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Session Report

Summary:
Test run at: 2017-02-03 15:19:26 GMT
Client Prefix (v4): 83.240.191.x/24
Client AS (v4): 15525 (MEO-EMPRESAS)
IPv4 Probes: 90
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable blocked
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.
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 (83.240.191.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
83.240.191.x/24/3115525sendto
83.240.191.x/24/3015525sendto
83.240.191.x/24/2915525sendto
83.240.191.x/24/2815525sendto
83.240.191.x/24/2715525sendto
83.240.191.x/24/2615525sendto
83.240.191.x/24/2515525sendto
83.240.191.x/24/2415525sendto
83.240.190.x/24/2315525sendto
83.240.189.x/24/2215525sendto
83.240.187.x/24/2115525sendto
83.240.183.x/24/2015525sendto
83.240.175.x/24/1915525sendto
83.240.159.x/24/1815525sendto
83.240.255.x/24/1715525sendto
83.240.63.x/24/1631246sendto
83.241.191.x/24/1521195sendto
83.242.191.x/24/148359sendto
83.244.191.x/24/1325180sendto
83.248.191.x/24/1239651sendto
83.224.191.x/24/11UNROUTEDsendto
83.208.191.x/24/105610sendto
83.176.191.x/24/91257sendto
83.112.191.x/24/83215sendto

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.
Last Modified