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Session Report

Summary:
Test run at: 2020-04-05 14:47:27 GMT
Client Prefix (v4): 194.31.237.x/24
Client AS (v4): 48693 (NTSERVICE-AS)
IPv4 Probes: 75
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 (194.31.237.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
194.31.237.x/24/3148693no
194.31.237.x/24/3048693no
194.31.237.x/24/2948693no
194.31.237.x/24/2848693no
194.31.237.x/24/2748693no
194.31.237.x/24/2648693no
194.31.237.x/24/2548693no
194.31.237.x/24/2448693no
194.31.236.x/24/2348693no
194.31.239.x/24/22UNROUTEDno
194.31.233.x/24/2131550no
194.31.229.x/24/20203329no
194.31.253.x/24/19198902no
194.31.205.x/24/18UNROUTEDno
194.31.173.x/24/17UNROUTEDno
194.31.109.x/24/163269no
194.30.237.x/24/153329no
194.29.237.x/24/1420647no
194.27.237.x/24/138517no
194.23.237.x/24/123301no
194.15.237.x/24/116805no
194.63.237.x/24/108248no
194.95.237.x/24/9680no
194.159.237.x/24/82529no

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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