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Session Report

Summary:
Test run at: 2023-04-15 12:16:02 GMT
Client Prefix (v4): 190.61.87.x/24
Client AS (v4): 52468
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 (190.61.87.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
190.61.87.x/24/3152468sendto
190.61.87.x/24/3052468natblock
190.61.87.x/24/2952468natblock
190.61.87.x/24/2852468sendto
190.61.87.x/24/2752468sendto
190.61.87.x/24/2652468sendto
190.61.87.x/24/2552468sendto
190.61.87.x/24/2452468sendto
190.61.86.x/24/2352468sendto
190.61.85.x/24/2252468sendto
190.61.83.x/24/2152468sendto
190.61.95.x/24/20UNROUTEDsendto
190.61.71.x/24/19UNROUTEDsendto
190.61.119.x/24/1852468sendto
190.61.23.x/24/1718747sendto
190.61.215.x/24/1618747sendto
190.60.87.x/24/1518747sendto
190.63.87.x/24/1423487sendto
190.57.87.x/24/13263783sendto
190.53.87.x/24/1220299sendto
190.45.87.x/24/1122047natblock
190.29.87.x/24/1013489sendto
190.125.87.x/24/926611sendto
190.189.87.x/24/87303sendto

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.
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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