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Session Report

Summary:
Test run at: 2017-07-23 19:04:42 GMT
Client Prefix (v4): 89.27.237.x/24
Client AS (v4): 8881 (VERSATEL)
IPv4 Probes: 117
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.
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 (89.27.237.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
89.27.237.x/24/318881sendto
89.27.237.x/24/308881sendto
89.27.237.x/24/298881sendto
89.27.237.x/24/288881sendto
89.27.237.x/24/278881sendto
89.27.237.x/24/268881sendto
89.27.237.x/24/258881sendto
89.27.237.x/24/248881sendto
89.27.236.x/24/238881sendto
89.27.239.x/24/228881sendto
89.27.233.x/24/218881sendto
89.27.229.x/24/208881sendto
89.27.253.x/24/198881sendto
89.27.205.x/24/188881sendto
89.27.173.x/24/178881sendto
89.27.109.x/24/1616086sendto
89.26.237.x/24/155626sendto
89.25.237.x/24/1431242sendto
89.31.237.x/24/1343198sendto
89.19.237.x/24/1261157sendto
89.11.237.x/24/1115659sendto
89.59.237.x/24/105430sendto
89.91.237.x/24/95410sendto
89.155.237.x/24/82860sendto

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