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Session Report

Summary:
Test run at: 2017-02-04 08:48:32 GMT
Client Prefix (v4): 194.6.237.x/24
Client AS (v4): 33850 (UNIORSI-AS)
IPv4 Probes: 105
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 (194.6.237.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
194.6.237.x/24/3133850natblock
194.6.237.x/24/3033850natblock
194.6.237.x/24/2933850natblock
194.6.237.x/24/2833850natblock
194.6.237.x/24/2733850natblock
194.6.237.x/24/2633850natblock
194.6.237.x/24/2533850natblock
194.6.237.x/24/2433850natblock
194.6.236.x/24/233301natblock
194.6.239.x/24/228881natblock
194.6.233.x/24/2133927natblock
194.6.229.x/24/2012353natblock
194.6.253.x/24/19UNROUTEDnatblock
194.6.205.x/24/1843939natblock
194.6.173.x/24/173303natblock
194.6.109.x/24/164589natblock
194.7.237.x/24/15702natblock
194.4.237.x/24/1451366natblock
194.2.237.x/24/133215natblock
194.14.237.x/24/1250989natblock
194.22.237.x/24/113301natblock
194.38.237.x/24/103303natblock
194.70.237.x/24/92529natblock
194.134.237.x/24/85390natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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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