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Session Report

Summary:
Test run at: 2020-04-25 13:27:11 GMT
Client Prefix (v4): 185.213.155.x/24
Client AS (v4): 39351 (ESAB-AS)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
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 (185.213.155.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.213.155.x/24/3139351sendto
185.213.155.x/24/3039351sendto
185.213.155.x/24/2939351sendto
185.213.155.x/24/2839351sendto
185.213.155.x/24/2739351sendto
185.213.155.x/24/2639351sendto
185.213.155.x/24/2539351sendto
185.213.155.x/24/2439351sendto
185.213.154.x/24/2339351sendto
185.213.153.x/24/2239351sendto
185.213.159.x/24/2151408sendto
185.213.147.x/24/2043451sendto
185.213.139.x/24/1961308sendto
185.213.187.x/24/18206610sendto
185.213.219.x/24/17UNROUTEDsendto
185.213.27.x/24/1663473sendto
185.212.155.x/24/1543364sendto
185.215.155.x/24/14205490sendto
185.209.155.x/24/13UNROUTEDsendto
185.221.155.x/24/1249189sendto
185.197.155.x/24/1128909sendto
185.245.155.x/24/10206283sendto
185.149.155.x/24/944771sendto
185.85.155.x/24/857388sendto

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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