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Session Report

Summary:
Test run at: 2017-09-29 16:22:04 GMT
Client Prefix (v4): 209.159.210.x/24
Client AS (v4): 20412 (CLARITY-TELECOM)
IPv4 Probes: 117
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
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 (209.159.210.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
209.159.210.x/24/3120412natblock
209.159.210.x/24/3020412natblock
209.159.210.x/24/2920412natblock
209.159.210.x/24/2820412natblock
209.159.210.x/24/2720412natblock
209.159.210.x/24/2620412natblock
209.159.210.x/24/2520412natblock
209.159.210.x/24/2420412natblock
209.159.211.x/24/2320412natblock
209.159.208.x/24/2220412natblock
209.159.214.x/24/2120412natblock
209.159.218.x/24/2020412natblock
209.159.194.x/24/1920412natblock
209.159.242.x/24/1820412natblock
209.159.146.x/24/1719318natblock
209.159.82.x/24/16UNROUTEDnatblock
209.158.210.x/24/15701natblock
209.157.210.x/24/142914natblock
209.155.210.x/24/137029natblock
209.151.210.x/24/1213984natblock
209.143.210.x/24/11UNROUTEDnatblock
209.191.210.x/24/1014371natblock
209.223.210.x/24/93561natblock
209.31.210.x/24/82828natblock

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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