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Session Report

Summary:
Test run at: 2016-10-05 16:06:12 GMT
Client Prefix (v4): 52.209.167.x/24
Client AS (v4): 16509 (AMAZON-02)
IPv4 Probes: 89
Client Prefix (v6): 2001:67c:27xx::/40
Client AS (v6): 8881 (VERSATEL)
IPv6 Probes: 72
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedunknown
Routable blockedunknown
Largest spoofable neighbor prefix length nonenone

Meaning of result status in column:

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 (52.209.167.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
52.209.167.x/24/3116509natblock
52.209.167.x/24/3016509natblock
52.209.167.x/24/2916509natblock
52.209.167.x/24/2816509natblock
52.209.167.x/24/2716509natblock
52.209.167.x/24/2616509natblock
52.209.167.x/24/2516509natblock
52.209.167.x/24/2416509natblock
52.209.166.x/24/2316509natblock
52.209.165.x/24/2216509natblock
52.209.163.x/24/2116509natblock
52.209.175.x/24/2016509natblock
52.209.183.x/24/1916509natblock
52.209.135.x/24/1816509natblock
52.209.231.x/24/1716509natblock
52.209.39.x/24/1616509natblock
52.208.167.x/24/1516509natblock
52.211.167.x/24/1416509natblock
52.213.167.x/24/1316509natblock
52.217.167.x/24/1216509natblock
52.193.167.x/24/1116509natblock
52.241.167.x/24/108075natblock
52.145.167.x/24/98075natblock
52.81.167.x/24/8UNROUTEDnatblock

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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