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Session Report

Summary:
Test run at: 2018-09-24 12:57:40 GMT
Client Prefix (v4): 185.142.152.x/24
Client AS (v4): 203201 (IT-SUPERNAP)
IPv4 Probes: 124
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 (185.142.152.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.142.152.x/24/31203201natblock
185.142.152.x/24/30203201natblock
185.142.152.x/24/29203201natblock
185.142.152.x/24/28203201natblock
185.142.152.x/24/27203201natblock
185.142.152.x/24/26203201natblock
185.142.152.x/24/25203201natblock
185.142.152.x/24/24203201natblock
185.142.153.x/24/23203201natblock
185.142.154.x/24/22203201natblock
185.142.156.x/24/2148147natblock
185.142.144.x/24/20UNROUTEDnatblock
185.142.136.x/24/1942929natblock
185.142.184.x/24/1825058natblock
185.142.216.x/24/1748427natblock
185.142.24.x/24/1661317natblock
185.143.152.x/24/1551580natblock
185.140.152.x/24/1415830natblock
185.138.152.x/24/1331672natblock
185.134.152.x/24/12UNROUTEDnatblock
185.158.152.x/24/1148096natblock
185.174.152.x/24/10204873natblock
185.206.152.x/24/98319natblock
185.14.152.x/24/8UNROUTEDnatblock

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.

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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