendto
185.155.157.x/24/13UNROUTEDsendto
185.151.157.x/24/1212716sendto
185.143.157.x/24/11203179sendto
185.191.157.x/24/10207044sendto
185.223.157.x/24/941690sendto
185.31.157.x/24/89186sendto

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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