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Session Report

Summary:
Test run at: 2017-07-11 05:59:29 GMT
Client Prefix (v4): 213.57.9.x/24
Client AS (v4): 12849 (HOTNET-IL)
IPv4 Probes: 117
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 (213.57.9.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
213.57.9.x/24/3121450rewritten
213.57.9.x/24/3021450rewritten
213.57.9.x/24/2921450rewritten
213.57.9.x/24/2821450rewritten
213.57.9.x/24/2721450rewritten
213.57.9.x/24/2621450rewritten
213.57.9.x/24/2521450rewritten
213.57.9.x/24/2421450rewritten
213.57.8.x/24/2321450rewritten
213.57.11.x/24/2221450rewritten
213.57.13.x/24/2112849rewritten
213.57.1.x/24/2021450rewritten
213.57.25.x/24/1912849rewritten
213.57.41.x/24/1812849rewritten
213.57.73.x/24/1712849rewritten
213.57.137.x/24/1612849rewritten
213.56.9.x/24/153215rewritten
213.59.9.x/24/148342rewritten
213.61.9.x/24/138220rewritten
213.49.9.x/24/125432rewritten
213.41.9.x/24/118220rewritten
213.25.9.x/24/105617rewritten
213.121.9.x/24/92856rewritten
213.185.9.x/24/828908rewritten

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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