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Session Report

Summary:
Test run at: 2022-06-23 20:01:17 GMT
Client Prefix (v4): 187.1.185.x/24
Client AS (v4): 21574
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
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.
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 (187.1.185.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
187.1.185.x/24/3121574no
187.1.185.x/24/3021574no
187.1.185.x/24/2921574no
187.1.185.x/24/2821574no
187.1.185.x/24/2721574no
187.1.185.x/24/2621574no
187.1.185.x/24/2521574no
187.1.185.x/24/2421574no
187.1.184.x/24/2321574no
187.1.187.x/24/2221574no
187.1.189.x/24/2121574no
187.1.177.x/24/2021574no
187.1.169.x/24/1928252no
187.1.153.x/24/1828251no
187.1.249.x/24/17UNROUTEDno
187.1.57.x/24/1628201no
187.0.185.x/24/1528241no
187.3.185.x/24/1428573no
187.5.185.x/24/138167no
187.9.185.x/24/1210429no
187.17.185.x/24/1128264no
187.33.185.x/24/10262694no
187.65.185.x/24/928573no
187.129.185.x/24/8UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

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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