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Session Report

Summary:
Test run at: 2017-06-05 05:26:52 GMT
Client Prefix (v4): 41.188.53.x/24
Client AS (v4): 37054 (Telecom-Malagasy)
IPv4 Probes: 132
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 (41.188.53.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
41.188.53.x/24/3137054natblock
41.188.53.x/24/3037054natblock
41.188.53.x/24/2937054natblock
41.188.53.x/24/2837054sendto
41.188.53.x/24/2737054sendto
41.188.53.x/24/2637054sendto
41.188.53.x/24/2537054sendto
41.188.53.x/24/2437054sendto
41.188.52.x/24/2337054sendto
41.188.55.x/24/2237054sendto
41.188.49.x/24/2137054sendto
41.188.61.x/24/2037054sendto
41.188.37.x/24/1937054sendto
41.188.21.x/24/1837054sendto
41.188.117.x/24/1729544sendto
41.188.181.x/24/1637084sendto
41.189.53.x/24/1529571sendto
41.190.53.x/24/1430844sendto
41.184.53.x/24/1329091sendto
41.180.53.x/24/1236916sendto
41.172.53.x/24/1136937sendto
41.156.53.x/24/1037168sendto
41.252.53.x/24/921003sendto
41.60.53.x/24/830969sendto

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.
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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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