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Session Report

Summary:
Test run at: 2017-06-27 05:55:33 GMT
Client Prefix (v4): 212.199.144.x/24
Client AS (v4): 9116 (GOLDENLINES-ASN)
IPv4 Probes: 118
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 (212.199.144.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
212.199.144.x/24/319116natblock
212.199.144.x/24/309116natblock
212.199.144.x/24/299116natblock
212.199.144.x/24/289116natblock
212.199.144.x/24/279116natblock
212.199.144.x/24/269116natblock
212.199.144.x/24/259116natblock
212.199.144.x/24/249116natblock
212.199.145.x/24/239116natblock
212.199.146.x/24/229116natblock
212.199.148.x/24/219116natblock
212.199.152.x/24/209116natblock
212.199.128.x/24/199116natblock
212.199.176.x/24/189116natblock
212.199.208.x/24/179116natblock
212.199.16.x/24/169116natblock
212.198.144.x/24/1521502natblock
212.197.144.x/24/141901natblock
212.195.144.x/24/135410natblock
212.207.144.x/24/125503natblock
212.215.144.x/24/1144614natblock
212.231.144.x/24/1015704natblock
212.135.144.x/24/94589natblock
212.71.144.x/24/89080natblock

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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