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Session Report

Summary:
Test run at: 2017-11-23 17:40:39 GMT
Client Prefix (v4): 190.7.211.x/24
Client AS (v4): 27876
IPv4 Probes: 102
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
Largest spoofable neighbor prefix length none

Meaning of result status in column:

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 (190.7.211.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
190.7.211.x/24/3127876rewritten
190.7.211.x/24/3027876rewritten
190.7.211.x/24/2927876rewritten
190.7.211.x/24/2827876rewritten
190.7.211.x/24/2727876rewritten
190.7.211.x/24/2627876rewritten
190.7.211.x/24/2527876rewritten
190.7.211.x/24/2427876rewritten
190.7.210.x/24/2327876rewritten
190.7.209.x/24/2227876rewritten
190.7.215.x/24/2127876rewritten
190.7.219.x/24/2027876rewritten
190.7.195.x/24/1927876rewritten
190.7.243.x/24/1827881rewritten
190.7.147.x/24/1713489rewritten
190.7.83.x/24/1627855rewritten
190.6.211.x/24/1528015rewritten
190.5.211.x/24/149498rewritten
190.3.211.x/24/1327695rewritten
190.15.211.x/24/1227879rewritten
190.23.211.x/24/1127866rewritten
190.39.211.x/24/108048rewritten
190.71.211.x/24/913489rewritten
190.135.211.x/24/86057rewritten

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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