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Session Report

Summary:
Test run at: 2017-06-08 17:06:43 GMT
Client Prefix (v4): 37.182.216.x/24
Client AS (v4): 30722 (VODAFONE-IT-ASN)
IPv4 Probes: 119
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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 (37.182.216.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
37.182.216.x/24/3130722rewritten
37.182.216.x/24/3030722rewritten
37.182.216.x/24/2930722rewritten
37.182.216.x/24/2830722rewritten
37.182.216.x/24/2730722rewritten
37.182.216.x/24/2630722rewritten
37.182.216.x/24/2530722rewritten
37.182.216.x/24/2430722rewritten
37.182.217.x/24/2330722rewritten
37.182.218.x/24/2230722rewritten
37.182.220.x/24/2130722rewritten
37.182.208.x/24/2030722rewritten
37.182.200.x/24/1930722rewritten
37.182.248.x/24/1830722rewritten
37.182.152.x/24/1730722rewritten
37.182.88.x/24/1630722rewritten
37.183.216.x/24/1530722rewritten
37.180.216.x/24/1430722rewritten
37.178.216.x/24/1330722rewritten
37.190.216.x/24/1221021rewritten
37.166.216.x/24/1151207rewritten
37.150.216.x/24/109198rewritten
37.246.216.x/24/957598rewritten
37.54.216.x/24/86849rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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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