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Session Report

Summary:
Test run at: 2017-02-26 09:23:34 GMT
Client Prefix (v4): 141.255.159.x/24
Client AS (v4): 29075 (IELO)
IPv4 Probes: 105
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 (141.255.159.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
141.255.159.x/24/3129075sendto
141.255.159.x/24/3029075sendto
141.255.159.x/24/2929075sendto
141.255.159.x/24/2829075sendto
141.255.159.x/24/2729075sendto
141.255.159.x/24/2629075sendto
141.255.159.x/24/2529075sendto
141.255.159.x/24/2429075sendto
141.255.158.x/24/2329075sendto
141.255.157.x/24/2229075sendto
141.255.155.x/24/2129075sendto
141.255.151.x/24/2029075sendto
141.255.143.x/24/198218sendto
141.255.191.x/24/1842695sendto
141.255.223.x/24/172107sendto
141.255.31.x/24/163329sendto
141.254.159.x/24/15UNROUTEDsendto
141.253.159.x/24/14UNROUTEDsendto
141.251.159.x/24/13UNROUTEDsendto
141.247.159.x/24/12UNROUTEDsendto
141.239.159.x/24/1136149sendto
141.223.159.x/24/103784sendto
141.191.159.x/24/9UNROUTEDsendto
141.127.159.x/24/8719sendto

Meaning of status in Received column:

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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