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Session Report

Summary:
Test run at: 2017-02-24 02:02:23 GMT
Client Prefix (v4): 192.99.203.x/24
Client AS (v4): 16276 (OVH)
IPv4 Probes: 91
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
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 (192.99.203.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
192.99.203.x/24/3116276no
192.99.203.x/24/3016276no
192.99.203.x/24/2916276no
192.99.203.x/24/2816276no
192.99.203.x/24/2716276no
192.99.203.x/24/2616276no
192.99.203.x/24/2516276no
192.99.203.x/24/2416276no
192.99.202.x/24/2316276no
192.99.201.x/24/2216276no
192.99.207.x/24/2116276no
192.99.195.x/24/2016276no
192.99.219.x/24/1916276no
192.99.235.x/24/1816276no
192.99.139.x/24/1716276no
192.99.75.x/24/1616276no
192.98.203.x/24/1512180no
192.97.203.x/24/14UNROUTEDno
192.103.203.x/24/1314677no
192.107.203.x/24/1216086no
192.115.203.x/24/111680no
192.67.203.x/24/1012643no
192.35.203.x/24/953610no
192.227.203.x/24/836352no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

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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