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Session Report

Summary:
Test run at: 2017-06-21 08:42:07 GMT
Client Prefix (v4): 89.216.194.x/24
Client AS (v4): 31042 (SERBIA-BROADBAND-AS)
IPv4 Probes: 117
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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 (89.216.194.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
89.216.194.x/24/3131042rewritten
89.216.194.x/24/3031042rewritten
89.216.194.x/24/2931042rewritten
89.216.194.x/24/2831042rewritten
89.216.194.x/24/2731042rewritten
89.216.194.x/24/2631042rewritten
89.216.194.x/24/2531042rewritten
89.216.194.x/24/2431042rewritten
89.216.195.x/24/2331042rewritten
89.216.192.x/24/2231042rewritten
89.216.198.x/24/2131042rewritten
89.216.202.x/24/2031042rewritten
89.216.210.x/24/1931042rewritten
89.216.226.x/24/1831042rewritten
89.216.130.x/24/1731042rewritten
89.216.66.x/24/1631042rewritten
89.217.194.x/24/156730rewritten
89.218.194.x/24/149198rewritten
89.220.194.x/24/138608rewritten
89.208.194.x/24/1212695rewritten
89.200.194.x/24/116839rewritten
89.248.194.x/24/1041270rewritten
89.152.194.x/24/92860rewritten
89.88.194.x/24/85410rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 1 IP hop(s).
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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