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Session Report

Summary:
Test run at: 2017-04-25 12:44:43 GMT
Client Prefix (v4): 37.18.144.x/24
Client AS (v4): 31733 (RYA-AS)
IPv4 Probes: 104
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 (37.18.144.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
37.18.144.x/24/3131733natblock
37.18.144.x/24/3031733natblock
37.18.144.x/24/2931733natblock
37.18.144.x/24/2831733natblock
37.18.144.x/24/2731733natblock
37.18.144.x/24/2631733natblock
37.18.144.x/24/2531733natblock
37.18.144.x/24/2431733natblock
37.18.145.x/24/2331733natblock
37.18.146.x/24/22UNROUTEDnatblock
37.18.148.x/24/2131733natblock
37.18.152.x/24/2048176natblock
37.18.128.x/24/19UNROUTEDnatblock
37.18.176.x/24/1836351natblock
37.18.208.x/24/17198347natblock
37.18.16.x/24/1656495natblock
37.19.144.x/24/1531343natblock
37.16.144.x/24/1435819natblock
37.22.144.x/24/1312389natblock
37.26.144.x/24/12198484natblock
37.2.144.x/24/111257natblock
37.50.144.x/24/103320natblock
37.82.144.x/24/93320natblock
37.146.144.x/24/83216natblock

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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