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Session Report

Summary:
Test run at: 2017-04-02 13:34:39 GMT
Client Prefix (v4): 200.30.224.x/24
Client AS (v4): 22047
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 (200.30.224.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
200.30.224.x/24/3122047natblock
200.30.224.x/24/3022047natblock
200.30.224.x/24/2922047natblock
200.30.224.x/24/2822047natblock
200.30.224.x/24/2722047natblock
200.30.224.x/24/2622047natblock
200.30.224.x/24/2522047natblock
200.30.224.x/24/2422047natblock
200.30.225.x/24/2322047natblock
200.30.226.x/24/2222047natblock
200.30.228.x/24/2122047natblock
200.30.232.x/24/2022047natblock
200.30.240.x/24/1922047natblock
200.30.192.x/24/1822047natblock
200.30.160.x/24/1720299natblock
200.30.96.x/24/167315natblock
200.31.224.x/24/15UNROUTEDnatblock
200.28.224.x/24/147418natblock
200.26.224.x/24/13UNROUTEDnatblock
200.22.224.x/24/12UNROUTEDnatblock
200.14.224.x/24/11UNROUTEDnatblock
200.62.224.x/24/1012252natblock
200.94.224.x/24/913999natblock
200.158.224.x/24/827699natblock

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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