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Session Report

Summary:
Test run at: 2018-05-31 15:05:43 GMT
Client Prefix (v4): 83.240.241.x/24
Client AS (v4): 15525 (MEO-EMPRESAS)
IPv4 Probes: 99
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 (83.240.241.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
83.240.241.x/24/31UNROUTEDsendto
83.240.241.x/24/30UNROUTEDsendto
83.240.241.x/24/29UNROUTEDsendto
83.240.241.x/24/28UNROUTEDsendto
83.240.241.x/24/27UNROUTEDsendto
83.240.241.x/24/26UNROUTEDsendto
83.240.241.x/24/25UNROUTEDsendto
83.240.241.x/24/24UNROUTEDsendto
83.240.240.x/24/23UNROUTEDsendto
83.240.243.x/24/22UNROUTEDsendto
83.240.245.x/24/21UNROUTEDsendto
83.240.249.x/24/20UNROUTEDsendto
83.240.225.x/24/19UNROUTEDsendto
83.240.209.x/24/18UNROUTEDsendto
83.240.177.x/24/17UNROUTEDsendto
83.240.113.x/24/16UNROUTEDsendto
83.241.241.x/24/15UNROUTEDsendto
83.242.241.x/24/14UNROUTEDsendto
83.244.241.x/24/13UNROUTEDsendto
83.248.241.x/24/12UNROUTEDsendto
83.224.241.x/24/11UNROUTEDsendto
83.208.241.x/24/10UNROUTEDsendto
83.176.241.x/24/9UNROUTEDsendto
83.112.241.x/24/8UNROUTEDsendto

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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